What it is: A sulfate-free shampoo that offers superior, yet gentle, cleansing for fine, thin hair. What it does: Full Shampoo deeply cleanses fine, thin hair, removing all traces of dirt, oil, and product build up. Formulated without damaging sulfates, Full Shampoo properly cares for and prepares lifeless, limp hair for optimal styling. What it is formulated WITHOUT: Parabens. Sulfates.