Hair Repair for everyone! Olaplex No. 3 Hair Perfector. It is a concentrated hair treatment that strengthens hair from within, helping to reduce breakage and improving the look and feel of your hair. This at-home treatment addresses damaged and compromised hair, strengthens and protects the hairs structure and restores a healthy appearance and texture. Apply a generous amount from scalp to Ensz on damp, towel dried hair, making sure to thoroughly saturate your strands. Leave on for a minimum of 10 minutes. Rinse, shampoo and condition as usual. Use 1 to 3 times per week. Parabn free, sulfate free, phthalate free, gluten-free. LTKSeasonal LTKunder50 LTKsalealert