The 6 effects serum from the dualsenses just smooth hair care serie from Goldwell is a taming care for unruly hair. Achieve sleek, glossy hair with Goldwell dualsenses just smooth 6 effects serum, a leave-in formula that works to smoothen and tame unruly, frizzy hair. Improving manageability, detangling and frizz control, the serum has been developed with built-in colour protection to minimise fading, and contains moisturising kukui nut oil; a nourishing ingredient that evens the surface of hair and smoothens hair structure for sleek, tamed results. Delivering a multitude of benefits, the treatment will provide humidity control whilst alleviating frizz and enhancing natural shine.