Ingredient dictionary

Anhydroxylitol

Anhydroxylitol is a sugar-derived humectant, a type of ingredient that draws water into the upper layers of the skin. It is on the label of 11 products in our library. Checked against our library November 6, 2026.

What Anhydroxylitol does

Attracts and holds water in the skin
Helps skin feel soft and smooth
Adds moisture to rinse-off and leave-on products

Anhydroxylitol is made from xylitol, a sugar alcohol usually sourced from plant material such as birch or corn. Through a process that removes water from the molecule, it becomes a related compound with a similar moisture-holding job. It belongs to the humectant group, alongside glycerin, which helps keep skin hydrated.

Formulators use anhydroxylitol in washes, cleansers and moisturizers because it adds moisture without a heavy feel. It helps products spread evenly and feel smooth on skin. Like other humectants, it works best with a layer that slows water loss, such as a moisturizer applied on top.

Good for

Suits most skin types, especially dry or easily dehydrated skin, and is common in washes and moisturizers.

Frequently asked questions

Is anhydroxylitol gentle on sensitive skin?

Anhydroxylitol is generally well tolerated and is not a common irritant. Still, anyone with sensitive skin should patch test a new product first, especially if they react easily to fragrance or preservatives.

Does anhydroxylitol clog pores?

Anhydroxylitol is not known as a pore-clogger, since it works by attracting water rather than forming an oily film. Skin reacts differently from person to person, so acne-prone users should still watch how a new product feels over a few weeks.