The Joico Defy Damage Protective Masque has been specially designed to deeply nourish the hair while protecting against the effects of daily heat styling, UV exposure and environmental pollution that can lead to dull, lacklustre locks.The deeply replenishing hair mask is a powerful at-home hair treatment that works to rebuild broken hair bonds and reduce breakage. Penetrating deep within strands without weighing hair down, the hair masque infuses hair with a brilliant, bond-strengthening defence system to encourage heightened resilience and colour longevity. Hair is better protected against heat tools and feels instantly and touchably soft with glossy shine.