A unique and innovative professional treatment to make hair stronger, soft, elastic and healthy after any type of particularly invasive chemical treatment, such as strong bleaching. No more damaged or cut hair with Olaplex! Mix 15 ml of Olaplex N ° 1 Bond Multiplier with 85 ml of water in an applicator bottle (Do not use spray bottles with micro diffusers). Apply from roots to ends on wet and towel-dried hair (if the hair is very dirty, a light shampoo can be performed to remove impurities). Saturate the hair and comb well. Leave on for 10 or more minutes. Without rinsing, apply 15 ml of Olaplex N ° 2 Bond Perfector - the restorative product that reconnects damaged sulphide bonds and gives new strength and structure to the hair - and comb to better distribute the product. Leave on for a minimum of 10 minutes or more. The more the hair is damaged, the more it is appropriate to extend the exposure time up to a maximum of 20 minutes. Rinse off shampoo and conditioner.