Evening primrose seed oil is a concentrated form of evening primrose oil. It comes from the seeds and typically carries more gamma-linolenic acid (GLA) than preparations made from the whole plant. People often turn to this extract to support skin health and hair condition.
A common way to take it is in a softgel with a meal that includes fat. The fat helps your body absorb the oil. Some individuals find it useful for dry skin or brittle nails, though the evidence is mixed and not conclusive.
Cautions apply. This oil may slow blood clotting. Do not use it if you take anticoagulant or antiplatelet drugs such as warfarin or aspirin. Stop taking it well before any surgery due to bleeding risk. Safety during pregnancy or breastfeeding has not been established.