GLA content is clear; clinical benefits are less certain
Evening primrose oil supplies fatty acids, including gamma-linolenic acid, or GLA. It is commonly marketed for skin and menstrual or menopause-related symptoms. Knowing its fatty-acid composition helps identify the product, but that information does not establish symptom relief; clinical studies have not supported many of the familiar claims.
Read the evidence limits and sources
NCCIH finds insufficient evidence to support evening primrose oil for any health condition. It has not shown useful benefit for eczema, and breast-pain results are not better than placebo. Claims about menopause, PMS or labour should not be presented as proven outcomes for the ingredient or this product.
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