What it is
Beta-glucan is a naturally occurring polysaccharide whose chains of glucose units give it water-binding and film-forming properties. In sunscreens and moisturizers it is used as a hydrating, soothing, and skin-conditioning ingredient that can help leave skin feeling comfortable. It is often paired with other humectants to support a softer, smoother feel.
Safety & warnings
Beta-glucan is generally well tolerated and regarded as gentle, making it a common choice in formulas aimed at sensitive or easily irritated skin. As with any ingredient, individual sensitivities are possible, and the source material can influence its exact composition.
Origin & sourcing
Natural or biotechnology-derived. It is most commonly obtained from the cell walls of yeast or from cereal grains such as oats and barley, and is also produced by certain fungi.
Questions everyone asks
What is beta-glucan made from?
It is a polysaccharide most often derived from yeast or from oats and other cereal grains.
What does beta-glucan do for skin?
It binds water and forms a light film, helping hydrate, soothe, and condition the skin for a more comfortable feel.