Damage Reverse Serum revolutionizes hair repair by not only fighting future damage, but by reversing it. Packed with the highest percentage of our bioidentical protein, Alpha Keratin 60ku®, this wonder-working miracle serum near-instantly and holistically repairs the severed bonds that give hair its strength, naturally restores damaged peptides to give hair elasticity, and refills each strand with all-natural keratin to smooth, soften, and protect from future harm. WHAT MAKES IT DIFFERENT: No other damage-repair product can tout the unparalleled benefits of our bioidentical protein, Alpha Keratin 60ku®. Rigorous clinical testing revealed that this formula instantly repaired split ends by 98% increased fiber flexibility to make hair more resistant to breakage; in fact, it was clinically proven to reduce breakage by 2x after just one use.