19. Use Less Foundation.
Dermatologists believe that using heavy amounts of foundation settles into the wrinkles and fine lines on your face, leading to skin that seems to wear the signs of aging more prominently (via National Institute of Health). They recommend that you not use a foundation with a powder base and use a primer before applying the foundation. A primer can help smooth out the fine lines and wrinkles so that the foundation does not settle in so heavily into the creases of your skin (via Everyday Health).