The Gyutto Corset Hair Mask is a Japanese wash-off hair treatment designed to repair and smooth damaged, frizzy, or unruly hair, especially for those with wavy or curly textures. Featuring unique "corset technology," it deeply hydrates and strengthens each strand, correcting waviness and preventing breakage. Infused with 13 beauty serum ingredients and a calming green tea and yuzu scent, it's best for adults seeking to restore manageability, shine, and softness to hair prone to dryness, frizz, or styling damage.