N°4 Shampoo repairs and protects hair from everyday stresses — including damaged hair, split ends, and frizz — by re-linking broken bonds. Leaves hair easier to manage, shinier and healthier with each use. N°4 is color-safe and proven to reduce breakage and strengthen all types of hair.
PH Balance: 6-6.5
From the people
“The quality of this product is unbelievable...I have frizz from breakage and some dull dryness from coloring and the shampoo and conditioner delivered on their promises and then some. My hair is so soft and smooth. Can't say enough how much I love these products.”
Concentrate on roots.
Formulated for daily or every wash use.
All hair types, especially those needing clarifying or oil control.
Free of DEA, Aldehydes and Formaldehyde
The Original Bond Builder
The only patented system to noticeably repair extreme damage—turn dry, brittle hair into soft, shiny, and more resilient hair.
How It Works
A single molecule, free of silicones and oils, dramatically improves the hair strength, protects from within, and provides immediate results.