No. 4Fine: 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. *When used as a system with Nº. 5FINE Bond Maintenance Conditioner No. 5Fine: This is the best conditioner for fine hair. Clinically proven to double your hair's volume instantly, maintaining lift all day while repairing everyday damage in 1 wash. The silky formula replenishes weightless hydration and dramatically improves detangling- leaving your hair more manageable, soft, smooth 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 N°. 3PLUS Complete Repair Pre-Shampoo Treatment weekly. *When used as a system with N°. 4FINE Bond Maintenance Shampoo. | Olaplex Fine Volumizing Bundle | Dermstore