*** Skin Secret ***
It always best to avoid high concentrations of vitamin C, alpha, and beta hydroxy acids with retinol to a much lower amount. Why do you ask? A high amount of these actives causes sensitivities and makes skin prone to photoaging. I recommend using a Zinc based sunscreen 15 percent zinc oxide or higher in intense sun climates and after the first application, wait 5 minutes. Next, reapply a tiny amount to the high points of the face. The points are the center of the forehead, apples of cheeks, and the nose and chin. Finally, reapply with a cushion compact such as Sculplla Repair Sun Cushion Hydrating Coverage compact with SPF 50.