What it is
Fructan is a carbohydrate polymer made up of fructose units that is used in cosmetics for its moisturizing and conditioning properties. It binds water at the skin surface and can form a light film, giving a smoothing feel, and is often included for its prebiotic, microbiome-supporting positioning. It is water-soluble and commonly found in hydrating serums and sunscreens.
Safety & warnings
Generally well tolerated and considered a mild, non-irritating ingredient suitable for sensitive skin. It is not a recognized fragrance allergen.
Origin & sourcing
Natural; fructans are plant- or microbially-derived fructose polymers obtained from sources such as chicory, agave, or other plants, then purified for cosmetic use.
Questions everyone asks
What is fructan made of?
It is a polysaccharide built from fructose sugar units, typically sourced from plants such as chicory or agave.
What does fructan do for skin?
It works as a humectant that helps hold moisture and condition the skin, and is often included for microbiome-friendly positioning.