Kevin Murphy Everlasting Colour Rinse

A rinse out conditioner for coloured hair, built on an acidic pH. Hair sits slightly acidic by nature, and colour treatments push it alkaline, which is what opens the cuticle and lets colour wash back out. Bringing the pH back down closes that cuticle, and that is the actual mechanism behind the colour lock here, not just a claim on the label.

Apply to hair straight after shampooing, leave it for one to two minutes, then rinse out. In that window the pH balancers add shine and work on condition, softness and hydration while cutting down on further damage, all without adding weight to the hair.

Works best as part of the full Everlasting Colour range, so pair it with the matching shampoo for the complete effect.