Olaplex N°.0 Bond Building Pre-Treatment 155 mL – concentrated primer for stronger, protected hair

Olaplex N°.0 is a concentrated bond-building pre-treatment that primes damaged hair for deeper repair and helps strengthen and protect hair integrity when used before No.3.

Designed from Olaplex’s salon technology, N°.0 is a concentrated, quick-penetrating treatment that prepares hair fibers for intensive at-home repair. It’s formulated for targeted application with a precision nozzle so the active ingredients can penetrate and fortify the hair structure prior to the follow-up No.3 Hair Perfector step (sold separately). Use it as the first step of a two-part system to maximize the effect of subsequent repair treatments and extend the life of color and chemical services.

How does N°.0 prepare hair for deeper repair?

N°.0 delivers a high-concentration formula that primes the hair so reparative actives can penetrate more effectively. Applying N°.0 first increases the efficiency of the next treatment step, helping No.3 work deeper into the fiber for enhanced bond-supporting results.

• Concentrated pre-treatment that opens the hair for better absorption
• Nozzle design provides targeted, strand-by-strand application
• Formulated to boost the performance of No.3 Hair Perfector

How should I use N°.0 with No.3 for best results?

Use N°.0 as the first step on dry or damp hair, apply generously from roots to ends, then follow with No.3 after the recommended wait time. The two-step routine is simple: prime with N°.0, follow with No.3, and rinse according to product instructions for a more effective at-home repair protocol.

• Apply N°.0 evenly to hair, using the nozzle for accurate coverage
• Follow with No.3 Hair Perfector (sold separately) as directed
• Rinse and continue with regular shampoo and conditioner if desired

What kinds of hair benefit from Olaplex N°.0?

N°.0 is designed for all hair types that have experienced chemical, thermal, or mechanical damage—color-treated, lightened, heat-styled, or mechanically stressed hair all respond well. It’s especially useful when you want to amplify the corrective effect of an at-home repair routine without changing your regular salon schedule.

• Safe for color-treated and chemically processed hair
• Helps protect strands from further daily styling stress
• Useful as a maintenance step between salon visits

How quickly will I notice a difference after using N°.0?

Individual results vary, but many users report noticeable improvement in hair strength and manageability after completing the two-step routine with No.3. Repeated use as part of a maintenance program helps support longer-term improvements to hair integrity.

• Single-use primes hair for a more effective No.3 treatment
• Visible smoothing and manageability often follow the combined treatment
• Regular use supports cumulative bond-supporting benefits

Who is this for? Olaplex N°.0 is suited for anyone looking to strengthen and protect compromised hair—ideal for people with color-treated, heat-damaged, chemically processed, or frequently styled hair who want a salon-grade pre-treatment at home. Use it as the first step in the Olaplex two-part repair system with No.3 to boost bond-building performance and improve hair resilience and texture over time.

• Strengthens hair integrity
• Protects hair integrity

Ingredients

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