Salerm Keratin Shot Deep Impact Plus Mask is a super hydrating treatment mask. Normalizes instantly. It is a multi-level treatment mask that acts at all levels; its silk proteins bring silkiness and shine. Directions: Apply after washing and towel drying. Apply and leave to work for 3 minutes. Rinse. Can be applied to dry hair without rinsing. In this case, use hazelnut sized amount. Free Express * to your doorstep. You don't have to pay anything extra!!. Product Type: Hair & Scalp Care. Brand: Salerm Cosmetics. Brand beauty products. Salerm Keratin Shot Deep Impact Plus Mask 6.9oz.