gamma-tocopherol

Gamma-tocopherol (CAS 54-28-4), also recognized as E308 and D-gamma-tocopherol, is a naturally occurring member of the vitamin E family sourced primarily from soybean and corn oils. It functions as a lipid-soluble antioxidant and stabilizer, protecting oils, fats, and active ingredients from oxidative degradation across food, feed, cosmetic, and pharmaceutical applications.

In food and nutraceutical manufacturing, E308 is used to extend the shelf life of edible oils, fat-based spreads, and encapsulated supplement blends where oxidative rancidity is a primary quality concern. Personal care formulators incorporate it into skin creams, serums, and lip products to protect lipid-rich bases and deliver moisturizing benefits to finished formulations for consumers.

In animal feed and agricultural premixes, it supports oxidative stability in fat-supplemented feed compounds and contributes to vitamin E nutritional profiles for livestock and pets. Pharmaceutical manufacturers use it as an antioxidant excipient in soft gel capsules and oil-based drug delivery systems. It is supplied as a viscous amber oil or as part of mixed tocopherol concentrates.

Standard grades include food-grade and FCC-compliant specifications, with USP and technical grades available depending on the intended application and regulatory requirements. Bulk supply is typically offered in drums or IBCs, with concentrate purity levels ranging from natural-source mixed fractions to high-purity isolated material for specialized industrial use.