DescriptionsObagi Nu-Derm Toner is formulated with alum (a natural astringent), the Toner adjusts the skin's pH for optimal penetration of the System's treatment applications. Product IngredientsPurified water, aloe barbadensis gel, witch hazel distillate, potassium alum, sodium PCA panthenol. DMDM hydantion, polysorbate 80, allantoin, sage extract, calendula officinalis extract, saponis, fragrance, FD&C blue #1 Suggested UseApply Obagi Nu-Derm Tonerto face and neck with moist fingertips. Massage in gentle, circular motions until lather is developed. Rinse completely with lukewarm water. NoteObagi System skin care products are prescription strength, or pharmaceutical quality products that work at the cellular level to improve the skin cell function. It is important to contact your Physician or Skin Care Specialist prior to use and purchase.Weight6.7fl oz / 200ml