No. 0 Intensive Bond Building Hair Treatment

What it is: A professional-inspired, intensive treatment that primes hair for deeper repair, strengthens, and protects hair integrity leveraging the OLAPLEX™ patented bond-building technology.

Hair Type: Fine, Medium, and Thick

Hair Texture: Coily, Curly, Straight, and Wavy

Hair Concerns:
- Damage, Split Ends, and Breakage
- Shine
- Color Safe

Key Benefits:
- Primes hair to intensify benefits of No. 3 Hair Perfector (sold separately).
- Strengthens weakened bonds deep within the hair strand.
- Repairs hair from chemical, thermal, mechanical, and environmental damage.

Highlighted Ingredients:
- Bis-Aminopropyl Diglycol Dimaleate: Patented Bond Building technology that rebuilds broken and weakened bonds.

Ingredient Callouts: This product is vegan, cruelty-free, and gluten-free.

What Else You Need to Know: Use as the first step in a two-part at-home system with No. 3 Hair Perfector (sold separately) to strengthen and repair all types of damaged hair. No. 0 Intensive Bond Building Hair Treatment contains the highest concentration of the patented bond building technology of any Olaplex at home product. Olaplex products feature first-of-their-kind, patented, bond-building technology, which relinks the broken disulfide bonds caused by chemical, thermal, and mechanical damage to the hair. This formula is made to work with every hair type, providing real, structural repair that works from within.

Clean at Sephora
Clean at Sephora is formulated without a list of over 50 ingredients, including sulfates (SLS and SLES), parabens, phthalates, and more. For the full list, check out the Ingredients tab.

OLAPLEX products are thoroughly tested in accordance with industry standards in-house and by independent third-party laboratories for safety and efficacy.

-Bis-Aminopropyl Diglycol Dimaleate: Patented Bond Building technology that rebuilds broken and weakened bonds.

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

Clean at Sephora products are formulated without the following banned or restricted ingredients (please see Clean at Sephora landing page for full list of specific restrictions and allowances by category – this is not an exhaustive list):
Acrylates, Aluminum Salts, Animal Musks/Fats/Oils, Benzophenones and related compounds, Butoxyethanol, Butylated hydroxyanisole (BHA), Butylated hydroxytulolene (BHT) under 0.1% , Carbon Black or Black 2, Coal Tar, Ethanolamines, Formaldehyde and Formaldehyde Releasing Agents, Hydroquinone, Lead and Lead Acetate, Mercury + Mercury Compounds (Thimerisol), Methoxyethanol, Methyl Cellosolve, Methylchloroisothiazolinone and Methylisothiazolinone, Mineral Oil, Nanomaterials (restrictions for specific nanomaterials only), Oxybenzone, Parabens, Petrolatum and Parrafin (USP grade only), Phenoxyethanol under 1%, Phthalates, Plastic Microbeads, Polyacrylamide & Acrylamide, Resorcinol, Retinyl Palmitate, Styrene, Sulfates, Talc (no detection of asbestos) , Toluene, Triclosan and Triclocarban, Undisclosed Synthetic Fragrance (under 1% and formulated without Acetaldehyde, Acetone, Acetonitrile, Benzalkonium chloride, BPA, EDTA, Methylene chloride, PTFE, PFOA), 1, 4, Dioxane (ingredients must comply with impurity thresholds), Octinoxate, PFAS compounds, Nitromusks and Polycyclic Musks, Ethoxylated Ingredients (including PEGS or polyethylene glycol must meet contamination limits for 1’4 Dioxane and ethylene oxide), Cyclic Silicones, EDTA and derivatives (allowed if no technical substitute under 0.2%)

Suggested Usage:
-Apply slowly to dry hair, distributing evenly from root to tip.
-Work No. 0 into small sections by squeezing the liquid into the hair to be fully absorbed as you go.
-Lightly saturate from root to tip. Hair should be damp, not drenched.
-Let process for 10 minutes.
-Do not rinse.
-For the complete treatment, apply No.3 Hair Perfector (sold separately) over hair with No.0 applied to it, combing through as needed.
-Let process for a minimum of 10 minutes.
-Rinse, shampoo, and condition.
-For best results, use No.4 Shampoo and No.5 Conditioner (each sold separately).