The enzyme formula in this shampoo functions as a shield against the skin's surface irritations. The Vitamin D3 helps to hydrate, and to support the supple skin. There are no steroids or harsh detergents or any petroleum by-products. Instead, the formulation has mild plant surfactants. The LP3 Enzyme System function similar to a shield in combat against the surface microbes. The skin gets hydrated by Vitamin D3. It is gentle and can be used on kittens too. The Zymox Conditioning Rinse is excellent as a leave in kind of conditioning treatment post usage of Zymox Shampoo. This product generates a protective barrier to fight the fungal and bacterial microbes.