Ingredients Glossary / S

Sorbitol

A gentle sugar-alcohol humectant that helps the skin's outer layer attract and hold water; often paired with glycerin in hydrating formulas.

sorbitol, D-glucitol, glucitol, sugar alcohol, polyol

Dry & dehydrated skin · All skin types

    What it does

    Sorbitol is a sugar alcohol, found naturally in fruits such as apples, pears and plums, used as a humectant in skincare to improve the skin’s ability to retain moisture. As a humectant, sorbitol draws water into the outer layer of the skin, from the air when it is humid or from deeper in the skin, to keep it supple and hydrated.

    How it works

    Its structure, rich in water-attracting hydroxyl groups, lets sorbitol bind water in the stratum corneum, the skin's outermost layer, keeping it soft and flexible. It is used in moisturisers and creams for its thickening and lubricating properties and can be manufactured through natural or synthetic means. In many Biologique Recherche formulas it sits alongside urea, serine and sodium lactate, ingredients that mirror the skin's own natural moisturising factors.

    MG says

    Like glycerin, sorbitol is best sealed in: in dry or air-conditioned air a humectant can pull water up from deeper in the skin, so follow a sorbitol-rich toner or serum with a moisturiser. Mid-flight, I love Auteur's Definitive Lifting Toner, where sorbitol joins several sugar-based humectants to layer the skin with hydration.

    Cautions

    Sorbitol is very well tolerated and suits all skin types, including sensitive skin. In very dry air, always follow humectant-rich products with a moisturiser.

    Regional notes