Softens & Renews Free of: sulfates, parabens, phthalates, gluten, drying alcohol and artificial colors. Give damaged, over-processed hair a miracle makeover with Hask Keratin Protein Smoothing Shampoo. Infused with Hydrolyzed Keratin to reduce frizz, this shampoo gently cleanses leaving even the most unruly hair soft, straight and revitalized with incredible shine. Ideal for frizzy, dry or color-treated hair.