Evening Primrose Oil 9% GLA stands out because of its defined fatty-acid profile, not merely because it is a vegetable oil. Its linoleic acid content is specified at 65.0%–85.0%, and gamma-linolenic acid is controlled at 8.0%–11.0%. That allows buyers to choose the material based on the GLA contribution required per softgel, serving, or cosmetic formula.
Oxidation control matters especially for this oil. According to the page, the acid value is ≤1.0 mg KOH/g, the peroxide value is ≤5.0 meq/kg, the anisidine value is ≤20.0, and moisture and volatile matter are limited to ≤0.05%. Together, these specifications give buyers a basis for judging freshness, stability during storage, and suitability for oil-based processing.
The product is also tested for residual hexane, dioxins, PAH, Benzo(a)pyrene, heavy metals, aflatoxin, and microbial indicators. Keep it in a cool, dry place away from heat and light, and store it separately from toxic, harmful, or odorous materials.
