What it is
Oenothera biennis, the evening primrose, is a flowering plant whose seed oil is well known for its gamma-linolenic acid content; the extract form delivers polyphenols and other plant constituents rather than the oil itself. In cosmetics it is used to help condition skin and is positioned for its antioxidant character. It is a common botanical addition in moisturizers and sunscreens.
Safety & warnings
Evening primrose extract is generally well tolerated. It is not a recognized fragrance allergen, and the water-based extract does not carry the comedogenicity considerations sometimes attributed to plant seed oils. Sensitive individuals may rarely react to botanical extracts.
Origin & sourcing
Natural. It is derived from the evening primrose plant (Oenothera biennis), with the extract typically prepared from the aerial parts or whole plant rather than the seed oil.
Questions everyone asks
Is evening primrose extract the same as evening primrose oil?
No. The oil is pressed from the seeds and is rich in fatty acids, while this extract delivers polyphenols and other plant constituents rather than the lipid oil.
What does it do in a formula?
It serves as a botanical skin-conditioning ingredient positioned for its antioxidant character.