• Pantene Long and Strong Keratin Protective Anti-Hair Mask brings together the power of Pro-V science with Bamboo and Biotin. • Our formula helps strengthen hair strands and reduce hair loss for hair that grows 100% stronger in 1 use. Product Description: • Mask for hair loss • Mask for 100% stronger growing hair • Keratin protective mask with Bamboo, Biotin and Pro-V • Tested by the Swiss Vitamin Institute. • Pantene is the world's number 1 hair care conditioner and is enriched with vitamins.