A block copolymer of ethylene oxide and propylene oxide used as a surfactant.
What it is
Poloxamer 338 is a block copolymer of ethylene oxide and propylene oxide, with a central polypropylene oxide block flanked by polyethylene oxide blocks. CosIng lists it as an emulsifying and cleansing surfactant.
Where it is used
Found in gels, cleansers, toothpastes and some skin care products.
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 number 338 is a code for the size and composition of the polymer, not a concentration.
Functions
- Surfactant – emulsifying
- Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.
- Surfactant – cleansing
- Wetting body surfaces, emulsifying or solubilizing oils, and suspending soil (generally, such ingredients contribute to the foaming and lathering properties of cleansing products).
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.
Products with this ingredient (15)
- Black Pine 360° Eye-Lift Super Serum · KORRES
- Active Light Fondotinta Attivatore di Luce · Pupa Milano
- L'Oreal Revitalift Vitamin C Serum 30mL · L'Oréal
- Effaclar DUO (+) SPF 30 · La Roche-Posay
- Cicaplast Baume B5 SPF50 · La Roche-Posay
- Фарба для волосся L'Oreal Paris Preference 5.0 · L'Oréal
- Prevident · Colgate
- Colgate Munnskyll High Flouride 500ml · COLGATE PALMOLIVE NORGE AS
- L'Oreal Revitalift Day Fragrance Free 50ml · L'OREAL NORGE AS
- Garnier solar ambre anti-age super UV · L'Oréal
- Confidence in Your Beauty Sleep Night Cream · It Cosmetics
- Liftactiv Serum 10 Supreme · Vichy