The biggest difference with a regular shampoo with sulfates is the sensitization for the scalp. Sulfate shampoos have high foaming and cleansing power, and sulfate-free shampoos are less irritating for sensitive scalps. There are already other sulfate-free shampoos on the market but they are low in viscosity, foam and washing power. Our 0% shampoo with a sponge texture and high viscosity, achieves a much softer foam, with finer and smaller air bubbles giving the sensation of creamier foam, obtaining extreme softness and cleanliness on the hair.