Cleansing agents work by decreasing surface tension so water can more easily remove the dirt that will then be rinsed away. Excessively aggressive detergents are damaging to the Environment and may provoke skin irritation. HELAN, fully respecting its formulation philosophy and mission, does NOT use SLS or SLES, choosing detergents destined for baby's clothes and accessory washing with delicate surfactants. These fully respect baby’s delicate skin as well as the environment, which is inevitably involved.