What it is
Lutein is a naturally occurring xanthophyll carotenoid responsible for the yellow color of marigold flowers and many leafy plants. In cosmetic products it is used as an antioxidant and conditioning ingredient and can also impart a faint yellow tint. It functions as a supporting ingredient in sun-care formulas rather than as a UV filter.
Safety & warnings
Lutein is generally well tolerated in topical formulas and is not associated with notable irritation or sensitization at cosmetic levels. As a strongly colored pigment, it is used at low levels to avoid imparting unwanted tint.
Origin & sourcing
Natural; most commonly obtained from marigold (Tagetes) flowers, where it is abundant, though it occurs widely in green plants.
History
Lutein is well known as a dietary carotenoid, and its use in topical cosmetics draws on its established role as a plant-derived antioxidant pigment.
Questions everyone asks
Where does cosmetic lutein come from?
It is most often extracted from marigold flowers, a rich natural source of this carotenoid pigment.
What does lutein do in skincare?
It acts as a plant-derived antioxidant and conditioning ingredient and can contribute a slight yellow tint.