Supercritical Omega-7 [Discontinued] by New Chapter

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Acne. Topical calendula has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Clinical research in patients with mild to moderate acne associated with mask wearing shows that topical application of a combination of calendula 4%, licorice root extract 0.3%, and snail secretion filtrate 40% (AI complex) to the face twice daily for 12 weeks modestly reduces inflammatory, but not non-inflammatory or total, acne lesions when compared with placebo. There was no difference in overall treatment success, defined as at least almost clear skin or a large improvement (110322). It is unclear if any benefits are due to calendula, other ingredients, or the combination.
• Bacterial vaginosis. It is unclear if topical calendula is beneficial for improving bacterial vaginosis. Details: A small clinical study in patients with bacterial vaginosis shows that applying 5 grams of vaginal cream containing calendula flower extract before bed for one week improves vaginal burning, odor, painful urination, and painful intercourse when compared to baseline (96649). The validity of these findings is limited by the lack of a comparator group.
• Burns. It is unclear if oral calendula is beneficial for burn healing. Details: A small clinical trial in patients hospitalized for second-degree burns shows that taking calendula 2 grams daily for 2 weeks has a large beneficial effect on wound healing when compared with placebo (110323).
• Chronic obstructive pulmonary disease (COPD). Oral calendula has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in males aged 40-70 years with a history of smoking and stage 2 COPD shows that taking a specific combination of calendula flowers 165 mg, elderberry 165 mg, and heart's ease herb 165 mg (Inflaminat, INAT-Farma), 3 capsules daily for 6 months, modestly improves symptoms, as measured on the breathlessness, cough, and sputum scale (BCSS), and mean forced expiratory volume in 1 second (FEV1) when compared to baseline. However, there was no improvement of COPD exacerbations or other pulmonary function tests (103629). The validity of this finding is limited by the lack of statistical comparison to the placebo group. Furthermore, it is unclear if these effects are due to calendula, the other ingredients, or the combination.
• Chronic prostatitis and chronic pelvic pain syndrome (CP/CPPS). Calendula in rectal suppositories has only been evaluated in combination with turmeric extract; its effect when used alone is unclear. Details: A small clinical study in patients with CP/CPPS shows that using a rectal suppository containing turmeric extract 350 mg and calendula extract 80 mg daily for one month improves pain, peak urine flow rate, and erectile function when compared with placebo (96648). It is unclear if these effects are due to calendula, turmeric, or the combination.
• Conjunctivitis. Although there is interest in using topical calendula for conjunctivitis, there is insufficient reliable information about the clinical effects of calendula for this condition.
• Diabetic foot ulcers. It is unclear if topical calendula is beneficial for improving diabetic foot ulcers. Details: Observational research has found that applying a calendula hydroglycolic extract spray in addition to standard care and hygiene is associated with reduced bacterial colonization and improved odor in patients that have had a diabetic ulcer for over 3 months (93548).
• Diaper rash. It is unclear if topical calendula is beneficial for improving diaper rash. Details: One preliminary clinical study in children less than 3 years of age shows that topical application of calendula 1.5% ointment three times daily for 10 days improves diaper rash when compared with aloe gel (19779). However, other preliminary clinical research shows that applying calendula 1.5% cream every 4-6 hours for 3 days improves diaper rash in fewer infants when compared to treatment with bentonite 50% mineral solution (93545,93554).
• Dysmenorrhea. Although there is interest in using oral calendula for dysmenorrhea, there is insufficient reliable information about the clinical effects of calendula for this condition.
• Gingivitis. It is unclear if using a mouth rinse with calendula is beneficial for improving gingivitis. Details: Preliminary clinical research in patients with mild gingivitis and bleeding gums shows that rinsing the mouth with a tincture containing calendula 25% (Dr. Willmar Schwabe Germany Home Pharmacy Pvt. Ltd.) twice daily for 6 months decreases plaque, gingivitis, and bleeding by 10% to 18% when compared to rinsing with water (93551). Other preliminary clinical research in adults with mild to moderate gingivitis and mild plaque shows that rinsing the mouth with a combination mouthwash containing a 5% extract of calendula, rosemary, and ginger for 30 seconds twice daily after food for 2 weeks decreases plaque, gingivitis, and bleeding when compared with a placebo mouthwash. The effects of this combination mouthwash appear to be similar to chlorhexidine 0.2% mouthwash (93555). It is unclear if these effects are due to calendula, other ingredients, or the combination.
• Hemorrhoids. Although there is interest in using topical calendula for hemorrhoids, there is insufficient reliable information about the clinical effects of calendula for this purpose.
• Liver disease. Although there is interest in using oral calendula for liver disease, there is insufficient reliable information about the clinical effects of calendula for this condition.
• Mosquito repellent. It is unclear if topical calendula essential oil helps to repel mosquitos. Details: Preliminary clinical research shows that applying calendula 50% essential oil to the skin does not repel mosquitos as effectively as applying DEET. Mean repellency time was about 2 hours for patients applying calendula, which was shorter than the 6 hour repellency with DEET (93562).
• Oral leukoplakia. It is unclear if topical calendula is beneficial for improving oral leukoplakia. Details: Preliminary clinical research in patients with oral leukoplakia shows that applying a gel containing calendula flower extract 0.2% three times daily for one month reduces lesion size by about 2 cm when compared to baseline (96650). The validity of this finding is limited by the lack of a comparator group.
• Oral mucositis. Calendula as a mouth rinse has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Clinical research in patients with head and neck cancer receiving chemotherapy and radiotherapy shows that rinsing with 7 mL of a specific product (Faringel, Cadigroup) containing calendula powder extract 2%, propolis, aloe vera, and chamomile three times daily for 6 weeks does not prevent oral mucositis when compared with placebo (95879).
• Otitis media. Topical calendula has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in children with otitis media shows that applying a specific combination product containing calendula, mullein, garlic, and St. John's wort in olive oil (Otikon Otic Solution, Healthy-On Ltd, Petach-Tikva, Israel), five drops into the affected ear three times daily for 3 days, may reduce ear pain when compared with baseline (39500,39552). It is unclear if this effect is due to calendula, other ingredients, or the combination. Furthermore, due to the lack of an adequate control group, it is unclear whether the pain reduction was due to the resolution of otitis media.
• Peptic ulcers. Although there is interest in using oral calendula for peptic ulcers, there is insufficient reliable information about the clinical effects of calendula for this condition.
• Pressure ulcers. It is unclear if topical calendula is beneficial for improving pressure ulcers. Details: Observational research has found that the application of a specific calendula product (Plenusdermax) twice daily is associated with improved healing in patients with pressure ulcers that have not changed in size for at least 3 months (93549). Preliminary clinical research in hospice patients with symptomatic pressure ulcers and other wounds shows that applying a homeopathic powder (RGN107) containing calendula 0.1% and arnica 0.01% to wounds for 4 weeks is rated by the patients and caregivers to be acceptable for controlling pain, odor, and exudate when compared with baseline (96647). The validity of this finding is limited by the lack of a control group.
• Radiation dermatitis. It is unclear if topical calendula reduces radiation dermatitis symptoms. Details: Meta-analyses of three preliminary clinical trials in patients with breast cancer show that topical calendula does not affect the development of radiation dermatitis or the incidence of moderate to severe symptoms when compared to control (110325,113674). In addition, a meta-analysis of two studies (39503,93560) shows that topical calendula does not reduce the incidence of treatment interruptions due to severe symptoms of radiation dermatitis (110325). In one of the included studies, a specific calendula petroleum jelly ointment (Pommade au Calendula par Digestion, Boiron Ltd.) used twice daily during radiation therapy was found to reduce acute radiation dermatitis occurrence when compared with topical trolamine (Biafine) (39503). However, it is unclear if the benefit was due to calendula or petroleum jelly. Another clinical study used a specific calendula 10% cream in wool fat and sesame oil (Calendula Weleda, Weleda AG) twice daily during radiation therapy. This product was found to be no better than aqueous petroleum jelly cream (Essex, Schering-Plough) for reducing acute skin reactions and dermatitis symptoms of pain, burning, itching, pulling, and tenderness (93560).
• Vaginal atrophy. Topical calendula has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in menopausal patients with vaginal atrophy shows that use of a specific vaginal gel containing calendula, Lactobacillus sporogenes, isoflavones, and lactic acid (Estromineral Gel, Rottapharm-Madaus) daily for 4 weeks reduces vaginal itching, burning, dryness, and painful intercourse when compared with no topical treatment. Both groups also received oral isoflavones (39534). It is unclear if these effects are due to calendula, other ingredients, or the combination.
• Vaginal candidiasis. One small clinical study suggest that topical calendula is not beneficial for the treatment of vaginal candidiasis. Details: Preliminary clinical research shows that applying 5 grams of calendula 1% cream intravaginally once daily for 7 days effectively treats vaginal candidiasis in 34% fewer patients when compared with using clotrimazole 1% cream (93559).
• Venous leg ulcers. It is unclear if topical calendula is beneficial for improving venous leg ulcers. Details: Preliminary clinical research shows that applying a calendula 7.5% ointment twice daily for 3 weeks to venous leg ulcers accelerates healing when compared with applying saline solution dressing (39509).
• Wound healing. It is unclear if topical calendula is beneficial for improving the healing of small wounds. Details: Two small clinical trials in postpartum patients show that applying calendula ointment (formulation unspecified) to the episiotomy wound every 8 hours for 5-10 days modestly reduces pain, and seems to speed up the resolution of redness, edema, and ecchymosis, when compared with standard care, such as application of betadine solution (93550,105087). Another small clinical study in adults with wounds smaller than 10 cm² on the hands and fingers shows that applying calendula flower extract 2% to the wound twice daily may modestly improve healing and epithelialization time when compared with mineral oil (107806). More evidence is needed to rate calendula for these uses.

(Read more about CALENDULA)

POSSIBLY EFFECTIVE

• Memory. Oral rosemary seems to improve memory in young adults. It is unclear if rosemary aromatherapy improves memory. Details: Clinical research in healthy adults shows that taking rosemary 500 mg orally twice daily for one month improves memory by approximately 14% when compared with placebo (98536). Other preliminary clinical research shows that applying four drops of pure rosemary essential oil (Tisserand Aromatherapy) to an aromatherapy diffuser pad 5 minutes before a single test period can improve the quality, but not the speed, of memory recall, and increase alertness and contentment more than lavender aromatherapy or no aroma (18323). Rosemary aromatherapy has also been evaluated for improving memory in adults with kidney failure. A small clinical study in patients (mean age 53 years) undergoing hemodialysis shows that aromatherapy with rosemary essential oil three times weekly for 1 month does not improve medication adherence or measures of prospective and retrospective memory when compared with a control group. In this study, five drops of rosemary essential oil were applied to gauze, which was then placed 10 cm from the patient's nose for 30 minutes starting 1 hour after hemodialysis (109559).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Abortion. Although there has been interest in the use of oral rosemary as an abortifacient, there is insufficient reliable information about the clinical effects of rosemary for this purpose.
• Age-related cognitive decline. It is unclear if oral rosemary is beneficial for age-related cognitive decline. Details: A small clinical study in healthy individuals aged 65-90 years shows that a single 750 mg dose of powdered rosemary leaf in tomato juice may improve memory speed. However, higher single doses of 1500-6000 mg seem to have a deleterious effect on memory speed. For other measures of attention and memory, there were no clear benefits across the range of doses from 750-6000 mg (18246). Oral rosemary has also been evaluated in combination with other ingredients. A small clinical study in healthy adults aged 62 years or younger shows that taking a combination product containing equal parts rosemary, lemon balm, and sage twice daily for 2 weeks modestly improves word recall when compared with placebo. However, it does not appear to have benefit in adults aged 63 years and older (97277). It is unclear if any benefit is due to rosemary, other ingredients, or the combination.
• Alopecia areata. Topical rosemary oil has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research shows that rosemary oil 114 mg, in combination with lavender oil 108 mg, thyme oil 88 mg, and cedarwood oil 94 mg, mixed with jojoba oil 3 mL and grapeseed oil 20 mL and applied topically to the scalp, improves hair growth in 44% of patients, compared with 15% of those receiving placebo. This combination was massaged into the scalp for a minimum of 2 minutes, followed by wrapping the head in a warm towel, every night for 7 months (5177).
• Androgenic alopecia. It is unclear if topical rosemary is beneficial for androgenic alopecia. Details: Preliminary clinical research shows that applying rosemary oil (Barij Essence Pharmaceutical Company) 1 mL to the scalp twice daily for 6 months is as effective as minoxidil 2% for increasing hair count in patients with androgenic alopecia (91729).
• Depression. It is unclear if oral rosemary is beneficial for major depressive disorder. Details: A small clinical trial among adults newly diagnosed with major depressive disorder and recent initiation of antidepressant medication shows that taking rosemary dried leaf extract 650 mg twice daily for 8 weeks might reduce some symptoms of depression and anxiety when compared with placebo (112141). However, the validity of these findings is limited by differences in baseline depression symptom scores between groups.
• Diabetes. It is unclear if oral rosemary is beneficial for improving glycemic control in patients with type 2 diabetes. Details: In patients with type 2 diabetes, preliminary clinical research shows that taking rosemary tea daily for 90 days decreases glycated hemoglobin levels by 15% and waist and hip circumference by 6% and improves insulin resistance. However, there was no effect on fasting blood glucose, lipid profile, body weight, or body mass index (BMI). The tea was made by adding rosemary 2 grams to a liter of boiling water for 3 minutes and then passing through a sieve (105323). Other preliminary clinical research in adults with type 2 diabetes shows that taking rosemary powder 3 grams daily for 4 weeks does not reduce fasting blood glucose levels or improve lipid profile when compared with baseline. These endpoints were improved in a group of healthy adults (105327). The validity of the findings from these studies is limited by the lack a comparator group.
• Diabetic nephropathy. Oral rosemary has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research shows that taking a specific combination product (Canephron N, Bionorica) containing 18 mg each of rosemary leaf, centaury herb, and lovage root per tablet, as two tablets three times daily for 6 months along with standard antidiabetes treatment and enalapril (Vasotec), decreases microalbuminuria by 73%, decreases albumin:creatinine ratio by 46%, increases high-density lipoprotein (HDL) cholesterol by 25%, and lowers triglyceride levels by 43%, but does not improve glomerular filtration rate, when compared to baseline. Improvements were greater in those taking the combination product than in those treated only with standard antidiabetes therapy and enalapril. However, the combination product does not appear to improve reductions in total cholesterol or low-density lipoprotein (LDL) cholesterol (91726).
• Dysmenorrhea. It is unclear if oral rosemary is beneficial for dysmenorrhea. Details: In patients with moderate primary dysmenorrhea, clinical research shows that taking rosemary extract 220 mg every 8 hours for the first three days of the menstrual cycle, repeated for two menstrual cycles, is as effective as mefenamic acid for reducing average pain and bleeding when compared with two baseline cycles (105328).
• Fatigue. Oral rosemary has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in healthy young adults with below-average energy levels shows that taking a single dose of a mixture of rosemary from Albania (Rosmarinus officinalis) and Morocco (Rosmarinus eriocalyx) 1.7 grams does not consistently improve sustained attention, motivation to perform cognitive tasks, mental energy, or mental fatigue when compared with placebo (91731).
• Fibromyalgia. Oral rosemary has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in patients with fibromyalgia shows that taking an oral product containing rosemary leaf extract, oleanolic acid from olive leaf, and rho iso-alpha acids from hops (Meta050, Metagenics), at a dose of 440 mg three times daily for 4 weeks, then 880 mg twice daily for 4 weeks, does not improve symptoms when compared to baseline (18327).
• Gingivitis. A mouth rinse containing rosemary has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in adults with mild to moderate gingivitis and mild plaque shows that rinsing the mouth with 10 mL of mouthwash containing 5% v/v of a combined alcoholic extract of rosemary, calendula, and ginger for 30 seconds twice daily after meals for 2 weeks decreases plaque formation, gingival inflammation, and gingival bleeding similarly to chlorhexidine gluconate 0.2% mouthwash and better than a placebo mouthwash (93555).
• Hypertension. Although there is interest in using oral rosemary for hypertension, there is insufficient reliable information about the clinical effects of rosemary for this condition.
• Hypotension. It is unclear if oral rosemary is beneficial for hypotension. Details: Preliminary clinical research in patients with primary hypotension shows that taking rosemary essential oil (Metapharmaceutical) 1 mL every 8 hours for 44 weeks increases systolic blood pressure by 13 mmHg and diastolic blood pressure by 7 mmHg when compared to baseline. However, blood pressure returned to near baseline values after treatment discontinuation (91730).
• Mental alertness. It is unclear if rosemary aromatherapy is beneficial for improving mental alertness. Details: Preliminary clinical research in nurses working on a night shift shows that placing one drop of rosemary oil on a surgical mask that is worn for 2 hours with a 10-minute on/15-minute off cycle modestly increases alertness and reduces sleepiness when compared with a water drop control (105324).
• Nonalcoholic fatty liver disease (NAFLD). It is unclear if oral rosemary leaf is beneficial in patients with NAFLD. Details: A small clinical study in patients with NAFLD shows that taking rosemary leaf powder 2 grams twice daily for 8 weeks, in conjunction with diet and exercise recommendations, does not improve measures of liver function, glycemic control, cholesterol, or body weight when compared with placebo (109561).
• Opioid withdrawal. It is unclear if oral rosemary is beneficial for opioid withdrawal when used in combination with methadone. Details: Preliminary clinical research shows that taking rosemary leaf along with methadone for 2 weeks improves symptoms of opioid withdrawal and the ability to sleep when compared with methadone alone after 3 and 7 days of treatment, but not after 2 weeks. Rosemary leaf was provided in capsules containing 300 mg each (Barij Essence Pharmaceutical Company) at a dose of 16 capsules daily for the first 3 days, 12 capsules daily for the next 4 days, and eight capsules daily for the next 7 days, in divided doses (91727).
• Osteoarthritis. Oral rosemary has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research shows subjective reductions in pain associated with osteoarthritis when oral formulations containing rosemary leaf extract, oleanolic acid from olive leaf, and rho iso-alpha acids from hops (NG440-2, Metagenics; Meta050, Metagenics) are used (18326,18327). The formulation used in one of these studies (Meta050, Metagenics) was taken in a dose of 440 mg three times daily for 4 weeks, then 880 mg twice daily for 4 weeks (18327). The formulation used in the other study, which was taken daily for 4 weeks, contained rosemary leaf extract 112.5 mg, oleanolic acid from olive leaf 1 mg, and rho iso-alpha acids from hops 225 mg per tablet (18326).
• Raynaud syndrome. It is unclear if topical rosemary essential oil is beneficial in patients with Raynaud syndrome. Details: A very small, open-label study in patients with Raynaud syndrome caused by systemic scleroderma shows that applying 10 drops of rosemary 10% essential oil to the hands does not increase skin temperature or improve warmth perception when compared with olive oil (109560). However, this study may have been inadequately powered to detect a difference between groups.
• Rheumatoid arthritis (RA). Oral rosemary has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research shows subjective decreases in pain associated with RA when oral formulations containing rosemary leaf extract, oleanolic acid from olive leaf, and rho iso-alpha acids from hops (NG440-2, Metagenics; Meta050, Metagenics) are used (18326,18327). The formulation used in one of these studies (Meta050, Metagenics) was taken in a dose of 440 mg three times daily for 4 weeks, then 880 mg twice daily for 4 weeks (18327). The formulation used in the other study, which was taken daily for 4 weeks, contained rosemary leaf extract 112.5 mg, oleanolic acid from olive leaf 1 mg, and rho iso-alpha acids from hops 225 mg per tablet (18326).
• Stress. It is unclear if rosemary aromatherapy is beneficial for stress. Details: Preliminary clinical research on the use of rosemary aromatherapy for anxiety and stress is conflicting. In a group of graduate nursing students, perceived stress associated with taking a test was lower when inhalers containing rosemary or lavender oil were used. Three drops of rosemary essential oil were added to an inhaler and inhaled before and during the test. Pulse rates, but not blood pressure, were also reduced (18324). In contrast, a small clinical study in adults aged 18-30 years shows that the aroma from diluted rosemary essential oil applied to the wrist during timed crossword puzzle completion actually increases subjective feelings of anxiety and tension when compared with placebo (18325).
• Sunburn. Oral rosemary has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research shows that taking a combination of rosemary and grapefruit extracts in a 1:1 ratio (NutroxSun, Monteloeder, Inc.), 250 mg orally once daily for 12 weeks, increases the amount of UV radiation needed to cause sunburn by 34% after 8 weeks and 56% after 12 weeks when compared to baseline (91728). The validity of these findings is limited by the lack of a comparator group.
• Upper respiratory tract infection (URTI). Oral rosemary has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical trial among healthy adults shows that taking a combination product containing rosemary leaf extract, aloe gel powder, and poria mushroom extract daily for 8 weeks does not reduce the frequency, duration, or severity of URTI-related symptoms when compared with placebo. However, in patients receiving an influenza vaccine midway through the study, this product does seem to improve some immune response biomarkers when compared with placebo (111921). The amount of rosemary leaf extract in the supplement was not disclosed.
• Wound healing. It is unclear if topical rosemary cream is beneficial for wound healing. Details: A moderate-sized clinical trial among primiparous adults with medio-lateral episiotomy shows that applying a cream containing rosemary extract to the wound twice daily for 10 days improves episiotomy wound healing and reduces redness and discharge when compared with placebo cream (112143). More evidence is needed to rate rosemary for these uses.

(Read more about ROSEMARY)

POSSIBLY EFFECTIVE

• Burns. Topical cream containing sea buckthorn seems to improve burn healing. Details: Clinical research in patients with second-degree burn injuries shows that topical application of sea buckthorn 40% cream once daily reduces healing time by about 4.5 days when compared with a specific cream containing silver sulfadiazine 1% (Flamexin, Sina Daru) (106091).

POSSIBLY INEFFECTIVE

• Atopic dermatitis (eczema). Neither oral nor topical sea buckthorn products seem to be beneficial for atopic dermatitis. Details: Preliminary clinical research shows that taking sea buckthorn seed and pulp oils 5 grams daily orally for 4 months may improve the severity of atopic dermatitis when compared to pretreatment; however, treatment with the same dose of sea buckthorn seed oil does not have this effect, and the effect of sea buckthorn pulp oil does not appear to be significantly different than placebo (74021). Additionally, applying sea buckthorn 10% or 20% cream topically for 4 weeks does not seem to reduce the severity of atopic dermatitis when compared with placebo in patients with mild-to-moderate atopic dermatitis (74091).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Acne. Although there is interest in using topical sea buckthorn for acne, there is insufficient reliable information about the clinical effects of sea buckthorn for this condition.
• Aging skin. Although there is interest in using oral or topical sea buckthorn for aging skin, there is insufficient reliable information about the clinical effects of sea buckthorn for this purpose.
• Asthma. Although there is interest in using oral sea buckthorn for asthma, there is insufficient reliable information about the clinical effects of sea buckthorn for this condition.
• Cancer. Although there is interest in using oral sea buckthorn for reducing morbidity related to cancer and side effects related to chemotherapy, there is insufficient reliable information about the clinical effects of sea buckthorn for these uses.
• Cirrhosis. It is unclear if oral sea buckthorn is beneficial for patients with cirrhosis. Details: Preliminary clinical research shows that taking sea buckthorn extract 15 grams three times daily for 6 months might reduce liver enzymes and markers of liver inflammation in patients with cirrhosis when compared with a control group taking vitamin B complex (16694).
• Common cold. It is unclear if oral sea buckthorn is beneficial for preventing or treating the common cold. Details: Clinical research in healthy volunteers shows that consuming sea buckthorn berries 28 grams daily in frozen puree for 90 days does not reduce the risk of developing the common cold or reduce the duration of symptoms of the common cold when compared with placebo (16692).
• Diabetes. Although there is interest in using oral sea buckthorn for diabetes, there is insufficient reliable information about the clinical effects of sea buckthorn for this condition.
• Dry eye. It is unclear if oral or topical sea buckthorn is beneficial for dry eye. Details: Preliminary clinical research in adults with dry eye shows that taking a specific sea buckthorn seed and pulp oil product (Omega-7, Aromtech Ltd.) 1 gram orally twice daily for 3 months reduces subjective assessments of eye redness and burning and reduces tear film osmolarity when compared with placebo (17406,74069). Preliminary clinical research also shows that using an eyelid spray containing sea buckthorn seed oil 0.4% and sodium hyaluronate 0.02% (Aromtech Ltd., and Finnsusp Ltd.) four times daily for 1.5 months reduces symptoms of dryness and watering by a small amount when compared to a control spray. However, there was no effect on feelings of grittiness, burning, redness, or other symptoms (102845).
• Dry skin. Although there is interest in using topical sea buckthorn for dry skin, there is insufficient reliable information about the clinical effects of sea buckthorn for this condition.
• Dyslipidemia. It is unclear if oral sea buckthorn is beneficial for hyperlipidemia. Details: Some clinical research shows that sea buckthorn berries and extracts can improve the lipid profile in people with hyperlipidemia and/or nonalcoholic fatty liver disease (NAFLD). In a meta-analysis of 11 studies from China and Finland, consuming sea buckthorn berries or extracts for between 12 days and 4 months decreased total cholesterol and low-density lipoprotein (LDL) cholesterol by about 24 mg/dL and triglycerides by about 41 mg/dL and increased high-density lipoprotein (HDL) cholesterol by about 10 mg/dL when compared with baseline or a control group (96555). The sea buckthorn doses and formulations used in these studies were not identified. Additionally, a very small clinical study in females aged 50-61 with hypercholesterolemia shows that drinking sea buckhorn juice (ZAMIO, Ltd) 100% 50 mL daily for 8 weeks modestly improves HDL by about 2 mg/dL and LDL by 10 mg/dL, but does not impact total cholesterol or triglycerides when compared to baseline (112171). However, the validity of these findings is limited by the lack of a comparator group. In contrast, clinical research in patients with hypercholesterolemia shows that taking sea buckthorn puree 30 grams three times daily for 90 days does not improve lipid markers or blood pressure when compared with placebo (106090).
• Dyspepsia. It is unclear if oral sea buckthorn is beneficial for dyspepsia. Details: Preliminary clinical research shows that taking sea buckthorn dry emulsion (prepared with the fruit juice and oil) daily for 8 weeks increases levels of the appetite regulators leptin and neuropeptide Y, which tend to be lower in children with functional dyspepsia; however, sea buckthorn does not appear to improve gastric emptying rates in these patients. Doses were administered according to age: 2.5 grams twice daily for children aged 1-3 years, 5 grams twice daily for children aged 4-6 years old, and 7.5 grams twice daily for children aged 7 years (94800).
• Gout. Although there is interest in using oral sea buckthorn for gout, there is insufficient reliable information about the clinical effects of sea buckthorn for this condition.
• Hypertension. It is unclear if oral sea buckthorn is beneficial for hypertension. Details: A meta-analysis of preliminary clinical research in patients with essential hypertension shows that taking sea buckthorn flavones 10-30 mg three times daily for 1-8 months reduces systolic and diastolic blood pressure to a similar extent as calcium channel blockers and angiotensin converting enzyme (ACE) inhibitors (74090).
• Impaired glucose tolerance (prediabetes). It is unclear if oral sea buckthorn is beneficial for prediabetes. Details: A small clinical trial in patients with impaired glucose tolerance shows that taking sea buckthorn fruit puree 90 mL daily in three divided doses for 5 weeks modestly reduces fasting levels of blood glucose when compared with taking placebo. There was no effect on postprandial glucose levels or blood pressure (106088).
• Kidney failure. It is unclear if oral sea buckthorn oil is beneficial for patients on hemodialysis. Details: Preliminary clinical research shows that taking sea buckthorn oil 2 grams daily for 8 weeks does not improve levels of urea, creatinine, or calcium, reduce markers of inflammation, or improve salivary flow rate when compared with placebo in patients with chronic kidney disease (CKD) who are receiving hemodialysis (94798).
• Melasma. Although there is interest in using topical sea buckthorn for melasma, there is insufficient reliable information about the clinical effects of sea buckthorn for this condition.
• Nephrotic syndrome. It is unclear if oral sea buckthorn is beneficial for nephrotic syndrome. Details: Preliminary clinical research in patients with idiopathic nephrotic syndrome shows that taking hydroalcoholic extract of sea buckthorn 350 mg orally twice daily for 3 months in addition to standard therapy reduces edema, anorexia, and the extent of proteinuria when compared to baseline. It is unclear if the effects of sea buckthorn plus standard therapy are significantly better than the effects of standard therapy alone (94799).
• Obesity. It is unclear if oral sea buckthorn is beneficial for obesity. Details: Preliminary clinical research shows that taking sea buckthorn berries, berry oil, or phenolic alcoholic extract does not reduce body weight in overweight or obese females, although it seems to reduce low-density lipoprotein (LDL) cholesterol (35463,94796).
• Peptic ulcers. Although there is interest in using oral sea buckthorn for peptic ulcers, there is insufficient reliable information about the clinical effects of sea buckthorn for this condition.
• Psoriasis. It is unclear if topical sea buckthorn is beneficial for psoriasis. Details: One small clinical study in patients with previously untreated psoriasis shows that topically applying an unknown amount of sea buckthorn fruit extract suspended in corn oil twice daily for 8 weeks reduces the severity of psoriasis lesions when compared with corn oil alone (102844).
• Radiation dermatitis. Although there is interest in using topical sea buckthorn for radiation dermatitis, there is insufficient reliable information about the clinical effects of sea buckthorn for this condition.
• Rheumatoid arthritis (RA). Although there is interest in using oral sea buckthorn for RA, there is insufficient reliable information about the clinical effects of sea buckthorn for this condition.
• Sunburn. Although there is interest in using topical sea buckthorn for sunburn prevention, there is insufficient reliable information about the clinical effects of sea buckthorn for this condition.
• Vaginal atrophy. It is unclear if oral or intravaginal sea buckthorn is beneficial for vaginal atrophy. Details: Preliminary clinical research shows that taking 3 grams of sea buckthorn oil daily for 3 months does not improve vaginal dryness, itching, burning, pH, or elasticity when compared with placebo in postmenopausal individuals with vaginal atrophy (94797). Topical sea buckthorn oil has also been evaluated, in combination with other ingredients. Clinical research in adults with postmenopausal vulvovaginal atrophy shows that intravaginal application of a specific gel (Meclon Idra Alfasigma, Giellepi) containing sea buckthorn oil, aloe vera, 18-beta-glycyrrhetic acid, hyaluronic acid, and glycogen modestly improves sexual function and reduces vaginal pain, dyspareunia, and symptoms such as vaginal dryness, itching, and burning when compared with a placebo gel. The gel was used daily for 14 days and then twice weekly for 60 days after a 2-week washout (106089). It is unclear if these benefits are due to sea buckthorn oil, other ingredients, or the combination.
• Wound healing. Although there is interest in using topical sea buckthorn for healing of pressure ulcers, skin ulcers, or other wounds, there is insufficient reliable information about the clinical effects of sea buckthorn for this purpose.
• Wrinkled skin. Oral sea buckthorn oil has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in people with facial photodamage and severe fine wrinkling shows that taking a specific combination product (GliSODin Skin Nutrients Advanced Anti-Aging Formula, Isocell North America Inc.) as one capsule orally three times daily for 90 days, in addition to applying tazarotene 0.1% cream, improves the appearance of wrinkles, hyperpigmentation, and photodamage when compared with using tazarotene 0.1% cream alone. Three capsules of this product contain sea buckthorn berry oil 200 mg, krill oil 600 mg, zinc 10 mg, vitamin D 400 IU, cacao bean extract 100 mg, hyaluronic acid 30 mg, red clover flower isoflavones 30 mg, and a specific proprietary ingredient called GliSODin 500 mg (91778). It is not clear if these effects are due to sea buckthorn, the other ingredients, or the combination. More evidence is needed to rate sea buckthorn for these uses.

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LIKELY SAFE ...when the flower preparations are used orally or topically and appropriately (4,19779,36931,39503,93552,93557,96647,105088).

PREGNANCY: LIKELY UNSAFE
when used orally; contraindicated due to spermatocide, antiblastocyst, and abortifacient effects. There is insufficient reliable information available about the safety of calendula when used topically during pregnancy (4).

LACTATION:
Insufficient reliable information available; avoid using.

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LIKELY SAFE ...when used orally in amounts typically found in foods. Rosemary has Generally Recognized as Safe (GRAS) status in the US (4912).

POSSIBLY SAFE ...when the leaf is used orally and appropriately in medicinal amounts (18). Powdered rosemary leaf has been used with apparent safety as a single dose of up to 1.5 grams (18246,91731) or at a dose of 1-4 grams daily for up to 8 weeks (91727,98536,105327,109561). ...when the essential oil is used topically and appropriately for up to 7 months (5177,91729,109560). ...when the essential oil is used by inhalation as aromatherapy, short-term (7107,18323,105324,109559).

LIKELY UNSAFE ...when the essential oil or very large quantities of rosemary leaf are used orally. Ingestion of undiluted rosemary oil or very large quantities of rosemary leaf can cause serious adverse effects (18,515).

PREGNANCY: POSSIBLY UNSAFE
when used orally in medicinal amounts. Rosemary might have uterine and menstrual flow stimulant effects (4,12,18), and might increase metabolism of estradiol and estrone (18331); avoid using. There is insufficient reliable information available about the safety of rosemary when used topically during pregnancy.

LACTATION:
There is insufficient reliable information available about the safety of using rosemary in medicinal amounts during lactation; avoid using.

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LIKELY SAFE ...when sea buckthorn fruit is consumed as food. Sea buckthorn fruit is used in jams, jellies, pies, juices, and sauces (9898).

POSSIBLY SAFE ...when sea buckthorn fruit or fruit extract is used orally and appropriately for medicinal purposes. The oil extract of the fruit and seed have been used with apparent safety in doses of up to 2 grams daily for up to 3 months (16692,17406). ...when sea buckthorn fruit is used topically and appropriately. A cream containing sea buckthorn fruit 40% daily has been used with apparent safety for up to 13 days (106091). There is insufficient reliable information available about the safety of sea buckthorn leaf or leaf extracts when used orally or topically.

CHILDREN: POSSIBLY SAFE
when used orally and appropriately for medicinal purposes. Sea buckthorn dry emulsion (prepared with the fruit juice and oil) 5-15 grams daily for 8 weeks has been used with apparent safety in children 1-7 years of age (94800).

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

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CNS DEPRESSANTS Interaction Rating = Minor Be watchful with this combination. Severity = Moderate •  Occurrence = Unlikely •  Level of Evidence = D Theoretically, calendula might have additive effects when used with CNS depressants, although this appears to be unlikely.  Details Although some animal research has suggested that a saponoside constituent in calendula may have sedative effects (39545,39547), calendula has been used for over 30 years without reports of sedation in humans (105088).

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ANTICOAGULANT/ANTIPLATELET DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, rosemary may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.  Details In vitro and animal research suggests that rosemary inhibits platelet aggregation (18334,18335,18336,18337).

ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = B Theoretically, taking rosemary with antidiabetes drugs might increase the risk of hypoglycemia.  Details Animal research shows that rosemary extract can decrease blood glucose levels in diabetic models (71821,71923). However, research in humans is conflicting. Although rosemary powder decreased blood glucose levels in healthy adults (105327), no change in blood glucose levels was seen in adults with type 2 diabetes, most of whom were taking antidiabetes drugs (105323,105327).

ASPIRIN Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, rosemary might have additive effects with salicylate-containing drugs such as aspirin.  Details Rosemary is reported to contain salicylates (18330).

CHOLINE MAGNESIUM TRISALICYLATE (Trilisate) Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, rosemary might have additive effects with salicylate-containing drugs such as choline magnesium trisalicylate.  Details Rosemary is reported to contain salicylate (18330).

CYTOCHROME P450 1A1 (CYP1A1) SUBSTRATES Interaction Rating = Minor Be watchful with this combination. Severity = Moderate •  Occurrence = Unlikely •  Level of Evidence = D Theoretically, rosemary might decrease the levels and clinical effects of CYP1A1 substrates.  Details In vitro research shows that rosemary induces CYP1A1 enzymes (18332,18333). This effect has not been reported in humans.

CYTOCHROME P450 1A2 (CYP1A2) SUBSTRATES Interaction Rating = Minor Be watchful with this combination. Severity = Moderate •  Occurrence = Unlikely •  Level of Evidence = D Theoretically, rosemary might decrease the levels and clinical effects of CYP1A2 substrates.  Details In vitro research shows that rosemary induces CYP1A2 enzymes (18332,18333). This effect has not been reported in humans.

SALSALATE (Disalcid) Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, rosemary might have additive effects with salicylate-containing drugs such as salsalate.  Details Rosemary is reported to contain salicylate (18330).

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ANTICOAGULANT/ANTIPLATELET DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = B Theoretically, sea buckthorn may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.  Details Clinical research suggests that sea buckthorn fruit extracts can inhibit platelet aggregation and adhesion to collagen and fibrinogen (10208,96554).

ANTIHYPERTENSIVE DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking sea buckthorn with antihypertensive drugs might increase the risk of hypotension.  Details Taking sea buckthorn appears to reduce blood pressure in some patients (74090).

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General ...Orally and topically, calendula is generally well tolerated.
Serious Adverse Effects (Rare):
All ROAs: Allergic reactions.

Dermatologic ...Topically, a preparation containing calendula powder 0. 1% resulted in inflammation around the wound to which it was applied (96647). Burning sensation, itching, redness, and scaling were reported rarely in patients applying a combination of calendula, licorice, and snail secretion filtrate to the face. The specific role of calendula is unclear (110322).

Immunologic ...Orally, calendula can cause allergic reactions. Topically, calendula can cause eczematous allergic reactions. Calendula-specific patch testing is recommended prior to usage to determine allergenic potential. Testing is particularly necessary in individuals sensitive to the Asteraceae/Compositae family (10691,11458,96647). Members of this family include ragweed, chrysanthemums, marigolds, daisies, and many other herbs. A preparation containing calendula powder 0.1% resulted in hives in a patient with a ragweed allergy (96647). Despite the widespread use of calendula and the occurrence of allergies to other family members, there has been only one report of anaphylaxis (11152).

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General ...Orally, rosemary seems to be well tolerated when used in appropriate medicinal amounts. Undiluted rosemary oil or very large quantities of rosemary leaf should not be consumed. Topically and as aromatherapy, rosemary seems to be well tolerated.

Dermatologic ...Topically, rosemary use can lead to photosensitivity, erythema, dermatitis, and cheilitis in hypersensitive individuals (4,6).

Immunologic ...Topically, allergic reactions can occur. When used in the mouth, lip and gum edema have occurred (101173). When used on the skin, allergic contact dermatitis has occurred, likely due to the constituent carnosol (71715,71924,71926).
Rosemary might also cause occupational asthma. A case of occupational asthma caused by several aromatic herbs including thyme, rosemary, bay leaf, and garlic has been reported. The diagnosis was confirmed by inhalation challenges. Although all of the herbs caused immediate skin reactivity, a radioallergosorbent test (RAST) showed that garlic was the most potent allergen by weight, with rosemary and the other herbs showing less reactivity (783).

Neurologic/CNS ...Orally, the undiluted oil, as well as the camphor constituent of rosemary, might cause seizures (4,5,6,12868).

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General ...Orally, sea buckthorn is well tolerated. Topically, sea buckthorn fruit seems to be well tolerated.
Most Common Adverse Effects:
Topically: Irritation and rash.

Dermatologic ...Orally, high doses of sea buckthorn may cause yellow staining of the skin. One case of generalized yellow skin has been reported for a patient who consumed sea buckthorn 100 grams daily for 6 months (74072). Topically, sea buckthorn oil has been associated with dryness, irritation, redness, and rash (74077,102845). Rash occurred in 4% of patients in one clinical study (74077). When used intravaginally, severe burning and itching have been reported rarely (106089).

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