Nioxin Scalp Recovery™ Purifying Exfoliator is a treatment that mechanically removes scalp flakes, debris and build-up, such as dead skin cells. It normalizes a flaky scalp leaving it refreshed and sets the foundation for the NIOXIN SCALP RECOVERY 3-step system. It contains ZPT-NIODerma™ Technology (with Pyrithione Zinc, an FDA-approved active ingredient) and green tea extract. The unique anti-dandruff system gently cleanses your scalp and helps to restore its natural balance.