See the Serene Scalp Recovery Exfoliating Treatment as a spring clean for your scalp, working to sweep away build-up, balancing oils, and fighting flakes to keep your hair follicles healthy.. The Science. • Kaolin works to remove grime, excess oil, and dead skin cells, keeping scalp skin and the hair follicles it harbours clear.. • Sarcosine aims to enhance the feel and appearance of damaged hair, helping to improve its body, sheen, and suppleness. Furthermore, it works to cleanse the scalp and hair of all oil and dirt, allowing water to rinse them away easily.. • Rich in antioxidants and fatty acids, Macadamia Seed Oil aims to leave hair stronger and healthier, whilst helping hair to recover from environmental stressors.