The best formula for you is an oil-free liquid or cream-to-powder foundation

Why: "It's tricky to find foundation for acne-prone skin since you want your skin to breathe, but still need heavy coverage in certain areas," says Barose. So, since "acne-prone skin is usually oily, use oil-free formulas to prevent breakouts," says Stiles.

Products to try: For light/medium coverage try Clinique Stay-True Makeup Oil-Free Formula, $21 or Bobbi Brown Oil-Free Even Finish Foundation SPF 15, $42. To cover up blemishes, acne scars, etc. opt for an oil-free cream-to-powder foundation like Benefit Some Kind-A Gorgeous, $28 -- its oil-free, sheer texture can be built and layered for heavier coverage, says Barose. For best results, use it with a sponge and add heavier concealer on areas that need even more coverage.

Tip: "Really pay attention to your skin care program. Use toner with salicylic acid to keep pores clean, and a light, oil-free moisturizer. Or skip moisturizer all together," says Stiles. She also recommends using a concealer that has salicylic acid in it to "aid in clearing your skin while covering spots," she says.