Evening Primrose Oil Benefits, Uses, Dosage, & Side Effects

What Is Evening Primrose Oil?

This oil is extracted from the seeds of evening primrose. The plant is also referred to as evening star and sun drop, and belongs to the Onagraceae family. It has yellow flowers that open at sunset and close during the day. Its leaves are used to treat stomach issues, sore throat, and hemorrhoidsⁱ  XA condition where the rectum and anus veins are swollen and irritated, resulting in pain and bleeding. . Each part of the plant is edible.

The antioxidants and omega-6 fatty acids in evening primrose oil help improve skin health and treat many ailments. Continue reading to know the oil’s health benefits.

Benefits Of Evening Primrose Oil

1. Helps Treat Acne

Evening primrose oil contains gamma-linolenic acid (GLA) that helps improve skin moisture and shows anti-aging effects by reducing water loss through skin. This omega-6 fatty acid has anti-inflammatory properties and may also improve skin barrier function (1) (2). A study suggests that a combination of omega-3, 6, and gamma-linolenic acid has the highest potential to minimize inflammatory skin conditions like acne, psoriasisⁱ  XA non-contagious autoimmune disorder where skin cells accumulate and develop into scales and dry, itchy areas. , and atopic dermatitisⁱ  XAn inflammatory, itchy skin condition usually manifests as rashes on the arms and behind the knees. (2).

Evening primrose oil was also found to treat xerotic cheilitis (chapping of lips) in people with acne who were being treated with oral isotretinoin (a retinoid) (1). However, more studies are needed in this regard.

Diana, a YouTuber, shared her experience of consuming evening primrose oil capsules to improve her cystic acne. She tried it for 4 months and said, “In that period of time i almost never got a cystic acne. There was an occasional cysts coming, but it was reduced like by 80 percent. My skin overall improved a little bit (i).”

2. May Ease Atopic Dermatitis

Evening primrose oil contains 72% linoleic acid and 10% gamma-linolenic acid. Its oral supplementation may reduce eczema or atopic dermatitis (red and itchy skin) (3). A review published in Annals of Dermatology also backs this claim (4). However, not all studies have shown similar results. Hence, further trials are needed.

3. May Relieve PMS Symptoms

Taking two capsules (500 mg) of evening primrose oil twice a day for six weeks was found to decrease the intensity of hot flashes (5). Similarly, a review published in the Journal of Menopausal Medicine found that taking 1000 mg capsules twice a day may reduce the frequency and severity of night sweats (6). The gamma-linolenic acid in evening primrose oil may also treat depression, irritability, and breast pain and tenderness associated with premenstrual syndrome (7). Besides, taking a supplement containing vitamin E, vitamin B6, and evening primrose oil may also relieve PMS symptoms (8).

4. May Improve Heart Health

Supplementing evening primrose oil through diet was shown to decrease vascular thrombogenesis (blockage in blood vessels) in rabbits (9). Besides, the omega-6 fatty acids in evening primrose oil are also known to reduce the risk of cardiovascular disease. The oil was found to improve cardiac recovery in hypercholesterolemic (high blood cholesterol levels) rats (10). However, more human studies are warranted to understand this benefit of evening primrose oil.

5. May Minimize Nerve Pain

Nerve pain is commonly associated with diabetic neuropathy. Ingesting 360 mg of gamma-linolenic acid may help prevent and treat diabetic polyneuropathy (11). The omega-6 fatty acid and linolenic acid in evening primrose oil may also treat nerve disturbances (12). Besides, linolenic acid deficiency may cause weakness, numbness, blurred vision, and inability to walk (13).

6. May Reduce Osteoporosis Risk

Experts predict that osteoporosis-related fractures may increase health care expenditure by 25.3 billion dollars by 2025 (14). A diet rich in polyunsaturated fats (PUFAs) may help reduce the risk of osteoporosis in women post menopause who are on hormonal therapy (15). Evening primrose oil is rich in these fats and linolenic acid, and was found to improve bone mineral density among older people (16). Besides, a combination of evening primrose, fish oil, and calcium may improve bone density and decrease bone loss (17). However, more studies are warranted to understand the benefit of evening primrose oil.

7. May Reduce Rheumatoid Arthritis Symptoms

Rheumatoid arthritis (RA) is an autoimmune and inflammatory disease that affects the joints. A study conducted by Australian Catholic University, Australia, found that gamma-linolenic acid from evening primrose oil may help relieve symptoms of rheumatoid arthritis (18). Taking 540 mg/day of gamma-linolenic acid through a diet for six months was found to improve the condition (19). Besides, the anti-inflammatory properties of evening primrose oil may help reduce the inflammation associated with rheumatoid arthritis (20).

8. Helps With Hair Growth

Evening primrose contains arachidonic acid (omega-6 polyunsaturated fatty acid), which has been found effective in promoting hair growth (21), (22). This fatty acid was shown to enhance the proliferation of follicles and their survival. However, more studies are needed to understand the benefit of evening primrose oil.

In addition, evening primrose oil can improve fatigue and quality of life in patients with multiple sclerosis (inflammatory disease of the central nervous system) (23). Also, taking a combination of evening primrose oil (3000 mg) and vitamin E (1200 IU) for six months may help reduce cyclic mastalgia (breast pain) (24).

Anecdotal evidence suggests that it may also help with skin diseases like rosacea. The vitamin E in evening primrose oil may also help boost the immune system and aid in wound healing. However, more studies are warranted to support these claims.

How do you include evening primrose oil into your skincare regimen?Here are a few steps you can follow to reap its benefits.

How To Use Evening Primrose Oil?

Evening primrose oil can be applied topically or taken as oral supplements. It can be paired with herbs or other oils to make face packs or creams. It also reduces your hair fall effectively. Use evening primrose oil supplements if your hair fall is related to hormonal imbalance or medication. Apply evening primrose oil topically if your hair loss is related to scalp issues like itching or dryness.

Note: Take an evening primrose oil supplement soon after a meal and not on an empty stomach. You need not dilute evening primrose oil. Do a patch test before using it.

Continue reading to know about the recommended dosage of evening primrose oil.

Recommended Dosage Of Evening Primrose Oil

There is no specific dosage recommended for the use of evening primrose oil. The dosage may vary based on the brand you use or your health concern. A daily intake of 500 milligrams is generally considered safe for adults. However, many people can tolerate up to 1,300 milligrams per day without any side effects. But these claims lack scientific evidence. Moreover, the oil should not be administered to children. Consult your doctor before using its supplements to avoid any potential side effects.

Note: Look for certifications like U.S. Pharmacopeia (USP), NSF International, or Consumer Lab while buying supplements.

Using excessive amounts of evening primrose oil is associated with certain side effects. What are they? Keep scrolling to know them.

Side Effects Of Evening Primrose Oil

Short-term use of evening primrose oil is generally considered safe while there are no recorded details of its long-term use. However, using an excess amount of this oil may cause headaches and gastrointestinal upset (25). It may also cause an allergic reaction in rare cases. Besides, its oral administration may increase the incidence of prolonged rupture of membranes (26).

Note: Pregnant women should avoid the use of evening primrose oil.

Some research suggests that evening primrose oil may also interact with medications like blood thinners like warfarin, antiplatelets like clopidogrel, and drugs that affect seizure thresholds (27), (28). However, more research is needed to further substantiate these claims. Individuals taking medication for seizures should exercise caution, as evening primrose oil might interfere with them and lower the seizure threshold (29).

To ensure safety, consult with a healthcare professional before taking the oil, especially if you are currently taking any prescription medications or have recently recovered from an ailment. This proactive approach can help prevent any undesirable interactions and ensure the long-term effectiveness of your treatment plan.

Frequently Asked Questions

Does evening primrose oil balance hormones?

Yes. Evening primrose oil is a rich source of gamma-linolenic acid (GLA) that contributes to hormonal balance. GLA is an essential fatty acid necessary for the synthesis of female hormones (28).

Does primrose help with weight loss?

While anecdotal evidence suggests that primrose may help with weight loss, studies show that any anti-obesity property possessed by it is clinically insignificant (30).

Does evening primrose help you sleep?

There is no evidence suggesting that primrose has sedative effects.

Discover the amazing benefits and uses of evening primrose oil. Watch the video below to learn how to use it to improve your skin, hair, and overall health.