The Olaplex No.0 Intensive Bond Building Hair Treatment is a salon-inspired pre-treatment that primes dry, damaged hair for deeper repair before you apply No.3 Hair Perfector. Powered by the highest concentration of Olaplex patented bond-building technology available in an at-home product, this lightweight liquid works from within to strengthen strands, reduce the look of breakage, and leave hair visibly smoother and healthier.

Why This Treatment Works

Hair damage from coloring, bleaching, heat styling, and daily environmental stress breaks the internal disulfide bonds that give strands their strength. Olaplex No.0 saturates the hair with a concentrated dose of bond-building actives, jumpstarting repair deep within the strand. When layered under No.3 Hair Perfector, the two work as a system that is proven to deliver 68% more repair and 3x stronger hair in a single use.

Ideal For

Olaplex No.0 is made for anyone with visibly damaged, over-processed, or fragile hair who wants salon-level repair at home. It is especially suited to bleached, colored, and heat-styled hair, and to strands stressed by the UAE climate of sun, heat, and hard water. Note that No.0 is designed to be used with No.3 Hair Perfector rather than on its own for full results.

Olaplex No.0 keeps its formula deliberately simple, built around one powerful active:

• Bis-Aminopropyl Diglycol Dimaleate: the single patented Olaplex molecule that relinks broken disulfide bonds inside the hair, rebuilding strength and structure from the core. No.0 delivers it in the highest concentration of any take-home Olaplex product.

• Water-based, lightweight formula: free of silicones and oils so it absorbs quickly and primes hair without weighing it down.

The formula is color-safe, vegan, and made without sulfates, parabens, phthalates, phosphates, and added protein, making it suitable for chemically treated and sensitized hair.

1. Apply Olaplex No.0 to dry hair, distributing evenly from roots to ends until strands are damp but not dripping.

2. Leave on for 10 minutes. Do not rinse.

3. Apply No.3 Hair Perfector directly over the top, comb through, and leave for another 10 minutes.

4. Rinse thoroughly, then cleanse with No.4 Shampoo and No.5 Conditioner.

Use the two-part system once a week, or two to three times a week for very damaged hair. One bottle lasts around 3 to 6 applications.