BIO BEAUTY ROUTINE SOS - DAMAGED HAIR What it is: Shield spray to be misted at the end to consolidate the result and in the following days to protect the hair from damage. The 3 amino acids create a protein film that instantly seals and repairs split ends and the shaft without weighing it down. Shields from UV rays and external pollutants. PAO 12m - 150ml Usage: Spray on damp hair before drying to complete the ritual. Use on dry hair in the following days to reduce the risk of further damage.