Redken Smooth Lock Conditioner (250ml) Redken Smooth Lock Conditioner detangles smoothes & tames hair delivering nourishing shine & a long-lasting frizz-free finish to your locks. The lasting smoothness you could only dream about is now a reality. The Thermo Active Polymer in Redken Smooth Lock Conditioner retains internal moisture & strengthen hair whilst fragrant almond oil conditions & coats the hairs surface to leave you with a silky finish & added shine.