Olaplex N°.0 Bond Building Hair Treatment Pre-Treatment 155 mL — Intensive Bond Repair & Primer

Olaplex N°.0 Bond Building Hair Treatment is an intensive pre-treatment that primes and rebuilds weakened hair bonds to strengthen and protect hair before deeper repair.

Olaplex N°.0 (155 mL) is a salon-grade, at-home primer formulated to prepare hair for follow-up repair with No.3 Hair Perfector. Its concentrated formula targets compromised areas along the hair shaft to reinforce internal bonds, helping hair better accept and hold the benefits of subsequent treatments. The bottle includes a targeted nozzle for a direct-stream application so the product reaches strands efficiently and with minimal waste.

How does N°.0 prepare hair for No.3?

N°.0 acts as the first step in a two-part system: it saturates and primes the hair so the No.3 treatment can penetrate more uniformly and work more effectively. Applied to dry hair, it creates a receptive environment that helps maximize bond repair during the follow-up step.

• Highly concentrated formula designed for pre-treatment use
• Targeted nozzle allows even saturation from roots to ends
• Improves absorption of No.3 when used as directed

What benefits will I notice after using this bond-builder?

You can expect hair to feel firmer and appear healthier-looking after consistent use with No.3. The product aims to reinforce internal structure, making strands less prone to breakage and more resilient against styling stress.

• Enhanced strand strength and resilience
• Smoother, more manageable texture for styling
• Reduced appearance of damage with repeated treatments

How do I use Olaplex N°.0 at home?

Apply N°.0 to dry hair in sections, working the stream directly onto compromised areas from root to tip. Leave on for the recommended time, then apply No.3 Hair Perfector over top; follow with rinsing and your usual shampoo and conditioner routine.

• Use on dry hair for targeted coverage
• Apply No.3 after N°.0 for a two-step repair protocol (No.3 sold separately)
• Rinse and continue with regular cleansing and conditioning

Is this safe for all hair types and colors?

N°.0 is formulated for use on a wide range of hair textures and colors, including color-treated and chemically processed hair. It focuses on rebuilding internal bonds rather than altering color or texture, so it integrates with most at-home and professional regimens.

• Suitable for fine to coarse hair types
• Compatible with colored and chemically treated hair
• Non-altering primer that supports further repair steps

Who this product is for: Olaplex N°.0 is designed for anyone seeking a professional-style boost to their at-home repair routine—ideal for people with weakened, heat- or chemically-stressed hair who want to strengthen strands and improve the results of follow-up treatments. If you regularly color, bleach, heat-styling, or notice breakage and dryness, adding N°.0 as the first step can enhance the effectiveness of your restorative regimen. For best results, pair with No.3 Hair Perfector (sold separately) and use according to the brand’s directions.

Ingredients

Water (Aqua/Eau), Bis-Aminopropyl Diglycol Dimaleate, Phenoxyethanol, Sodium Benzoate