What it is
Xanthophylls are a class of oxygenated carotenoids responsible for the yellow coloration of many plants, flowers, and egg yolk, with lutein being the most familiar example. In topical formulas they are valued for antioxidant properties and can lend a faint warm tint. In sunscreens they appear as minor functional or aesthetic additives rather than as active UV filters.
Safety & warnings
Xanthophylls such as lutein have a long history of dietary and topical use and are generally well tolerated. Because they are colored pigments, very high levels could impart a slight tint to the product or skin. No notable allergen or comedogenicity concerns are established for typical cosmetic use levels.
Origin & sourcing
Natural; xanthophylls are derived from plant sources such as marigold (Tagetes) flowers and other yellow plant pigments, or other carotenoid-rich botanicals.
Questions everyone asks
Is xanthophyll the same as lutein?
Lutein is the best-known xanthophyll. The INCI term xanthophyll refers to the carotenoid pigment class that includes lutein.
Why is xanthophyll added to sunscreen?
It is used for its antioxidant properties and occasionally to contribute a subtle warm color; it is not a UV filter.