No. 0 Intensive Bond Building Hair Treatment

What it is: Infused with bond-building technology, this intensive treatment primes hair for No. 3 Hair Repair Perfector (sold separately) to deeply repair, strengthen, and protect hair integrity.

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: 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 a curation of brands committed to evolving the beauty industry. When you see our Clean seal, you can be sure this brand's products are formulated without certain ingredients that are potentially harmful to human health and the environment and also address ingredients clients are concerned about, including phthalates, formaldehyde or formaldehyde releasers, oxybenzone and octinoxate, hydroquinone, triclosan, coal tar, methylisothiazolinone and methylchloroisothiazolinone, insoluble plastic microbeads, 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.