The Nioxin Scalp Revitaliser 5 for Medium Thick Natural & Coloured Hair is a lightweight conditioner that has been specially formulated to improve hair’s resilience and control moisture balance. Nioxin have developed systems that are tailored for individuals needs. This Nioxin Scalp Revitaliser 5 for Medium Thick Natural & Coloured Hair is a high performance conditioner that revives your scalp and strengthens hair.