Zero SLS Free. Sodium Lauryl Sulfate-Free Hair Care System (includes shampoo and conditioner). Why You Want It... Healthy hair is plump full and voluptuous! This thickening blend helps to add body to your tresses from the bottom to the top giving you big touchable beautiful strands. Strength & body+. Discover plump-looking tresses with this fortifying blend with bamboo fibers and soy proteins for strands that appear to have voluptuous body and fullness. Indulge in beautiful fiber-full hair days.