If you suffer from dry, flaky dandruff, System Professional’s Purify range is for you. Created under dermatological supervision & advanced testing, the Purify line offers gentle & effective treatments to restore your scalp environment without throwing off your delicate p H balance. Nourishing & intensely moisturising, the weekly mask treatment works to actively combat all known causes of dandruff with three soothing star ingredients. A powerful antibacterial, antimicrobial & antifungal ingredient, Zinc Pyrithione is a great inhibitor of yeast growth, the main contributing factor in dandruff formation. Witch Hazel extract helps reduce inflammation, while Allantoin calms & comforts irritation. With regular use, hair feels intensely conditioned & flake-free. Dermatologist-developed & tested. Packaging may vary.