Evening Primrose Oil
Oenothera Biennis Oil
Valued for GLA content. Oxidises quickly once opened.
How solid is the pore-clogging number
Evening Primrose Oil rates 2 of 5 — fine for most, occasionally a problem for very acne-prone skin. The rating is graded established. Traceable to published comedogenicity testing and consistent across sources.
It describes the raw ingredient in isolation. In a finished product, how much is present and where it sits in the list matter just as much. Check a whole label to see it in context.