Tresemmé styling products. SMOOTH keratin shampoo. Smoothing and smoothing shampoo with keratin. Its formula contains a sophisticated keratin complex that will provide your hair with all the nutrition and hydration it needs to look smooth, soft and radiant. Thanks to this, you will get rid of frizz and have more versatile and manageable hair. Apply on wet hair and emulsify by performing a gentle hair massage extending from the roots to the ends. Rinse with plenty of water.