Cited skincare — every flag names its source, no upsell.
La

Laureth-3

Laureth-3

Keeps oil and water mixed and helps a product cleanse.

What it does

It’s lauryl alcohol, a fatty alcohol, joined to a short PEG chain, which lets it mix with both oil and water. The 3 is that chain’s average length. The EU lists it to keep oil and water mixed and to cleanse.

The evidence, graded

expert consensusUS safety reviewers (2012) assessed the alkyl PEG ethers, which products use mostly to help oil and water mix, and some to condition skin or steady a mixture. Their conclusion names laureth-2, laureth-3, laureth-8, laureth-9, laureth-12, octyldodeceth-16, steareth-30 and steareth-100. Because some of these ethers could irritate skin, they judged them safe as used in products made not to irritate.Fiume 2012 · International Journal of Toxicology ↗

Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.

Browse all 1238 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.