An emulsifier made from stearic acid and lactic acid.
What it is
Sodium stearoyl lactylate is the sodium salt of a compound formed from stearic acid and lactic acid (sodium 2-stearoyllactate). CosIng lists it as an emulsifying surfactant. It is also used as a food additive (E 481).
Where it is used
Used in creams, lotions, serums, cleansers and hair conditioners.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
The INCI name does not reveal whether the stearic acid comes from plant or other sources.
Functions
- Surfactant – emulsifying
- Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.
Products with this ingredient (43)
- Intense Hydration Moisturizer · Lumene
- Intense Hydration Night Cream · Lumene
- Hyaluronic Intensive Cream · ArtDeco
- Endless Lashes Mascara Refill · ArtDeco
- Endless Lashes Mascara · ArtDeco
- Multi Lash Volume Mascara · ArtDeco
- Multi Lash Volume Mascara Refill · ArtDeco
- Soin hydratant protection quotidienne SPF 50+ · Payot
- Fragrance Bistrot – Mousse Corpo · Pupa Milano
- Hair in Balance by ONLYBIO Szampon nawilżający 400 ml Redesign 2026 · ONLYBIO
- Body in Balance by ONLYBIO Balsam do ciała mandarynka 200ml · ONLYBIO
- Ultra Hydrating Gel Moisturizer With Aloe & Green Tea Extract · Trader Joe's

