Gluconolactone is a naturally occurring compound derived from gluconic acid, often used in skincare products for its gentle exfoliating properties. It belongs to a class of substances known as polyhydroxy acids (PHAs), which help to improve skin texture and hydration without causing irritation, making it suitable for sensitive skin types. In addition to its exfoliating benefits, gluconolactone acts as a humectant, attracting moisture to the skin. It also has antioxidant properties, which can help protect the skin from damage caused by free radicals. Overall, it is valued for its ability to promote a smoother, more radiant complexion.