As with most things in life, there are few absolutes—the summer cream that’s right for you and your location depends not just on temperature, but also on humidity. Why do we have two summer creams? Thinking of summer, one thing comes to mind—record-setting heat. But heat comes in many degrees: There’s the blistering dry heat …
Active—or performance—ingredients get all the credit because they promote visible changes in the skin, but inactive—or functional—ingredients make all the difference when it comes to external aging. Active = Performance You see “active ingredients” written on prescription treatments, sunscreen, and other skin products that penetrate beyond the skin barrier. You don’t see these drug facts …
