The Joico Defy Damage Invincible Frizz-Fighting Bond Protector is a must-have for any hair care enthusiast. It instantly increases softness and shine, while protecting the hair from damage caused by heat styling and other environmental aggressors. This unique product is formulated with a special blend of hair-strengthening ingredients that strengthens the bond within the hair and protects it from the inside out. It keeps frizz at bay, while adding instant nourishment to the hair. With regular use, the Defy Damage Invincible Frizz-Fighting Bond Protector keeps the hair healthy and strong, while providing long-lasting protection against humidity.