Do you, like us, obsessively inspect your skin in the mirror, and at the site of a new blemish, wrinkle,or age spot, lament, "Why? Why me?" Sephora is here to tell you exactly that. From the "whys" to the "hows" to the "what-ifs," they're answering all of your frequently asked questions—even those you're embarassed to ask. Even better, every day we're giving away one product to help you implement their expertise. Congratulations to Redsugar, who won yesterday's giveaway for a L'Occitane Shea Butter Hand Cream.

Today's question: Is there an easy way to whiten my teeth?

The answer: Yes, and you won't believe how easy it is.GoSmile Advanced Formula B1 Tooth Whitening on the Go is ingeniously simple. Each ampoule contains a safe, gently whitening agent that lightens and brightens teeth. Just toss one in your purse, rub it on your teeth, and you'll get a brighter, white smile on the run.

To enter today's giveaway for this whitening kit, leave a comment in the comments section below by 5 p.m. PDT / 8 p.m. EDT Tuesday, July 10, and we'll announce the winner tomorrow when we post the next giveaway. Please, only ONE comment per person; duplicate comments will be discarded, so commenting more than once won't up your chances of winning. You must be a TeamSugar member to comment, so if you're not a member, please register here for an account. For all of the rules and regulations, click here.