Oenothera Biennis Seed Extract
INCI: OENOTHERA BIENNIS SEED EXTRACT
Reviewed by Emma · Last updated 14 Aug 2026
Plant extract with antioxidant properties traditionally used to support skin resilience
Best For Skin Types
All, Dry, Mature
Addresses
Usage Frequency
Daily
Oenothera Biennis Seed Extract products at Skintique
View all →
What Is Oenothera Biennis Seed Extract?
Oenothera biennis seed extract comes from the evening primrose plant, a herbaceous species native to North America. The extract is derived from the seeds and contains compounds including fatty acids and polyphenols, which have demonstrated antioxidant activity in laboratory settings.
In skincare formulations, this ingredient functions as a skin conditioner, meaning it is intended to maintain or improve the appearance and feel of the skin's surface.
How It Works
The extract's proposed mechanism centres on its polyphenol and fatty acid content, which may help neutralise free radicals generated by UV exposure and environmental stressors. This antioxidant activity could theoretically reduce oxidative damage to skin cells and support the skin's natural repair processes.
The conditioning properties help the skin retain moisture and maintain a smoother appearance, though the precise mechanism in topical application requires further investigation.
Clinical Evidence & References
Research on Oenothera biennis seed extract in skincare is limited. Animal studies have shown promise for wrinkle reduction, skin elasticity improvement, and hyaluronic acid levels when the extract was administered orally over 14 weeks in UV-damaged skin. However, these findings do not automatically translate to topical use in humans.
Most published research focuses on evening primrose oil (the fatty acid extract) rather than seed extract specifically, and evidence for topical application in humans remains sparse. The ingredient appears in approximately 0.1% of skincare products, suggesting limited widespread adoption pending additional clinical validation.
Published Research
How to Use
Oenothera biennis seed extract is typically found in creams, serums, and moisturisers. Use as directed on product labelling. As with any new skincare addition, introduce it gradually to monitor for individual tolerance, particularly if you have sensitive skin.
Safety & Precautions
Frequently Asked Questions
From the Clinic
Not sure what your skin actually needs?
Two minutes, a few questions, and we’ll point you at what matters — no guesswork.
Take the skin quizPart of a family
Oenothera Biennis Seed Extract is a variant of Oenothera Biennis Seed, the form you will most often see on an ingredients list.
A plant-derived exfoliant with potential soothing and skin-conditioning properties
Related Ingredients
Oenothera Biennis Seed
A plant-derived exfoliant with potential soothing and skin-conditioning properties
Oenothera Biennis Flower … Stem Extract
Plant extract traditionally used to support skin hydration and conditioning
Oenothera Biennis Flower Extract
A plant extract traditionally used to help balance and tone the skin
Oenothera Biennis Root Extract
A plant extract with preliminary evidence for supporting skin resilience and elasticity
Evening Primrose Oil
Also known as Oenothera biennis oil Non-fragrant plant oil
Oenothera Biennis Oil
Evening primrose oil rich in GLA for barrier repair
Learn More About Skincare Ingredients
Explore our comprehensive ingredient glossary to understand what's in your products.
Browse All IngredientsShop Our Products
Find professional skincare solutions at Skintique.