A lightweight bond-building shampoo that cleanses fine hair without flattening it
Olaplex Nº4 Bond Maintenance Shampoo for Fine Hair is a lightweight daily shampoo for fine hair that wants a thorough cleanse without losing volume. It uses Olaplex's patented Bond Building Technology (bis-aminopropyl diglycol dimaleate) to relink broken bonds while cleansing gently, so fine strands stay light, bouncy and full of movement instead of feeling coated or weighed down.
The texture
A light, clear-gel shampoo that lathers easily and rinses out completely, leaving no residue on fine strands.
Who it suits
- Fine or flat hair that lacks body
- Fine hair damaged by color, bleach or heat
- People who find classic shampoos too heavy
- Daily or frequent washing
Worth knowing before you buy: On very dry or thick hair this shampoo may not be rich enough; the regular Nº4 Bond Maintenance Shampoo is better suited there.
How long one bottle lasts
Used three or four times a week, the 100ml bottle lasts about four to six weeks; a good travel size.
Complete the routine

No.5 Fine Conditioner
The matching lightweight conditioner.
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Fine Hair Mask
A weekly treatment for extra nourishment.
Shop →Characteristics
- Texture: light gel
- Hair type: fine hair, including color-treated
- Hair concerns: lack of volume, damage
- When to apply: in place of a regular shampoo
- Main benefits: cleanses without weighing hair down, helps protect bonds, adds body
- Formulated without: parabens
How to use
Wet hair, apply, work into a lather and leave for a minute before rinsing. Follow with Nº5 Fine conditioner.
Active ingredients
- Bis-Aminopropyl Diglycol Dimaleate: Olaplex's patented bond builder that relinks broken disulfide bonds
Manufacturer information
Brand: Olaplex, Inc.
Address: 1187 Coast Village Rd, Suite 1-520, Santa Barbara, CA 93108, United States
EAN: 850056933582
