what makes this so unique? It is a natural soothing, anti-irritant, and skin protectant that increases the water content of the extracellular matrix which provides structural support to cells and is an important part of connective tissue. Allantoin also increases the smoothness of the skin; promotes cell replication; and promotes the healing of wounds, burns, and scars. It is added to skin care products for its moisturizing effect as well as its ability to cause the outer layer of dead skin cells to loosen and shed.