Namely
Allantoin is a white crystalline powder. It is a nitrogenous compound that is found both in the plant environment (Comfrey Root for example) or animal (in the urine of calves). It can also be obtained synthetically from uric acid. In cosmetics, allantoin is used for its astringent, anti-irritant, anti-inflammatory, healing and moisturizing properties. It is also used in the treatment of dentine hypersensitivity. Allantoin is not authorized in organic in France.