The verdict: This doesn't mean you have to swear off makeup sampling for good. Unless you're looking for a freebie makeover before your GNO, Hammer reminds us of the main goal for testing out the product: to see if it applies well, feels nice, and matches your coloration. Luckily, there is so much more to you than your face. "Instead of applying the products directly to your eyes or lips, try them out the way we [cosmetic chemists] do: Use a sample wand and apply the products to the back of your hand so you spare your face any possible harm." The next time you're at the makeup counter or at Sephora, use these expert tips to find the perfect color. Then, simply wash the products off when you're done, and you'll leave the store with your eyesight and peace of mind.