Professional Leave-In Treatments — K18, Kérastase, Color WOW & ghd UK
Shop professional leave-in treatments at The Cosmetologist — official UK stockists of K18, Kérastase, Color WOW, ghd, milk_shake, Moroccanoil and Olaplex. From the iconic K18 Leave-In Molecular Repair Mask to the Kérastase Nutritive 8H Magic Night Serum and Color WOW Dream Cocktail — our range of leave-in treatments repairs, hydrates, strengthens and protects all hair types without rinsing. Perfect for damaged, bleached, fine and colour-treated hair. Fast UK delivery on every order.