Allantoin, also known as N-(2, 5-dioxo-4-imidazolinidine) urea, with the molecular formula C4H6N4O3, is a derivative of acetonide urea. Allantoin is mainly applied in three major fields: medicine, cosmetics and agriculture.Allantoin is a naturally occurring compound with the chemical formula C₄H₆N₄O₃. It is a diureide of glyoxylic acid and is known for its soothing, moisturizing, and skin-repairing properties.Allantoin has physiological functions such as promoting cell growth, accelerating wound healing, and softening keratin proteins. It is a good healing agent and anti-ulcer agent for skin wounds.