Description
A cold-pressed and refined seed oil from Oenothera biennis (evening primrose), containing 9 to 12 percent gamma-linolenic acid (GLA) and a balanced linoleic acid profile.
Pale yellow clear oil with a mild characteristic odor. Refined, bleached, and deodorized to a clean neutral sensory profile suitable for softgel encapsulation and finished consumer products.
We supply food-grade and supplement-grade Evening Primrose Oil from manufacturers in China holding ISO, Halal, Kosher and other certifications relevant to the product and production.
Common market grades include EPO GLA 9% standard, GLA 10% premium, and GLA 12% high-concentration material derived from selected seed lines. Organic-certified Evening Primrose Oil is available on request.
Bulk and reduced-MOQ shipments. Batch-level COA covering GLA assay, full fatty acid profile, acid and peroxide values, pesticide residues, and microbiology.
Introduction
Evening primrose is a North American biennial herb introduced to Europe in the 17th century and now cultivated commercially in China, the United Kingdom, and Eastern Europe specifically for its GLA-rich seed oil.
The seed contains 17 to 25 percent oil by mass, of which 9 to 12 percent is GLA, depending on cultivar and growing conditions. Chinese production accounts for a significant share of global supply, concentrated in the northeast and northwest regions.
Seeds are cleaned, cold-pressed at controlled temperature, and the crude oil refined through alkali neutralization, bleaching, and steam deodorization to produce a clear, neutral-tasting finished oil.
Evening Primrose Oil has been used as a traditional medicinal preparation by indigenous North American peoples for centuries and has been clinically studied since the 1980s for atopic dermatitis, mastalgia, and PMS, with mixed results that nonetheless continue to support a substantial consumer supplement market.
Oxidative stability is moderate. Antioxidant fortification with mixed tocopherols and rosemary extract is standard for softgel-grade material.
Where it is used
- Premium softgel supplements for women's health, hormonal balance, and PMS support
- Skin-health and atopic dermatitis support supplements
- Combination GLA, omega-3, and omega-9 formulations
- Dermatological and cosmetic emollient applications for dry and sensitive skin
- Functional food fortification in select high-end product categories
- Veterinary supplements for skin and coat support
- Pediatric and infant supplement formulations where appropriate
Technical data
| Item | Specification |
|---|---|
| Appearance | Pale yellow clear oil |
| GLA content | ≥ 10.0% |
| Linoleic acid | 70% to 75% |
| Oleic acid | 6% to 11% |
| Acid value | ≤ 2.0 mg KOH/g |
| Peroxide value | ≤ 5 meq/kg |
| Anisidine value | ≤ 10 |
| Moisture | ≤ 0.1% |
| Heavy metals (as Pb) | ≤ 0.1 mg/kg |
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