Gluconolactone is a polyhydroxy acid (PHA) that is valued in skin care for its mild and moisturizing properties. This PHA gently exfoliates the top layer of skin and promotes cell renewal, leaving the skin looking smoother and more radiant. Compared to other hydroxy acids, gluconolactone is less irritating and therefore ideal for sensitive skin types. It also offers antioxidant benefits. Gluconolactone can be used in cosmetic products to support the skin barrier, reduce blemishes, and care for mature skin. (1-3)