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Evening Primrose Oil (EPO) is a cold-pressed seed oil from Oenothera biennis, prized in cosmetics for its high levels of Linoleic Acid (~65–75%) and rare Gamma-Linolenic Acid (GLA, ~7–10%).
Key Uses: It deeply moisturizes, repairs the skin barrier, soothes inflammation (ideal for eczema and sensitive skin), and provides antioxidant anti-aging benefits. It is also used in hair care to condition dry scalps.
Top Selling Points:
Rich in GLA: A premium, rare omega-6 fatty acid that drives powerful soothing and barrier repair.
"Dry Oil" Texture: Lightweight and fast-absorbing without a greasy feel.
Multi-Functional: Combines hydration, anti-aging, and calming properties in one natural ingredient.
Clean-Label Friendly: Plant-derived and often available in organic grades, making it perfect for natural skincare formulations.
Specifications of Evening primrose oil CAS 90028-66-3 COA:
Items | Specifications | Results |
Appearance (25℃) | Pale yellow to yellow clear transparent liquid, with the characteristic odor of evening primrose | Complies |
Relative Density | 0.9102~0.9301 | Complies |
Refractive Index: | 1.4742~1.4796 | Complies |
Acid Value | ≤1.0 | 0.45 |
Saponification Value | 180~200 | 196 |
Unsaponifiable Matter | 0.15~0.2 | 0.16 |
Heavy Metals | 10ppm | Complies |
Linoleic Acid | ≥65-73% | 70.8% |
γ-Linolenic Acid | ≥9-10% | 9.16% |
Conclusion | The product conforms to the above specifications. | |
Product Name:Evening primrose oil
CAS:90028-66-3
MF:N/A
Melting point :>110℃C
form:clear transparent liquid
color:Pale yellow to yellow
Evening Primrose Oil (EPO, 月见草油) is a cold-pressed vegetable oil from the seeds of Oenothera biennis, rich in Linoleic Acid (LA, ~65–75%) and Gamma-Linolenic Acid (GLA, ~7–10%). In cosmetic-grade applications, it functions primarily as a multi-functional emollient and skin-conditioning agent.
Main Uses in Cosmetics
Moisturizing & Barrier Repair: LA and GLA penetrate the stratum corneum, reduce transepidermal water loss (TEWL), and reinforce the skin’s lipid barrier.
Soothing & Anti-inflammatory: GLA converts to anti-inflammatory prostaglandin E1 (PGE1), calming redness, irritation, and conditions like eczema/atopic dermatitis.
Anti-aging & Antioxidant: Contains natural Vitamin E and sterols that combat free radicals, soften fine lines, and improve firmness/elasticity.
Hair & Scalp Care: Conditions dry/brittle hair, moisturizes the scalp, and helps address dandruff.
Skin Brightening (mild): Some sources note tyrosinase-inhibiting activity that may help even skin tone.
Key Selling Points for Cosmetic Grade
High GLA Content: One of the richest natural sources of GLA — a rare, premium omega-6 fatty acid that directly drives anti-inflammatory and barrier-repair benefits.
"Dry Oil" Texture: Lightweight, fast-absorbing, non-greasy feel — suitable for facial serums and oil-in-water emulsions.
Multi-target Ingredient: One raw material covers moisturizing, soothing, anti-aging, and hair care — high formulation versatility.
Natural & Clean-label Friendly: Cold-pressed, plant-derived, often available in organic-certified grades; pairs well with squalane, jojoba oil, and ceramides.
Clinically Supported: Studies show topical/oral EPO significantly improves skin moisture, elasticity, firmness, and roughness.
Ideal for Sensitive/Mature Skin: Especially effective for dry, compromised, or aging skin types.
Formulation Tips
Typical usage: 1–20% in creams/lotions; up to 5–10% in leave-on serums or hair treatments.
Add Vitamin E or rosemary extract as antioxidants to prevent oxidation of its polyunsaturated fatty acids.
Store in dark, airtight containers away from light and heat.
Also, if you have any other questions, you can contact us
FAQ From Wuhan Fortuna Chemical Co.,Ltd
Q1: Can I get a sample for free ?
A: For small QTY and low value product, we can provide sample for free exclude shipping cost. For high value sample, we will charge the basic sample cost, but we can refund all the cost if customers place order after sample test.
Q2: How to confirm the product quality before placing orders ?
A: Most of our products confirm to international standards like USP/EP/BP/JP/CP. We will provide COA/TDS/MSDS for customers to confirm the specification before placing order.
Q3: What is the payment you accept?
A: For small and low value order, we accept CreditCard, MaterCard,VISA,Western Union and T/T.For large order, we can do T/T and L/C. Any pay on delivery or pay-after are not available for us.
Q4: What is your shipment way ?
A: For less than 100kg gross weight order will ship with courier like FedEx or UPS, we support customers to place courier orders remotely by their account, we will package the goods well and wait for pick up.For more than 100kg goods, we will transport by Air or Sea according to customers' requirement.
Q5: How long is your after-sales service?
A: We accept customer’s quality complaint in three month after customer received the goods. We provide tech.support for all-life if customer place order from our company.
Q6: How do you treat quality complaint ?
A: We support customer to provide our products to any rightful third party testing organization to test our products according to the COA specification, if the test result is confirm with COA, we will take all the loss for customers.
Company Information: Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical and Intermediates, Food and Feed additives, Fine chemicals,Biochemical and Reagent, which is the members of Hubei E-commerce Chamber.
Our company has professional persons who major in chemical R&D and sicentific management, supply fine chemical products with high quality and close service, also supply custom-tailored products according to our clients' requirement.
We have a positive and self-motivated management work team with a common philosophy, caring and commitment through teamwork, our team strive to achieve success in delighting our clients and ourselves.
Since Wuhan Fortuna Chemical Co., Ltd founded, we continuously innovate our products and improve our service, sales network. Hence, we initiate the first sale mode on net in China, which is the retail trade of small package bring along wholesale of diversified management modes. Our products are exported widely to South Korea, Vietnam, Australia, Europe and South America, highly recommended by our clients.We insist on the management creed “Market is our compass, Quality is our life, Credit is our soul”. Clients’ trust is our forward power, their satisfaction is our struggling goal.
Wuhan Fortuna Chemical Co.,Ltd is a professional manufacturer which provide Evening primrose oil with good quality and best price, welcome to contact us to get COA/TDS/MSDS of Evening primrose oil.
Our Advantages:
1. Guaranteed purity;
2. Large quantity in stock;
3. Largest manufacturer;
4. Best service after shipment with email;
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