Fructan

Fructan is a naturally occurring polysaccharide—a type of carbohydrate polymer—composed of fructose units. It is found in various plants including wheat, chicory, and agave, where it serves as an energy reserve. In skincare formulations, fructan functions as a humectant and skin conditioning agent, helping to draw moisture into the skin and maintain hydration.This ingredient is used in a relatively small proportion of skincare products (approximately 0.2%), suggesting it remains a niche ingredient within the broader skincare market. Its carbohydrate structure allows it to interact with the …

As a humectant, fructan functions by drawing water from the dermis (deeper skin layers) and the environment into the stratum corneum. This mechanism helps to plump the skin temporarily and improve its hydration status. The polysaccharide structure of fructan also allows it to form a conditioning film on the skin surface, which can help improve texture and tactile properties.

Fructan is typically found in moisturisers, serums, and hydrating formulations. It works most effectively when the skin environment has adequate moisture available, as humectants perform better in humid conditions or when layered with occlusive ingredients. Combine with other hydrating ingredients such as glycerin or hyaluronic acid for optimal effect.

Fructan is generally well-tolerated and considered safe for topical use. Individuals with fructose sensitivity or known carbohydrate sensitivities may wish to patch test, though systemic absorption from topical application is unlikely.