Le
Lecithin
Lecithin · Hydrogenated LecithinBarrier
A phospholipid (often soy- or sunflower-derived) that emulsifies oil and water and conditions skin with a barrier-like structure.
What it does
Lecithin is a natural phospholipid — the same class of molecule that builds cell membranes. In formulas it works as an emulsifier, holding oil and water together, and it can help carry other ingredients. Its barrier-like structure also gives a conditioning, softening feel. The hydrogenated version is more stable and common in modern formulas. Its role is structure and feel, not a standalone active.
Also known as
phosphatidylcholine
Browse all 668 ingredients — grouped by what they do, each with whatever evidence we can cite.
This page is public so a shared ingredient card always has its sources behind it — and so you can check them without an account.
Want more like this?
Every evidence-based flag cites its source, Drop tells you when your routine is complete, and it helps you simplify — instead of selling you more. The app launches on iOS and Android in October 2026. Rate my routine works today at /rate — no sign-in.