Hy
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
A versatile gelling polymer and emulsion stabilizer that thickens lotions and gives them a light, fast-absorbing feel.
What it does
This is a synthetic polymer used to thicken and stabilize creams, lotions, and gels. It hydrates and swells in water to build a smooth gel network that suspends oils and actives and resists separation across a wide pH range. Formulators reach for it because it produces a light, silky, quick-breaking texture rather than a heavy or sticky one. It is a texture-and-stability workhorse, not a skin active.
Also known as
sepinov, simulgel
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.