Revlon Professional Style Master Reset Shampoo is a product designed to remove build-up and impurities from the hair. This particular product comes in a 150ml bottle, it's a good option for those looking to remove buildup and impurities from their hair whilst prepping it for optimal color results. The formula is enriched with citric acid, which helps to gently exfoliate the scalp and remove impurities from the hair without stripping it of its natural oils. It is also formulated with panthenol and keratin, which help strengthen and protect hair. To use Reset Shampoo, simply wet your hair thoroughly and apply a small amount to your scalp and hair. Gently massage to create a lather, then rinse thoroughly with water. For best results, follow with a conditioner or hair treatment