What it is
Anhydroxylitol is a low-molecular-weight polyol obtained from xylitol, the five-carbon sugar alcohol found in plants such as birch and corn. In formulas it acts as a humectant, helping bind water at the skin surface, and is frequently paired with xylitol and the disaccharide xylitylglucoside in moisturizing complexes. It is water-soluble and contributes to the hydrating phase of lotions, creams, and sunscreen bases.
Safety & warnings
Anhydroxylitol is a small, water-soluble carbohydrate generally regarded as well tolerated, with low irritation and sensitization potential and no comedogenic concern. It is not a known fragrance allergen.
Origin & sourcing
Derived from xylitol, a plant-sourced sugar alcohol, through dehydration to form the anhydro derivative.
Questions everyone asks
What does anhydroxylitol do in a sunscreen?
It works as a humectant, helping the formula draw and hold water at the skin surface for a more hydrated, comfortable feel.
Is anhydroxylitol natural?
It is derived from xylitol, a sugar alcohol sourced from plants such as birch and corn, then chemically dehydrated to its anhydro form.