INGREDIENT GLOSSARY • Humectant

Propylene Glycol

AT A GLANCE

Propylene Glycol

A common and effective humectant, solvent, and penetration enhancer.

Type of Ingredient

Humectant

Why we use it

Propylene glycol is an ingredient of many talents. It’s a great humectant, meaning it draws water towards itself and helps hydrate and plump the skin. It’s a solvent, so it helps ingredients stay dissolved in a formula. And it’s a gentle penetration enhancer, meaning it helps active ingredients reach deeper layers of the skin, making them more effective. (At high concentrations, it can also be a preservative, but Stratia products don’t use it this way.)

What it’s in

Interface, Liquid Gold, Rewind, Soft Touch AHA, Velvet Cleansing Milk

Shop This Ingredient

Interface

peptide cream

Lipid Gold

barrier lotion
50ml
100ml

Rewind

firming serum