Allantoin

INCI: Allantoin, Cordianine, Glyoxyldiureide, 5-Ureido-2.4-Imidazolidindione, 5-Ureidohydantoin

Allantoin initially was a natural metabolism product, but today is mostly produced synthetically and is used as an alternative to urea. Allantoin is wound healing, skin-smoothing and cell regenerating, but has a smaller moisture-binding effect than urea. It can reduce skin irritations and is considered to be exceptionally compatible.
In addition to this, allantoin has keratoplastic (cornea-softening) properties, that means it can losen hornified skin cells and support the flow off of sebum and, therefore, is perfectly suitable for oily and impure skin.
It can also boost cell growth, cell development and cell regeneration. Additionally, it calms the skin.