The Joico Defy Damage Invincible Frizz-Fighting Bond Protector is engineered to shield your hair from the damaging effects of daily styling and environmental stressors. This specialized formula works to reinforce the hair's natural bonds, resulting in visibly smoother, stronger, and more resilient strands. Use this protector before heat styling or exposure to conditions that might compromise hair integrity to lock in moisture and maintain a sleek, frizz-free finish throughout the day.