Summer calls for fluttery, natural-looking lashes. Opt for a clump-free, waterproof formula that won't run down your face before you've sipped your first margarita. This season, trade your basic mascara for a waterproof formula that's enriched with hydrating vitamins.

Out: Almay Get Up & Grow Mascara, $7.99, creates fluttery, separated lashes. The vitamin-packed ingredient list helps strengthen lashes from the inside out.

In: Almay One Coat Nourishing Waterproof Mascara-Thickening, $6.94, delivers vitamin B5 and aloe for conditioned lashes. In one swipe, you get a false-lash effect that won't deteriorate even in 100 percent humidity.

Lay off the contouring tools to avoid looking overly made-up in the harsh sunlight. When you do need a little extra definition, exchange contouring powders for creamy formulas. Deenihan loves creams over powders in the summer because "the coverage tends to be a bit more sheer, and the finish is dewy and fresh."

Out: Lancôme Star Bronzer Natural Glow Long Lasting Bronzing Powder, $35, delivers silky-smooth, believably sun-kissed skin. If you love this bronzer, try swapping it for Lancôme's new contouring stick.

In: Lancôme Le Duo Contour & Highlighter Stick, $36, contours and highlights in one compact product. For a chiseled look, use the contour stick to draw a shadow into the hollows of your cheeks and blend out with your fingers. The highlighting end delivers an angelic glow to cheekbones, brow bones and the bridge of the nose. Mai loves this highlighting technique for photos (perfect for any weddings and graduation ceremonies you may be attending).

In the summer, replace your powders with cream blushes, which add a glowy finish that won’t cake in the heat.

Out: Nars Blush, $30, gives cheeks sparkle and perky color when you need it in frosty months.

In: Nars The Multiple, $39, will completely refresh your complexion with a pearlescent sheen. Mai says that if you "can tell your complexion looks dull in the mirror, it's time to apply your all-over illuminator." Blend the color onto cheeks, lips and eyes for an on-trend monochrome rosy glow, says Deenihan.

When you're hitting festivals and summer barbeques, you want to look as dewy and fresh as possible. But that doesn't mean you need to toss your primer. This additional makeup layer will help your foundation really adhere to your skin, even when confronted with heat and sweat.

Out: Skindinavia The Makeup Primer Spray, $35, gives a nice base for your foundation.

In: Skindinavia The Makeup Primer Spray Oil Control, $35. The light, hydrating mist gives this primer a cooling sensation, perfect for muggy mornings. The formula controls oil, so you'll look radiant, not greasy. Makeup clings to this base like none other, giving you a flawless complexion all day long.

Summer begs for adventure, and it's a great time to experiment with bold, vibrant makeup too. Swap out your sheer, "wash of tint" lip color for hues that really make a statement in a formula that will stick to your lips from sunup to sundown.

Out: Clinique Chubby Stick Moisturizing Lip Colour Balm, $17, is in handbags all over because of its easy-to-apply, sheer, hydrating tint.

In: Clinique Pop Lip Color + Primer, $18, gives the punchy color you've come to love from Clinique, with a cherry on top: They won't bleed or budge in the heat . The bright shades last up to eight hours because of the added primer, but keep your lips soft and kissable (after all, you never know when that summer fling will come along). Melon Pop is an especially gorgeous peachy shade.