The Nanokeratin Refortify Mask is for Curly and Afro Hair. The mask helps hair to stay nourished from root to tip with natural nutrients. Refortify will help insulate the hair against damaging environmental factors. Including, humidity, salty water, UV rays, and heat sources. Will enhance your colour shine, prolong colour retention and keep colour from fading. Also, acts as a de-tangler and allows hair to move freely giving each curl definition, whilst encouraging hair growth. This is perfect for those who have had the Keratin smoothing treatment to help prolong it.