The scorching summer is a true nightmare for oily-skinned individuals. That flawless base makeup you perfected in the morning? By noon, it’s streaky and shiny. Your forehead and nose gleam uncontrollably, and you can’t take a selfie without a heavy filter. Even after washing your face frequently, switching to oil-control foundations, and using setting sprays, the combination of intense heat and sebum overproduction still wins. The real solution to “summer oil slick” skin isn’t about drying it out or suppressing oil at all costs—it’s about achieving a healthy balance of oil and moisture. One of the most effective ways to do this is by incorporating the right oil-control serum into…