Olaplex No. 4

Let us introduce you to OLAPLEX. Starring a patented active ingredient that works on a molecular level, OLAPLEX formulas seek out broken bonds in the hair (which are caused by chemical, thermal and mechanical damage) and repair them, restoring compromised hair to former glory.

The OLAPLEX No 4 Bond Maintenance Shampoo repairs hair bonds while gently cleansing hair, imparting deep moisture and strength (it?s the perfect follow-up to the incredible No 3 Hair Perfector).