What it is
Allantoin is a white powder. It can be found in plants, like comfrey and horse chestnut, and in the urine of most mammals. The type that is most commonly used in cosmetics and skincare products though derives from urea and glyoxylic acid.
What it does
Allantoin has anti-irritant, soothing and healing properties: it calms down irritations, helps shed the upper layers of dead skin cells and promotes the growth of healthy tissue. That’s why it’s effective at treating wounds,eczema, psoriasis, burns and other skin conditions.
In addition, Allantoin is a skin conditioning agent: it softens and smooths skin as well as allowing it to bind in moisture better.
However, there’s no scientific evidence that it has any anti-aging effects.
Allaintoin, used in concentrations ranging from 0.5% to 2%, is considered safe.