Formulated with Redensyl®, Philip B's 'Scalp Booster System' is designed to stimulate growth and improve hair density for a more voluminous, fuller look. - 'Scalp Booster Pre-Wash' is infused with antioxidant Green Tea and Salicylic Acid that breaks down sebum and gently exfoliates your scalp - 'Scalp Booster Shampoo' is enriched with Niacin and Caffeine to increase volume, while Keratin Amino Acids provide nourishment from the root to the ends - 'Scalp Booster Leave-In Conditioner' is a lightweight formula with a blend of plant-based extracts, conditioning Wheat and Rice Amino Acids and Safflower Oleosomes to lock in moisture - 'Silicone Scalp Massager' is to be used in small circular motions while shampooing, to distribute product and gently exfoliate the scalp