Tested by the Swiss Vitamin Institute, Pantene Pro-V intensive repair Keratin Treatment hair mask helps repair 6 months of damage in a single use with the micronutrients it contains. The rich formula of Pantene Pro-V penetrates the hair roots, nourishing and strengthening each strand from root to tip. (styling damage repair / styling damage resistance) · Hair mask for weak, damaged hair · Intensive care that helps eliminate signs of damage in one use · Hair mask that helps repair damage in one use · Tested by the Swiss Vitamin Institute