Smooth and tame unruly, frizzy hair with this gentle cleansing formula. Moroccanoil® Smoothing sulfate free Shampoo with AminoRenew™ restores depleted amino acids to strengthen hair and align its natural keratin structure. Infused with argan oil and argan butter, this hydrating shampoo gives you more manageable, healthy-looking, smooth hair. When used with Moroccanoil Smoothing Conditioner, results can last up to 72 hours.