Goldwell Dualsenses Just Smooth 6 Effects Serum 100ml The Just Smooth 6 Effects Serum is a leave in formula that has been created to tame unruly and frizzy hair, by depositing essential nutrients for a sleek and glossy look!  It helps to detangle, style and makes the hair manageable all over whilst protecting colour and leaving it vibrant. The nourishing extract of Kukui nut oil helps to moisturise the hair and protects against humidity!  The Six Benefits: Anti-Frizz Humidity control Taming  Manageability  Smoothening  Natural shine