Intensive restructuring mask with keratin and collagen. Added with provitamin B5, vitamin B6 and vitamin e. releases the proteins necessary to reinforce the internal structure of the hair. Leaves hair hydrated, chunky, morbili and manageable hair. Its action penetrates inside the previously open scales with the step1 Keratin Shampoo, reinforcing the internal structure of the hair. During the posale time scales close retaining the active ingredients. HOW TO USE:Apply to damp hair, 15-20 ml on lengths and ends. Massage and distribute the product evenly. Hold on for 4-5 minutes, then rischiaquare and proceed to step 3 Keratin spray.