Gently care for sensitive scalps with a skin friendly p H value with Wella SP Balance Scalp Mask. Delivering soothing cleansing, it ideally prepares the scalp for hair loss treatments. An essential component of the SP Balance Scalp line, Wella SP Balance Scalp Mask is formulated with Zinc Pyriothon Complex which delicately balances & soothes sensitive scalps as well as strengthening thin hair to reduce hair loss. To use: Distribute evenly through pre-shampooed towel-dried hair. Leave for five minutes. Rinse out thoroughly.