Beauty Do They Really Work? 18 Big-Claim Beauty Products Put To the Test By InStyle Editors InStyle Editors Facebook Instagram Twitter Our editors and writers comprise decades of expertise across the beauty, fashion, lifestyle and wellness spaces in print and digital. We prioritize journalistic integrity, factual accuracy, and also having fun with every story we share. InStyle's editorial guidelines Published on September 2, 2013 @ 02:07PM Pin Share Tweet Email Photo: Brian Henn (3); Greg Marino Is your bathroom cabinet filled with beauty products you've used once—and never again? Yeah, we thought so. To make sure your next purchase lives up to the hype, we gathered a team of seen-it-all experts and up-for-anything staffers to put a slew of innovative offerings to the test. From whitening teeth while washing dishes to flat-ironing hair at the beach (seriously), the trials are over and the results are in. Check out which of these goodies are worthy of your investment—and a spot on your shelf. Click the photo to see all of the products we tested! More:• Hit Fall’s Biggest Beauty Trends With 15 Makeup Finds Under $15• The Nine Most-Wearable Beauty Trends for Fall 2013• Having a Moment: Metallic Nail Polishes — See Our Favorites!