Astaxanthin

Astaxanthin (CAS 472-61-7), also marketed under the trade names Natupink and Lucantin Pink and designated E161j in the EU, is a ketocarotenoid pigment sourced from microalgae, yeast fermentation, or chemical synthesis.

It functions as a high-performance antioxidant and colorant across feed, food, nutraceutical, and cosmetic applications. In aquaculture feed, it is the primary pigmenting agent responsible for the characteristic pink-red coloration of farmed salmon and trout flesh.

This directly affects product marketability and consumer acceptance in the global seafood industry. Poultry feed manufacturers incorporate it to enhance yolk and skin pigmentation in egg and broiler production to meet specific market demands.

In nutraceutical and functional food formulations, it is used as an antioxidant active at concentrations where most carotenoids are ineffective. This unique property supports premium supplement positioning for various health and wellness brands.

Cosmetic formulators incorporate it into anti-aging creams and serums where its antioxidant activity supports product claims around skin protection. It is highly valued for its ability to improve the overall appearance and health of the skin.

The product is supplied as a synthetic oleoresin, microalgae-derived extract, or encapsulated powder. Oil suspensions and water-dispersible beadlet forms are also available for specialized feed and supplement manufacturing processes.

Standard commercial concentrations include 1%, 2.5%, 5%, and 10% in oil or beadlet form. Recognized grades include feed-grade, food-grade, and USP-grade for dietary supplement applications requiring high purity levels.