The Nioxin System 1 Scalp Revitalizer is designed to refresh the scalp environment and deliver denser-looking hair. This leave-in treatment works to reduce hair loss due to breakage and strengthen the hair fiber from the root. It is intended for use as part of a complete three-part Nioxin system to enhance hair fullness and is suitable for those with fine, natural, noticeably thinning hair, providing lightweight conditioning and renewed vitality to the scalp and hair.