Wella SP Balance Scalp Mask A soothing intensive treatment for sensitive scalps, this Balance Scalp Mask from Wella works to soothe the scalp & strengthen the skin's protective barrier. 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. Soothing on scalp With Zinc Pyriothon Complex Strengthens thin hair