Your Hair's Most Powerful Starting Point.

Before the repair comes the prime. Olaplex No.0 Intensive Bond Builder is the salon-inspired pre-treatment that prepares your hair for its deepest at-home repair yet. Used in combination with N°.3 Hair Perfector™, this highly concentrated formula rebuilds disulfide bonds, tackles more severe damage, and immediately strengthens hair from within — delivering results that neither product can achieve alone.

Key Benefits

• Intensifies Repair: Amplifies the results of N°.3 Hair Perfector™ for deeper, more effective bond repair.
• Rebuilds At A Molecular Level: Targets and rebuilds broken disulfide bonds — the root cause of damage, breakage, and weakness.
• Strengthens Hair: Immediately improves hair strength and resilience, reducing breakage with every use.
• Salon-Inspired Formula: Highly concentrated technology developed to bring professional-grade repair into your home routine.

How To Use

1. Apply to dry hair, distributing evenly from root to tip.
2. Leave on for 10 minutes. Do not rinse.
3. Apply N°.3 Hair Perfector™ and comb through.
4. Leave on for a further 10 minutes, then rinse well.
5. Shampoo and condition with N°.4 and N°.5.

Repair Starts Here

If your hair has been through colour, heat, or chemical processing, No.0 is the reset it deserves. Add Olaplex No.0 Intensive Bond Builder 155ml to your basket and begin your most transformative repair yet.