Nº.4FINE BOND MAINTENANCE® SHAMPOO

• Doubles hair volume, adding body, bounce, and lift at the root
• Repairs everyday damage and defends against future breakage
• Strengthens and reinforces bonds for more resilient hair
• Gently cleanses without stripping
• Clinically proven to boost softness and shine.
• Dermatologist tested, vegan, color-safe, and suitable for chemically treated hair.

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. *When Nº.4FINE and Nº.5FINE are used as a system

• 2X:: more volumized hair, instantly & all day
• 2X:: stronger hair at a molecular level
• 60%::less breakage to protect hair length and fullness [body]

*When used as a system with Nº.5FINE Bond Maintenance Shampoo

Help to provide volume and lift at the roots.

Strengthens hair and repairs damage on a molecular level by rebuilding the disulfide bonds that give hair its strength.

Promotes soft, hydrated hair.

Leaves fine hair weightlessly clean and hydrated without over-conditioning.

A little goes a long way with this highly concentrated formula.

250mL: Up to 100 applications*

1000mL: Up to 400 applications*

*Based on the average application size of 2.5mL

Follow with Nº.5FINE Bond Maintenance® Conditioner.

No protein overload. No silicone buildup.

Formulated without Protein, Silicones, Sulfates, SLS/SLES, Phthalates, Phosphates, MIC/MIT, and Paraben.

Aqua/Water/Eau, Sodium Cocoyl Alaninate, Sodium Cocoyl Isethionate, Coco-Glucoside, Lauryl Glucoside, Propanediol, Cocamidopropyl Hydroxysultaine, Glycerin, Acrylates Copolymer, Polyquaternium-80, Bis-Aminopropyl Diglycol Dimaleate, Phenoxyethanol, Sodium Chloride, Parfum/Fragrance, Coconut Acid, Cocamide MIPA, Guar Hydroxypropyltrimonium Chloride, Polyglyceryl-4 Caprate, Polyglyceryl-6 Caprylate, Polyimide-1, Chlorphenesin, Panthenol, Xanthan Gum, Polyquaternium-7, Cetrimonium Chloride, Ethylhexylglycerin, Oryza Sativa (Rice) Bran Extract, Hydrolyzed Quinoa, Trisodium Ethylenediamine Disuccinate, Sarcosine, Pisum Sativum (Pea) Seed Extract, Helianthus Annuus (Sunflower) Extract, Propylene Glycol, Sclerotium Gum, 1,2-Hexanediol, Rosmarinus Officinalis (Rosemary) Leaf Extract, Tocopherol, Sodium Hydroxide, Algin, Sodium Hyaluronate, Sodium Benzoate, Benzyl Alcohol, Tetrasodium Glutamate Diacetate, Potassium Sorbate, Caesalpinia Spinosa Fruit Extract, Helianthus Annuus (Sunflower) Sprout Extract, Citric Acid, Hexyl Cinnamal, Limonene, Citral, Yellow 5 (CI 19140), Yellow 6 (CI 15985)