Clean & clarify your hair with System Professional Purify Shampeeling, a shampoo replacement that works to cleanse hair whilst expertly fighting dandruff. Designed for those who suffer with persistent dandruff & oily, irritated scalps, the formula delivers dandruff-fighting action with lasting protection; its Dermapure Complex eliminates dandruff-causing microorganisms & promotes a healthy scalp environment. With regular use, hair is clean, comfortable & flake-free. Use instead of shampoo 3 times per week for a total of 4 weeks.