What is it?
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.
How to use?
Apply to damp hair, work through hair from root to tip creating a lather. Wash off then follow with the {No 5 Bond Maintenance Conditioner}. Can be used alongside the weekly {No 3 Hair Perfector} treatment.