What it is: Curl Cleansing Sulfate-Free Shampoo designed to bring out bouncy, healthy curls. What it does: Joico Curl Cleansing Sulfate-Free Shampoo purifies hair and scalp without stripping much-needed moisture. This amazing sulfate-free cleanser leaves curls beautifully bouncy and defined. What else you need to know: Bio-Advanced Peptide Complex and AquaLastik Technology.