Canthaxanthin is a carotenoid pigment with an orange color. It is naturally found in a variety of foods and can also be artificially synthesized. It is mostly used as an animal feed additive to make the color of egg yolk and poultry more vivid. It is mainly used as an orange coloring agent when used in food additives.

1. Feed additives
Canthaxanthin is mainly used as an animal feed additive to make the color of egg yolk and poultry more vivid, and the color of salmon is more ruddy.

2. Food coloring
Canthaxanthin can also be used as a coloring agent in foods such as jams, candies, syrups, sauces, and carbon dioxide-containing beverages.

3. Tanning pills
Canthaxanthin is also related to sun-tanning pills, which are popular abroad. Due to the antioxidant properties of canthaxanthin, some people think that taking it can increase the skin's ability to resist ultraviolet rays. Some tanning agents use this natural pigment.