Prime your hair for your deepest at-home repair with this salon-inspired pre-treatment to boost the effects of N°3 Hair Perfector. The highly concentrated formula rebuilds disulfide bonds to repair more severe damage and immediately strengthens hair when N°0 is used with N°3. Clinically Proven 68% more repair* 68% better detangling, improved conditioning, and smoother* 65% reduction in breakage** *When used as a three-part system of N°0, N°3, and N°4 in just one use. **When used with N°4. KEY BENEFITS ?Intensifies repair results with N°3 ?Strengthens hair and reduces breakage ?Rebuilds hair bonds at a molecular level TEST RESULTS Results With One Use UNRETOUCHED IMAGES* *Results may vary. Results achieved by treating hair with Nº.0 Intensive Bond Building Treatment + No.3 Hair Perfector, then cleansing with No.4 Bond Maintenance Shampoo, conditioning with No.8 Bond Intense Moisture Mask, and applying No.6 Bond Smoother to damp hair before styling. UNRETOUCHED IMAGES* *Results may vary.