Olaplex No.3 Bond Building Hair Perfector — 100 mL concentrated pre-shampoo treatment, repairs & strengthens hair

Olaplex No. 3 is an at-home bond-building pre-shampoo treatment that rebuilds broken hair bonds to strengthen and reduce breakage.

Designed from Olaplex’s patented bond-building technology, No. 3 is a concentrated treatment you apply before shampooing to repair structural damage inside the hair strand. It contains the same active molecule used in Olaplex professional products to reconnect weakened disulfide bonds, improving manageability and resilience without weighing hair down. The formula is free from parabens, sulfates, phthalates, and is cruelty-free and nut-free, suitable for a wide variety of hair patterns and textures.

How quickly will I notice stronger hair after using No. 3?

Many users report improved strength and manageability after their first application, especially when No. 3 is used as part of an Olaplex at-home routine. Results depend on the level of prior damage and frequency of use, but the treatment is formulated for visible structural support from the inside out.

• Clinically supported improvements when combined with Olaplex Nº4 shampoo
• Effective as a single-use boost or as a weekly repair protocol
• Works for chemically treated, heat-styled, and mechanically stressed hair

What’s the correct way to use this concentrated bond builder?

No. 3 is applied to damp, towel-dried hair before shampooing. Leave the treatment on for a recommended minimum of a few minutes — longer for more extensive repair — then rinse and continue with your shampoo and conditioner routine.

• Apply a generous amount from roots to ends on damp hair
• Allow the product to sit for at least the suggested time for deeper repair
• Rinse, then follow with your regular shampoo and conditioning steps

Will No. 3 work on my hair type — from coily to straight?

No. 3 is formulated to be compatible with all hair textures, including coily, curly, wavy, and straight. Because it targets broken internal bonds rather than surface conditioning alone, it addresses the structural causes of weakness that occur across different hair types.

• Safe for color-treated, chemically processed, and heat-styled hair
• Lightweight enough for fine hair yet nourishing for thicker textures
• Helps reduce breakage and improves comb-through regardless of curl pattern

Which ingredients deliver the bond-rebuilding action?

The signature active in Olaplex formulas is a bis-aminopropyl diglycol dimaleate derivative that works on a molecular level to reconnect broken disulfide bonds. No. 3 also includes conditioning and antioxidant-support ingredients to improve feel and appearance while supporting repair.

• Patented bond-building active restores internal hair structure
• Supports with vitamins and lightweight oils for improved texture
• Formulated without sulfates, parabens, phthalates, and without animal testing

Who is this for: Olaplex No. 3 is ideal for people wanting salon-grade repair at home—anyone with chemically processed, heat-damaged, or fragile hair seeking a targeted treatment to rebuild strength and minimize breakage. It suits fine through coarse textures, all curl patterns, and anyone looking to extend the life and appearance of color or style. Use it as a weekly restorative step or as-needed when hair feels weakened or stressed.

Ingredients

Water (Aqua/Eau), Bis-Aminopropyl Diglycol Dimaleate, Propylene Glycol, Cetearyl Alcohol, Behentrimonium Methosulfate, Cetyl Alcohol, Phenoxyethanol, Glycerin, Hydroxyethyl Ethylcellulose, Stearamidopropyl Dimethylamine , Quaternium-91, Sodium Benzoate, Cetrimonium Methosulfate, Cetrimonium Chloride, Fragrance (Parfum), Polyquaternium-37, Tetrasodium EDTA, Benzyl Benzoate, Etidronic Acid, Ascorbic Acid, Phytantriol, Tocopheryl Acetate, Aloe Barbadensis Leaf Juice, Panthenol, Simmondsia Chinensis (Jojoba) Seed Oil, Citric Acid, Potassium Sorbate