What is it?
Propylene glycol is a humectant (hydrator) that contributes to the delivery of key active ingredients into skin. It also plays a role in keeping formulas from melting in high heat or from freezing in low temps. It is a colorless and odorless liquid that functions as a humectant, solvent, and conditioning agent in skincare. It helps maintain moisture levels in products and improves the skin’s ability to absorb active ingredients.
Where does it come from?
Also known as 1,2-propanediol, propylene glycol is a lab-made ingredient for purity and found in skincare products with a proven track record of safety.