DETAILS
- This is the best shampoo for fine hair.
- Clinically proven to double your hair’s volume instantly, maintaining lift all day while repairing everyday damage in 1 wash.
- The ultra-lite lather gently lifts away buildup, never stripping—leaving your hair weightlessly clean, soft, shiny, and full of body and bounce.
- Formulated for straight, wavy, curly, or coily hair with fine texture– plus all porosity levels.
- Dermatologist Tested. Vegan. Color-safe and suitable for chemically treated hair.
PRO TIP: For complete repair from all types of damage, use Nº.3PLUS Complete Repair Pre-Shampoo Treatment weekly.
INGREDIENTS
Flexible Polymers
Help to provide volume and lift at the roots.
Patented OLAPLEX Bond Building Technology™
Strengthens hair and repairs damage on a molecular level by rebuilding the disulfide bonds that give hair its strength.
Low Molecular Weight Hyaluronic Acid
Promotes soft, hydrated hair.
Hydra-Balancing Matrix
Leaves fine hair weightlessly clean and hydrated without over-conditioning.
FREE OF: Protein, Silicones, Sulfates, SLS/SLES, Phthalates, Phosphates, MIC/MIT, and Parabens
Frequently Asked Questions
How is the new formulation of Nº.4FINE SHAMPOO different from the original version?
- While both versions build hair bonds, there are key differences between our fine hair shampoo and the original.
- Nº.4FINE SHAMPOO is an ultra-light formula clinically proven to instantly volumize and strengthen fine hair types and all textures.
- Nº.4 BOND MAINTENANCE® SHAMPOO is a highly concentrated, reparative formula that hydrates and smooths while helping to prevent breakage and frizz for all hair types and textures.
Can I use other OLAPLEX styling products with Nº.4FINE SHAMPOO?
Yes. All OLAPLEX products are compatible and designed to work well together. For a customized OLAPLEX routine, take our Hair Quiz.
Can I mix and match Nº.4FINE SHAMPOO with other conditioners?
Yes. You can mix and match Nº.4FINE SHAMPOO with other OLAPLEX conditioners to create a customized routine for your specific hair-care needs.
Is Nº.4FINE SHAMPOO silicone-free and color-safe?
Yes. Nº.4FINE SHAMPOO is silicone-free and color-safe.
What is the difference between fine and thin hair?
Fine hair refers to hair texture, while thin hair refers to hair density. Fine hair is the most fragile hair texture. You might have fine hair if you roll a strand between your fingers and can barely feel it. Thin hair means that there is a lower density of hair. Check out these tips for managing fine or thin hair.



























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