Aging skin becomes thinner and less capable of holding onto moisture, and over time its natural moisturising factors are reduced. Increasingly dry skin loses elasticity and becomes creped and wrinkled.

Betaine, hyaluronic acid and propanediol all have strong water binding capacity and are able to attract water and retain it within the skin. Hyaluronic acid is one of the major water binding molecules - able to hold 1000 times its own weight in water.