Between the surf, sun, sweat and heat, summer poses some interesting challenges to your makeup. And because you probably don't want to feel like your makeup is sliding down your face or look too done up for the beach, the key to feeling your best this season is keeping your formulas simple and light.

That's why it's essential to pare down your beauty routine, says celebrity makeup artist Jeannie Mai, ambassador of Unilever's Rinse. Recycle. Reimagine. campaign. But that doesn't mean you have to go bare-faced. Instead, take stock of your beauty inventory and choose the products that will give you a carefree glow.

These summer switch-ups let you stay loyal to your favorite brand while trying something new. We found the best summer makeup products that will take you from sweltering subway platform to rooftop pool party without melting.

Swap dark, matte lips for something juicy and bright. "Stick to lip stains or glosses for the summer," says Kelsey Deenihan, celebrity makeup artist and creative director behind Mark's new sweat-proof summer collection. Brighter, shinier lip products will give you a "fresh, pouty, effortless look," she says.

Out: Marc Jacobs Beauty Kiss Pop Lip Color Stick, $28, offers beautiful opaque, matte pigment to punch up dreary winter days.

In: Marc Jacobs Beauty Enamored Hi-Shine Lip Lacquer, $28, gives lips an iridescent sheen and has major staying power. Plus, the formula feels smooth and creamy without being sticky. We like Some Girls, because the pink tone flatters everyone, and the shade plays well with a ton of eye makeup hues.

As summer temperatures skyrocket, you don't want to fuss with messy pots of eye shadow that crease in the heat. A long-wearing shadow pencil that you can throw in your purse will stand up better to sweaty, sticky days.

Out: Though Make Up For Ever Artist Shadow, $21, is known for its superblendable, rich pigment, it can be a tad too heavy for summer.

In: Make Up For Ever Aqua Matic, $21, lets you create quick, colorful looks on the go. The creaseless formula is waterproof, so there's no need to fear the surf. Deenihan says she loves a good petal shade on the eyes for summer. Try Metallic Pink to cash in on this trend.

On hot, humid days, you need a brow product that won't trickle into your eyes if you break a sweat.

Out: Bobbi Brown Natural Brow Shaper & Hair Touch Up, $24, is a quick and easy cream formula for subtle definition.

In: Bobbi Brown Perfectly Defined Long-Wear Brow Pencil, $42, has a slanted, tiny tip so you can feather in individual hairs. Even better: The wax-based formula can stand up to water, sweat and humidity. The 16-hour wear of these pencils will take you from the office to a sunset happy hour without a single touch-up.

A matte complexion looks completely out of place in the summer sun. You want a light, oil-free foundation that appears naturally glowy.

Out: CoverGirl Stay Fabulous 3-in-1 Foundation, $11.99, does the trick when you need long-wearing, matte, full coverage.

In: CoverGirl Outlast Stay Luminous Foundation, $11.30, gives skin an illuminated finish that lasts all day. And there's no need to stress about breakouts: An oil-free foundation like this one won't clog pores.