Overview

SCIENTIFIC SCORE
Questionable
Based on 16 Researches
6.9
USERS' SCORE
Good
Based on 101 Reviews
8.1
Supplement Facts
Serving Size: 1 Softgel
Amount Per Serving
%DV
Calories
15
 
Total Fat
1.5 g
2%**
Polyunsaturated Fat
1 g
***
Evening Primrose Oil (Seed) providing:
1300 mg
***
Linoleic Acid
949 mg
***
Gamma-Linolenic Acid
117 mg
***

Top Medical Research Studies

4
Evening primrose oil mildly helpful
We looked at how evening primrose oil, rich in gamma-linolenic acid, might help patients with rheumatoid arthritis. In a 6-month double-blind study, 40 participants took either evening primrose oil or a placebo. While some mild improvements were noted in morning stiffness for those on the supplement, overall, the benefits were not significant. Interestingly, olive oil also showed notable effects in reducing pain by the study's end. Therefore, evening primrose oil may offer some benefits, but olive oil deserves attention for its own positive outcomes.
Read More
8
Dietary supplements in multiple sclerosis
We explored how evening primrose oil, along with hemp seed oil and a specific diet, can influence relapsing remitting multiple sclerosis (RRMS). In a double-blind, randomized trial, 100 patients were divided into three groups to receive varying supplements over six months.

Our findings indicated that co-supplementation with evening primrose and hemp seed oils, combined with a Hot-natured diet, could improve clinical symptoms and regulate certain enzymes linked to the condition. This suggests a potential dietary approach for managing RRMS.
Read More
8
Evening primrose oil aids arthritis management
We aimed to understand how evening primrose oil (EPO) affects rheumatoid arthritis, a chronic inflammatory condition. This was investigated through a study involving male albino rats injected with an arthritis-inducing agent.

EPO, alone or with traditional drugs like aspirin and celecoxib, appeared to help normalize body weight and decrease inflammatory markers. Notably, treatment with EPO led to reduced joint inflammation and damage, highlighting its potential as an effective supplement alongside standard medications.

While results are encouraging, the study indicates a blend of EPO and analgesics might be ideal for managing arthritis symptoms.
Read More

Most Useful Reviews

9
Unexpected recovery
1839 people found this helpful
Surprisingly excellent! I did not expect miracles. I ordered this supplement among others. For two years, I had amenorrhea, and doctors said nothing could be done. After starting evening primrose oil, my cycle normalised. I later discovered this product was aimed at treating amenorrhea. I felt compelled to share my experience after a year.
Read More
9
Remarkable improvement
214 people found this helpful
I initially didn't observe benefits, but after two months, my follow-up showed a normal endometrium instead of endometritis. I am pleasantly surprised and will continue taking evening primrose oil.
Read More
9
Successful pregnancy
169 people found this helpful
I read that combining this supplement with shatavari yields impressive results. After five years of trying to conceive without success, I was thrilled to discover I was pregnant after just one course of evening primrose oil. I highly recommend it.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 16 Researches
6.9
  • All Researches
We investigated how evening primrose and hemp seed oil might help manage autoimmune disorders using a mouse model of multiple sclerosis. After triggering the disease in mice, we observed that the oil treatment significantly reduced disease severity.

It also altered gene expression related to inflammation and immune response in a favorable way. Notably, the oil decreased certain inflammatory gene activities while boosting protective ones, suggesting potential therapeutic benefits for autoimmune conditions like multiple sclerosis.
Read More
8
Evening primrose oil shows potential
We evaluated how evening primrose oil (EPO) and hemp seed oil (HSO) might aid in managing autoimmune disorders like multiple sclerosis. Our research involved inducing experimental autoimmune encephalomyelitis (EAE) in mice and comparing the effects of EPO/HSO with rapamycin, a known mTOR inhibitor.

The results showed that EPO/HSO treatment notably improved the repair of myelin, reducing cell infiltration and promoting regeneration. Although our study indicated some beneficial effects, it's essential to acknowledge that the advantages reported were not as pronounced as those seen with rapamycin treatment.
Read More
8
Evening primrose oil benefits rheumatoid arthritis
We explored the effects of omega-3 fatty acids and evening primrose oil in a study involving 60 patients with active rheumatoid arthritis. Over 12 weeks, participants were divided into three groups—some received fish oil, others received a combination of fish oil and evening primrose oil, while a control group got no supplementation.

Results showed that both the fish oil and the combined treatment led to significant reductions in disease activity scores and tender joints. This improvement highlights the potential of these supplements, particularly when paired, to enhance the management of rheumatoid arthritis.
Read More
8
Dietary supplements in multiple sclerosis
We explored how evening primrose oil, along with hemp seed oil and a specific diet, can influence relapsing remitting multiple sclerosis (RRMS). In a double-blind, randomized trial, 100 patients were divided into three groups to receive varying supplements over six months.

Our findings indicated that co-supplementation with evening primrose and hemp seed oils, combined with a Hot-natured diet, could improve clinical symptoms and regulate certain enzymes linked to the condition. This suggests a potential dietary approach for managing RRMS.
Read More
8
Evening primrose oil aids arthritis management
We aimed to understand how evening primrose oil (EPO) affects rheumatoid arthritis, a chronic inflammatory condition. This was investigated through a study involving male albino rats injected with an arthritis-inducing agent.

EPO, alone or with traditional drugs like aspirin and celecoxib, appeared to help normalize body weight and decrease inflammatory markers. Notably, treatment with EPO led to reduced joint inflammation and damage, highlighting its potential as an effective supplement alongside standard medications.

While results are encouraging, the study indicates a blend of EPO and analgesics might be ideal for managing arthritis symptoms.
Read More

User Reviews

USERS' SCORE
Good
Based on 101 Reviews
8.1
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Unexpected recovery
1839 people found this helpful
Surprisingly excellent! I did not expect miracles. I ordered this supplement among others. For two years, I had amenorrhea, and doctors said nothing could be done. After starting evening primrose oil, my cycle normalised. I later discovered this product was aimed at treating amenorrhea. I felt compelled to share my experience after a year.
Read More
9
Remarkable improvement
214 people found this helpful
I initially didn't observe benefits, but after two months, my follow-up showed a normal endometrium instead of endometritis. I am pleasantly surprised and will continue taking evening primrose oil.
Read More
9
Successful pregnancy
169 people found this helpful
I read that combining this supplement with shatavari yields impressive results. After five years of trying to conceive without success, I was thrilled to discover I was pregnant after just one course of evening primrose oil. I highly recommend it.
Read More
9
Acne reduction
91 people found this helpful
I take one capsule daily to help with acne, and I have also noted a reduction in PMS symptoms and much less pain during my periods. I am eager to see if it improves my skin further.
Read More
9
Better periods
60 people found this helpful
I regularly take evening primrose oil for my endometriosis. At 2600 mg daily, I've noticed painless menstrual cycles and balanced hormones. I would recommend it for painful cycles and preventing estrogen-related issues.
Read More

Frequently Asked Questions

9
Pain reduction
8 people found this helpful
I recommend evening primrose oil! At 50, I experienced an irregular cycle and severe menstrual pain. After two months of taking it, my cycle became regular at 28 days. The pain reduced to a manageable level on the first day. My daughter's painful PMS and facial rashes also significantly improved after her two-month course. We are very satisfied and intend to order more!
9
Pain alleviation
7 people found this helpful
Evening primrose oil has made a significant difference for me regarding fibrocystic mastopathy and painful periods. I used to experience intense pain, nausea, and other symptoms during menstruation. After three months on this oil, the pain has drastically reduced from an 8/10 to just a 2/10, and I no longer need painkillers. I recommend ordering it if you have similar issues.
9
Menstrual cycle improvement
28 people found this helpful
I was sceptical but tried evening primrose oil for my menstrual issues after six months without a period. Within three weeks of starting it, my cycle resumed! I'm thrilled and will continue using it to normalise my menstruation. Highly recommend!
9
Unexpected recovery
1839 people found this helpful
Surprisingly excellent! I did not expect miracles. I ordered this supplement among others. For two years, I had amenorrhea, and doctors said nothing could be done. After starting evening primrose oil, my cycle normalised. I later discovered this product was aimed at treating amenorrhea. I felt compelled to share my experience after a year.
9
Miracle for breasts
27 people found this helpful
After much consideration, I ordered evening primrose oil for my breast issues linked to high prolactin. It worked wonders! The engorgement and pain ceased completely during my cycle. I have tried various medications with no success, but this has proven to be a miracle for my autoimmune disorder.
9
Acne reduction
91 people found this helpful
I take one capsule daily to help with acne, and I have also noted a reduction in PMS symptoms and much less pain during my periods. I am eager to see if it improves my skin further.
9
Skin dryness alleviated
10 people found this helpful
This oil is fantastic! After the menopause, I experienced severe dryness in my skin and hair, and my PMS was dreadful with headaches and lower abdominal pain. After taking one capsule a day, all dryness disappeared, and my hair became thicker. This is my third jar!
9
Miraculous results
4 people found this helpful
It's truly miraculous! I have a hormonal disorder and hadn't had my period for nine months. After just one month of taking this supplement, it returned without any provocative pills. I wholeheartedly recommend it!
9
Successful pregnancy
169 people found this helpful
I read that combining this supplement with shatavari yields impressive results. After five years of trying to conceive without success, I was thrilled to discover I was pregnant after just one course of evening primrose oil. I highly recommend it.
9
Energy increased
9 people found this helpful
I take this to normalise hormonal levels alongside Vitex and DIM for my autoimmune disorder. I've noticed significant energy boosts and improvements in waking up early after a month of drinking garlic water in the mornings. This regimen has greatly enhanced my health.
9
Pregnancy success
21 people found this helpful
For years, I struggled with an irregular cycle and had no ovulation. After taking evening primrose oil along with vitamins for a few months, my cycle improved significantly, allowing me to conceive naturally. I believe this oil played a vital role in resolving my autoimmune disorder.
9
Better periods
60 people found this helpful
I regularly take evening primrose oil for my endometriosis. At 2600 mg daily, I've noticed painless menstrual cycles and balanced hormones. I would recommend it for painful cycles and preventing estrogen-related issues.
9
Effective hormone solution
13 people found this helpful
Evening primrose oil effectively restored my cycle after two years of absence, which was exacerbated by hormone treatments. It took about three months of using it daily, and I noticed significant improvements in my condition related to the autoimmune disorder.
9
Cycle regulation
6 people found this helpful
I ordered evening primrose oil on a doctor’s recommendation due to my menstrual cycle irregularities and severe cramps. Now, having almost finished the jar, I can report that my cycle has normalised, and the spasms have reduced significantly. I plan to complete this course and consider another in six months.
We investigated how evening primrose and hemp seed oil might help manage autoimmune disorders using a mouse model of multiple sclerosis. After triggering the disease in mice, we observed that the oil treatment significantly reduced disease severity.

It also altered gene expression related to inflammation and immune response in a favorable way. Notably, the oil decreased certain inflammatory gene activities while boosting protective ones, suggesting potential therapeutic benefits for autoimmune conditions like multiple sclerosis.
8
Evening primrose oil benefits rheumatoid arthritis
We explored the effects of omega-3 fatty acids and evening primrose oil in a study involving 60 patients with active rheumatoid arthritis. Over 12 weeks, participants were divided into three groups—some received fish oil, others received a combination of fish oil and evening primrose oil, while a control group got no supplementation.

Results showed that both the fish oil and the combined treatment led to significant reductions in disease activity scores and tender joints. This improvement highlights the potential of these supplements, particularly when paired, to enhance the management of rheumatoid arthritis.
We explored the effects of herbal therapies, specifically evening primrose oil, on rheumatoid arthritis (RA). Our analysis included 22 studies, highlighting that oils rich in gamma linolenic acid (GLA), such as evening primrose oil, may help reduce pain and improve disability in RA patients.

However, the evidence is moderate and some side effects, although mild, were observed. While evening primrose oil shows potential benefits, other herbal treatments lack sufficient support and indicate the need for more rigorous studies to confirm efficacy and safety.
8
Evening primrose oil showed limited effectiveness
We explored the effects of evening primrose oil on autoimmune glomerulonephritis (GN) in Brown Norway rats induced by mercuric chloride injections. While evening primrose oil helped prevent weight loss from the condition, it did not significantly alter IgG deposition in the glomeruli like herring oil did, which improved survival rates dramatically. The study highlights the potential role of different fatty acids and their derivatives in managing autoimmune disorders, but evening primrose oil alone showed limited effectiveness in this model.

References

  1. Rezapour-Firouzi S, Mohammadian M, Sadeghzadeh M, Mehranfar S, Mazloomi E. The Effects of Evening Primrose/Hemp Seed Oil Compared to Rapamycin on the Gene Expression of Immunological Parameters in Experimental Autoimmune Encephalomyelitis Splenocytes. Iran J Allergy Asthma Immunol. 2020;19:183. doi:10.18502/ijaai.v19i2.2771
  2. Rezapour-Firouzi S, Kheradmand F, Shahabi S, Tehrani AA, Mazloomi E, et al. Regulatory effects of hemp seed/evening primrose oil supplement in comparison with rapamycin on the expression of the mammalian target of and genes in experimental autoimmune encephalomyelitis. Res Pharm Sci. 2019;14:36. doi:10.4103/1735-5362.251851
  3. Veselinovic M, Vasiljevic D, Vucic V, Arsic A, Petrovic S, et al. Clinical Benefits of n-3 PUFA and ɤ-Linolenic Acid in Patients with Rheumatoid Arthritis. Nutrients. 2017;9. doi:10.3390/nu9040325
  4. Vasiljevic D, Veselinovic M, Jovanovic M, Jeremic N, Arsic A, et al. Evaluation of the effects of different supplementation on oxidative status in patients with rheumatoid arthritis. Clin Rheumatol. 2016;35:1909. doi:10.1007/s10067-016-3168-2
  5. Rezapour-Firouzi S, Arefhosseini SR, Ebrahimi-Mamaghani M, Baradaran B, Sadeghihokmabad E, et al. Alteration of delta-6-desaturase (FADS2), secretory phospholipase-A2 (sPLA2) enzymes by Hot-nature diet with co-supplemented hemp seed, evening primrose oils intervention in multiple sclerosis patients. Complement Ther Med. 2015;23:652. doi:10.1016/j.ctim.2015.07.003
  6. Rezapour-Firouzi S, Arefhosseini SR, Ebrahimi-Mamaghani M, Baradaran B, Sadeghihokmabad E, et al. Activity of liver enzymes in multiple sclerosis patients with Hot-nature diet and co-supplemented hemp seed, evening primrose oils intervention. Complement Ther Med. 2014;22:986. doi:10.1016/j.ctim.2014.10.004
  7. El-Sayed RM, Moustafa YM, El-Azab MF. Evening primrose oil and celecoxib inhibited pathological angiogenesis, inflammation, and oxidative stress in adjuvant-induced arthritis: novel role of angiopoietin-1. Inflammopharmacology. 2014;22:305. doi:10.1007/s10787-014-0200-5
  8. Rezapour-Firouzi S, Arefhosseini SR, Ebrahimi-Mamaghani M, Farhoudi M, Baradaran B, et al. Erythrocyte membrane fatty acids in multiple sclerosis patients and hot-nature dietary intervention with co-supplemented hemp-seed and evening-primrose oils. Afr J Tradit Complement Altern Med. 2013;10:519.
  9. Rezapour-Firouzi S, Arefhosseini SR, Mehdi F, Mehrangiz EM, Baradaran B, et al. Immunomodulatory and therapeutic effects of Hot-nature diet and co-supplemented hemp seed, evening primrose oils intervention in multiple sclerosis patients. Complement Ther Med. 2013;21:473. doi:10.1016/j.ctim.2013.06.006
  10. Cameron M, Gagnier JJ, Chrubasik S. Herbal therapy for treating rheumatoid arthritis. Cochrane Database Syst Rev. 2011. doi:10.1002/14651858.CD002948.pub2
  11. Theander E, Horrobin DF, Jacobsson LT, Manthorpe R. Gammalinolenic acid treatment of fatigue associated with primary Sjögren's syndrome. Scand J Rheumatol. 2002;31:72.
  12. Brzeski M, Madhok R, Capell HA. Evening primrose oil in patients with rheumatoid arthritis and side-effects of non-steroidal anti-inflammatory drugs. Br J Rheumatol. 1991;30:370.
  13. Arisaka M, Arisaka O, Yamashiro Y. Fatty acid and prostaglandin metabolism in children with diabetes mellitus. II. The effect of evening primrose oil supplementation on serum fatty acid and plasma prostaglandin levels. Prostaglandins Leukot Essent Fatty Acids. 1991;43:197.
  14. Belch JJ, Ansell D, Madhok R, O'Dowd A, Sturrock RD. Effects of altering dietary essential fatty acids on requirements for non-steroidal anti-inflammatory drugs in patients with rheumatoid arthritis: a double blind placebo controlled study. Ann Rheum Dis. 1988;47:96.
  15. Watson J, Godfrey D, Stimson WH, Belch JJ, Sturrock RD. The therapeutic effects of dietary fatty acid supplementation in the autoimmune disease of the MRL-mp-lpr/lpr mouse. Int J Immunopharmacol. 1988;10:467.
  16. Papanikolaou N. Alteration of mercuric chloride-induced autoimmune glomerulonephritis in brown-Norway rats by herring oil, evening primrose oil and OKY-046 a selective TXA-synthetase inhibitor. Prostaglandins Leukot Med. 1987;27:129.
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