Redken Smooth Lock Shampoo Cleanse nourish & replenish untamed hair with this Smooth Lock Shampoo from Redken. Designed to give you a long-lasting frizz-free finish. The Thermo Active Polymer in Redken Smooth Lock Shampoo forms a humidity-resistant & heat activated barrier to retain internal moisture & strengthen hair. Fragrant almond oil conditions & coats the hairs surface to leave you with a silky finish & added shine.