No matter what the labels may claim, not all makeup is made for year-round use. Just like you swap out your Hunter boots for sandals and J Brand jeans for maxi skirts, so must your beauty bag get a seasonal overhaul come summer.

Warmer weather means creams and waterproof formulas, not heavy foundation and powder blush. It's the only way to get a truly flawless look with no streaks, smudges, or smears. Don't worry, this change isn't a dramatic one. You won't leave Sephora with your hands filled with large bags, cringing from credit card usage. In fact, you might already have most of these items stashed away under your bathroom sink. Even if you don't, these essentials are definitely reasonable investments -- not a silly, trend splurge.

To be sure we hit every essential on the summer must-have list, we chatted with celebrity makeup artist Tina Turnbow on the top items that create a flawless summer face. Click on to be sure you have all six.