Nioxin System 1 Therapy Gallon amplifies hair texturenProvides intense moisture without over-softening or weighing hair downnSystem 1 is specially designed for normal to thin-looking, fine, natural hairnNioxin Cleanser is a detoxifying cleanser for fine, thin, non-chemically treated hair Formulated with a concentrated blend of botanicals and humectants, this cleanser removes product build up, minerals, pollutants and toxins, clears nutrient pathways at hair follicle sites without stripping essential oils, and provides an optimum scalp environment Bionutrient Actives Cleanser leaves hair growing healthily with body, volume and shine.