Safety Assessment of Lecithin and…s Used in Cosmetics.

Lecithin and similar phospholipid ingredients are safe to use in cosmetics at concentrations up to 50%, where they work as conditioning agents and emulsifiers. While these ingredients do have biological effects in the body, applying them to your skin doesn't trigger those same effects. One caveat: if lecithin comes from cattle, it's not allowed in cosmetics due to FDA restrictions on certain animal-derived materials.