If your skin is dry, acne-prone, wrinkled, generally lacks luster then it is time to learn about pH balances and their effect on your skin. A pH level of 5.5 is perfect because this allows some acids onto your skin to naturally help prevent acne breakouts. Medix 5.5 anti-aging vitamin C cream promotes smooth, firm, healthy looking skin by reducing the look of sun damage and supporting a strong skin barrier that holds in moisture. Infused with Retinol and Ferulic Acid to improve the look of sagging while leaving your skin feeling hydrated and smooth. Vitamin C cream can be used as a day cream moisturizer