Or copy link
Intensive Bond-Building Pre-Treatment for Damaged Hair
Olaplex Nº.0 Intensive Bond Building Treatment is the priming step in the at-home Olaplex repair routine. The 155ml leave-in formula is applied to dry hair before the Nº.3 Hair Perfector and works at the molecular level to rebuild broken disulfide bonds, the structural links that give hair its strength. The active Bis-Aminopropyl Diglycol Dimaleate is the patented bond-builder behind the brand. The formula is free of sulfates, silicones, phthalates, phosphates, parabens, MIC/MIT and protein.
Why Choose It?
- Rebuilds broken disulfide bonds inside the hair shaft at the molecular level
- Primes dry hair before the Nº.3 Hair Perfector for a deeper bond-building treatment
- Brand-cited clinical data: 68% more repair in one use when paired with Nº.3 and Nº.4
- Free of sulfates, silicones, phthalates, phosphates, parabens, MIC/MIT and protein
- Twist-to-prime nozzle for targeted application — applied to dry hair before shampooing
Best For
Damaged, over-processed and chemically-treated hair — including bleached, coloured and heat-styled hair — where the disulfide bonds inside the strand need rebuilding. Designed to be used before and after colouring services for maximum strengthening and repair, always paired on top with the Nº.3 Hair Perfector for the full bond-building routine.
Use as the first step of the at-home bond-building routine, always followed by the Olaplex Nº.3 Hair Perfector bond-building mask.
- Start with dry, detangled hair.
- Twist the nozzle to unlock and prime the product.
- Apply Nº.0 generously from roots to ends, fully saturating the lengths.
- Leave the treatment on for 10 minutes.
- Layer the Nº.3 Hair Perfector on top without rinsing, comb through and leave for another 10 minutes.
- Rinse thoroughly with warm water, then shampoo and condition as usual.
Tips
- Follow up your wash routine with a Olaplex bond-building shampoo to keep the bond-building routine consistent between treatments.
- Use before and after colouring or lightening services for maximum strengthening and repair.
- Apply enough product to fully saturate dry hair — under-applying reduces how much active reaches the bonds.
- A shower cap can help keep the product in place during the 10-minute wait.
For external use only. Avoid contact with eyes. Keep out of reach of children.
| Base/Solvent | |||
| Water (Aqua) | |||
| Active Ingredients | |||
| Bis-Aminopropyl Diglycol Dimaleate | |||
| Preservatives | |||
| Sodium Benzoate | Phenoxyethanol | ||


