Excellence is a Permanent Hair Colour. The only hair colour which comes with the Complete Kit which protects, strengthens and replenishes hair. Pro-keratin: Excellence Crme Revitalizes color. Hair feels Stronger. Ceramide: Enriched with Ceramide, a replica of hairs natural cement, leaves the hair looking Smoother and feeling Protected. Collagen: Known for its firming properties collagen-infused Excellence Crme leaves hair feeling replenished.