Cold-pressed and refined evening primrose oil require different supplier capabilities and deliver different GLA concentrations in the final product. Evening primrose oil suppliers on Nutrada list both types from GFSI-certified facilities, filterable by origin, certification, and processing method.
| Value | Description |
| Botanical name | Oenothera biennis |
| Available forms | Cold-pressed oil, softgel capsule-grade |
| Origins | China, Canada, UK, Germany, The Netherlands |
| Certifications | GFSI (BRCGS, IFS, FSSC 22000), EU Organic, USDA NOP, Kosher, Halal |
| Common applications | Women's health supplements, skin condition supplements, anti-inflammatory cosmetics |
| Packaging | Jerry cans, Drums, IBCs, Tanks |
| MOQ | 180kg |
| Category | Oils Wholesale |
| Form | What it means for procurement | Typical application |
| Cold-pressed | 8-10% GLA content, minimal processing, retains natural compounds | Premium dietary supplements, therapeutic applications |
| Softgel capsule-grade | Refined for stability, standardized viscosity, extended shelf life | Mass market nutraceuticals, private label capsules |
Chinese seed harvest runs August to September, with production concentrated in Inner Mongolia and Heilongjiang provinces creating significant supply concentration risk during adverse weather events. Canadian evening primrose cultivation in Alberta and Saskatchewan benefits from extended daylight hours that naturally enhance GLA content, with harvest extending through October. European processing facilities in the UK, Germany, and The Netherlands handle both domestic and imported seed, providing secondary oil production closer to end markets. Evening primrose oil imports are regulated under Regulation (EC) No 396/2005 for pesticide maximum residue limits and must comply with PAH contaminant limits specified for vegetable oils.
Evening primrose oil oxidizes rapidly when exposed to light and oxygen, requiring nitrogen-flushed packaging and storage below 15 degrees Celsius. Bulk formats include 180kg drums and 1000L IBCs, both with dark-colored containers to prevent light degradation. Buyers must confirm GLA percentage, peroxide value below 10 meq/kg, and free fatty acid content under 1% before finalizing orders. Shelf life reaches 12-18 months under proper nitrogen atmosphere storage.
China and Canada both offer EU Organic and USDA NOP certified evening primrose seed supply, though organic volumes remain limited compared to conventional production. Canadian organic producers typically achieve dual-certification more readily due to established infrastructure, while Chinese organic supply requires longer lead times for verification. Forward planning is essential for securing organic volumes during peak supplement manufacturing seasons.
Consumer formats include 500mg and 1000mg softgel capsules, 30ml and 100ml dropper bottles for direct consumption, and 50ml amber glass bottles for cosmetic applications. MOQ for private label capsules starts at 10,000 units minimum, while bottled oils require 1,000-unit minimums depending on size. Buyers must specify target GLA concentration before production begins, as this affects both sourcing costs and label claims.
Manufacturers concentrate in China for seed processing and European facilities for final oil refinement, offering buyers flexibility in procurement geography. Compare borage oil specifications when formulating GLA-rich supplements, as borage delivers 20-24% GLA versus evening primrose oil's 8-10% concentration. Documentation requests should include batch-specific GLA analysis, peroxide testing, and microbiological reports for each shipment. Both evening primrose and flaxseed oil require identical nitrogen packaging and cold-chain handling to prevent oxidative damage.
Nutrada lists GFSI-certified evening primrose oil suppliers from China and Canada, covering cold-pressed and refined forms across conventional and organic supply. All orders are placed directly with certified suppliers, with no intermediary.
Last updated: Apr 10, 2026