Evening Primrose Extract

Evening Primrose Extract (CAS 90028-66-3), derived from Oenothera biennis, is a botanical ingredient used in nutrition, cosmetics, and pharmaceutical formulations for its high concentration of gamma-linolenic acid (GLA).

Where is Evening Primrose Extract used?

• Personal care: facial creams, serums, and body lotions where GLA content supports moisture retention and skin barrier function
• Nutraceuticals: softgel capsules for hormonal balance and inflammatory response support
• Food and functional nutrition: fortified oils and specialty blends with omega-6 fatty acid enrichment
• Pharmaceutical formulators use it as an active botanical ingredient in standardized preparations requiring documented GLA potency.

Good to know: Specifications conforming to BP and Ph. Eur. monographs are available for regulated pharmaceutical applications.

Commercial specifications

• GLA content typically standardized between 8–10%
• Cold-pressed or CO₂-extracted oil
• Standardized extracts in encapsulated or powder form for dry applications