What it is
Mannitol is a polyol (sugar alcohol) that occurs naturally in many plants. In cosmetics it is used as a humectant that helps attract and hold water, and as a conditioning ingredient that contributes to a smooth skin feel. It is highly water-soluble and is incorporated into the aqueous phase of serums, creams, and sun care products; it can also be used as a bulking or processing aid.
Safety & warnings
Mannitol is widely used and well tolerated in topical products. As a water-soluble polyol it is not comedogenic and is not a known fragrance allergen. It is generally suitable for sensitive skin.
Origin & sourcing
Natural in origin, occurring in plants and produced commercially from plant sugars; it is the alcohol counterpart of the sugar mannose.
Questions everyone asks
What is mannitol used for in skincare?
It works mainly as a humectant and conditioning agent, helping the formula hold moisture and leaving a smooth feel.
Is mannitol a sugar?
It is a sugar alcohol, a polyol related to the sugar mannose, used for its water-binding and conditioning properties.