Foundation

According to Wong, when we're not sitting inside next to moisture-sucking radiators, our skin is naturally more hydrated, and becomes more dewy. She also says that winter sunlight is more diffused by clouds, so you can get away with heavier coverage. In the harsh summer sun, you want your makeup to be sheer, dewy, and shimmery.

"In the summer heat, less is more — it means there's less to melt," says Wong. She recommends ditching foundation altogether, and just use concealer on your trouble spots (under the eyes, around the nose, and on any blemishes), or try a tinted moisturizer for more all-over coverage. "The pigment will cover unevenness, and you can kill two birds with one stone if you use one with SPF in it," she says.

AmorePacific Moisture Bound Tinted Treatment Moisturizer SPF 15, $70, available at Neiman Marcus.

Photos: Via Nordstrom, Courtesy of AmorePacific