RUSK Sensories Calm Guarana & Ginger Nourishing Shampoo 13.5oz awakens the senses and nourishes troubled, stressed hair. Formulated with guarana extract to add a healthy, natural sheen and ginger extract to maintain the natural moisture balance. All rusk sensories feature Compressed Formula Technology. CFT enhances and expands the user's sensory experience. Use 30-50% less product for twice the performance.