The Contender: Clarins Everlasting Foundation + SPF 15 in Hazelnut, $40; nordstrom.com
Time Claim: 18 Hours
How It Works: A combination of silicone-resin polymers and clay helps the liquid formulation hold comfortably on to skin. The addition of bamboo powder absorbs excess sebum so oils don't cause the base to slip and fade.
Our Tests Revealed: This creamy base didn't budge from early morning until the time it was wiped off before bed. At the end of a late night, a tester said, "My makeup looked almost exactly as it did when I put it on. The coverage had only slightly faded."
For more, pick up the June issue of InStyle, available on newsstands and for digital download now.