Great Curls Start At The Scalp. Curl Cleanse Shampoo gives curls + waves added hydration with 5% Glycerin vs 1. 5% Glycerin in original formulation. 0. 01% Fulvic Acid acts as a probiotic for the scalp to remove scalp build up that occurs from curly styling products + balances the scalp microbiome. | Act+Acre Cold Processed Curl Cleanse Shampoo, 10 fl oz | Dermstore