The only inside-out, leave-in hair repair treatment that both reverses and fights future damage, reinforces hair's strength, and reduces breakage with our highest concentration of reparative Alpha Keratin 60ku®. Repairs Mends Strengthens Damage Reverse™ Serum revolutionizes hair repair by not only fighting future damage but by instantly repairing damage. Packed with the highest percentage of our hair-identical protein, Alpha Keratin 60ku®, this wonder-working miracle serum instantly repairs the
