Guarana & Ginger Leave-In Conditioner Detangles troubled, stressed hair. Rusk® Sensories. Calm Treatment Guarana and Ginger Nourishing Treatment is a lightweight conditioner that removes tangles as it improves the feel and manageability of the hair. Does not weigh hair down or make it limp. Guarana extract adds a healthy, natural sheen and ginger extract maintains hair s natural moisture balance. All Rusk Sensories feature CFT to enhance and expand the user s sensory experience. Compressed formulas expand with the addition of water and gentle manipulation, transforming their physical appearance and releasi.