The bond-building primer that makes No. 3 work harder on damaged hair
Olaplex No. 0 Intensive Bond Building Hair Treatment is an at-home bond-building primer for damaged hair, used right before OLAPLEX No. 3 Hair Perfector. It helps repair hair weakened by colouring, bleaching, heat styling, brushing and the environment. Its patented OLAPLEX Bond Building Technology uses a single active molecule, bis-aminopropyl diglycol dimaleate, to relink broken disulfide bonds, the bonds that give hair its strength and structure. Used together with No. 3, the brand reports 68% more repair and hair that is three times stronger, with less breakage, frizz and dullness.
How it works
A watery, lightweight liquid in a spray nozzle bottle. It is sprayed onto dry hair to saturate it, left on for 10 minutes, then No. 3 is applied on top without rinsing. It has no noticeable scent.
Who it suits
- Bleached, coloured or highlighted hair
- Hair damaged by heat tools
- Brittle hair with split ends and frizz
- Anyone already using OLAPLEX No. 3
Worth knowing before you buy: No. 0 is a primer and works best followed by No. 3. On its own it gives a much smaller result, so plan to buy both if you do not have No. 3 already.
How long one bottle lasts
Used once a week on shoulder-length hair, a 155ml bottle lasts about 3 to 4 months. Long or thick hair uses more per treatment.
Complete the routine

OLAPLEX No. 3
The Hair Perfector to apply after No. 0.
Shop →
OLAPLEX No. 4 Shampoo
Bond Maintenance shampoo for daily washes.
Shop →Characteristics
- Texture: liquid spray
- Hair type: all hair types
- Concerns: damaged, weakened, coloured or bleached hair
- When to apply: 1 to 3 times a week, before No. 3
- Age: 16+
- Main benefits: primes hair for No. 3, repairs broken bonds, strengthens the hair, reduces breakage, vegan
- Formulated without: parabens, sulfates, gluten
How to use
Spray onto dry hair until fully saturated and leave on for 10 minutes. Without rinsing, apply OLAPLEX No. 3 on top and leave on for at least 10 minutes more. Rinse, then shampoo and condition. Use 1 to 3 times a week.
Active ingredients
- Bis-aminopropyl diglycol dimaleate: the patented OLAPLEX bond-building molecule that relinks broken disulfide bonds
Ingredients
Water (Aqua) · Bis-Aminopropyl Diglycol Dimaleate · Sodium Benzoate · Phenoxyethanol
Formulations are updated by the manufacturer from time to time. Always check the packaging you receive.
Manufacturer information
Brand: Olaplex, Inc.
Address: 1187 Coast Village Rd, Suite 1-520, Santa Barbara, CA 93108, United States
EAN: 850018802833
