System Professional Smoothen Mask 200mlThe System Professional Smoothen Mask is a weekly treatment to help soften coarse, dry hair. Ideal for rebellious tresses, the formula works to minimise the look of frizz and fly aways. It is designed to smooth the hair structure, keeping it sleeker for longer. To promote luxurious softness, the hair mask seeks to improve your strands texture. If your locks lack control or are difficult to style, this could be the product for you.