In Your 40s
"Once you get to a certain age, it's more important to look at the concentration of active ingredients that you're using, than the product itself," adds Friedman. "Women who are predisposed to dry, sensitive skin should look for lower levels of actives, like two percent salicylic acid, when selecting spot treatments." We like this formula because it tightens pores (another telltale sign of aging) as it erases pesky pimples.
La Roche-Posay Effaclar K Daily Renovating Anti-Relapse Acne Treatment, $27.50; amazon.com