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 colour-safe and proven to reduce breakage and strengthen all types of hair.
PH Balance: 6-6.5
We love this product in the salon and recommend it to all our colour guests. Use it alongside No5 and No3
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