Skincare without the upsell.
Bi

Bis-Hydroxyethoxypropyl Dimethicone

Bis-Hydroxyethoxypropyl DimethiconeBarrier

A water-friendly silicone that softens and smooths skin.

What it does

Bis-hydroxyethoxypropyl dimethicone is a silicone with water-loving side groups, so it mixes into water-based formulas. It leaves the skin feeling smooth and soft. Drop has read no study of it on skin; it is listed for the job it does in the formula.

Browse all 706 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.