Review Coming Soon
Our editors are currently testing Olaplex No.3 Hair Perfector by Olaplex. Check back soon for our full review with ingredient analysis, pros and cons, and our expert verdict.
Thick, semi-viscous pre-wash treatment applied to dry or towel-dried hair before shampooing; uses Olaplex's patented Bis-Aminopropyl Diglycol Dimaleate to relink broken disulfide bonds in damaged/chemically treated hair. Being succeeded in distribution by No.3PLUS Complete Repair Treatment (launched Feb 2026), which keeps the same hero active but adds a Damage Defense Cationic Complex and cuts leave-on time to about 3 minutes.