Olaplex No. 0 Intensive Bond Building Treatment primes hair for maximum repair as the first step in Olaplex's two-part system with N.3 Hair Perfector. This professional-inspired treatment delivers the highest dose of patented OLAPLEX technology in any take-home product, preparing strands to absorb nourishment for deeper bond rebuilding.

As the initiation in a two-step routine, No. 0 works with N.3 to rebuild bonds, strengthen, and protect hair integrity. With consistent use, hair appears softer, shinier, and up to 3x stronger—a real upgrade for daily styling and color-treated hair.

Ideal for all hair types, it is especially beneficial for visibly damaged or over-processed hair. The formula is vegan and cruelty-free, and free from parabens, sulfates, nut phthalates, DEA, aldehydes & formaldehyde.

• Priming action: Primes hair to absorb nourishment for maximum repair.
• High-grade formula: Contains the highest dose of OLAPLEX technology in a take-home product.
• Bond rebuilding: Rebuilds bonds, strengthens & protects hair integrity.
• Visible results: Hair feels softer, shinier, and up to 3x stronger.
• Ethical & safe: Vegan, cruelty-free; free from parabens, sulfates, nut phthalates, DEA, aldehydes & formaldehyde.

Upgrade your routine with the 155 ml / 5.2 oz bottle—start with Olaplex No. 0 today and experience truly rebuilt hair from the inside out. Transform your hair journey—add Olaplex No. 0 to your routine and begin rebuilding bonds from within.