What it is
Phosphatidylcholine is a naturally occurring phospholipid built from a glycerol backbone, two fatty acid chains, and a phosphate-choline head group, and it is the principal phospholipid in lecithin. Its amphiphilic structure makes it an effective nonionic emulsifier and a building block for liposomes and other delivery systems. In skincare it also acts as a skin-conditioning and emollient agent that supports a smooth, supple feel.
Safety & warnings
Phosphatidylcholine is generally well tolerated and is not a recognized fragrance allergen. Soy- or egg-derived material may be a consideration for individuals with those specific allergies, though purified phospholipids contain little protein. It is not typically associated with comedogenicity at cosmetic use levels.
Origin & sourcing
Natural or semi-synthetic; it is typically isolated and purified from lecithin sourced from soybean or egg yolk, and can be enriched or hydrogenated for cosmetic use.
Questions everyone asks
Where does phosphatidylcholine come from?
It is a phospholipid usually purified from lecithin obtained from soybeans or egg yolk.
What does phosphatidylcholine do in a formula?
It acts as an emulsifier and conditioning agent and is often used to build liposomes that help carry other ingredients.