PEG-8 DISTEARATE
PEG-8 Distearate is an ingredient made by linking two stearic-acid portions to a polyethylene glycol chain. The number 8 refers to an average of eight ethylene-oxide units in that chain, so it is a material with an average composition rather than one single, identical molecule in every batch.
PEG-8 DISTEARATE: what it is
PEG-8 Distearate is an ingredient made by linking two stearic-acid portions to a polyethylene glycol chain. The number 8 refers to an average of eight ethylene-oxide units in that chain, so it is a material with an average composition rather than one single, identical molecule in every batch.
The word "distearate" matters because it signals two links to stearic acid. PEG-8 Stearate is a similar-looking name, but it refers to the ester with one such portion and should not be treated as the same ingredient when comparing labels. The stearic-acid portion is the fatty part of the structure, while the PEG chain also has an affinity for water.
PEG-8 DISTEARATE: what it does in cosmetics
PEG-8 Distearate is used as an emulsifying surfactant in cosmetics. In practical terms, it helps water and oily components form one even mixture, which matters when a cream, lotion, or cleansing product needs to stay together instead of separating into layers during use.
When it appears on an ingredient list, its main contribution is to the formula's structure and consistency rather than to make a skin-treatment promise. A well-formed emulsion can make application more even and keep ingredients distributed through the product, but it does not by itself show an effect on acne, wrinkles, dark spots, or other skin conditions.
Products containing this ingredient
See which products include it and the name used in each composition.
