D-Psicose

D-Psicose (allulose) is a rare monosaccharide epimer of D-fructose that occurs naturally in small quantities in wheat, figs, and raisins, though commercially it's produced through enzymatic conversion of D-fructose. In cosmetic formulations, it functions as a multifunctional humectant that provides moisturization while contributing to product texture and sensory feel, with the added benefit of participating in Maillard-type reactions that can enhance product aesthetics. Formulators value it for its excellent water-binding capacity, non-sticky feel, and ability to improve skin hydration without the heavy caloric load of traditional sugars.