Fructooligosaccharides

Fructooligosaccharides are short chains of plant-derived sugars, usually made from sources like chicory root or sugar beets. In skincare and haircare, they’re used mainly as a prebiotic-style support ingredient: they help create a friendlier environment for the skin’s and scalp’s natural microbiome while also adding a light humectant effect. That means they can help products feel more comfortable, less stripping, and a bit more hydrating.

For skin, fructooligosaccharides are often found in gentle cleansers, moisturizers, and products aimed at supporting a balanced-looking complexion. For hair and scalp, they may be included in shampoos or scalp treatments to help maintain a healthier-feeling scalp environment and improve overall comfort. People with dry, sensitive, or easily irritated skin, as well as those looking for microbiome-friendly formulas, may especially appreciate them.

Caveat: fructooligosaccharides are supportive ingredients, not dramatic actives, so their benefits are usually subtle and depend on the full formula. They’re generally well tolerated, but any ingredient can bother some people, especially if the product also contains fragrance or stronger actives.