Thanks to our very generous friends at Sephora, we're giving away a different product every day throughout the month of June. Congratulations to jill_elaine, who won yesterday's giveaway for N.V. Perricone Ceramic Skin Smoother Finishing Serum.

This week, we're featuring products exclusively available at Sephora, such as Dior Diorshow Black Out Mascara ($23). If you want intense eyes, look no further—this limited-edition mascara delivers the drama with just one coat. It's infused with black powder to mimic the Dior makeup artists' trick of sprinkling lashes with powder prior to applying mascara. The result: The blackest black lashes you've ever seen. Check out my review on this mascara here.

To enter the giveaway, leave a comment in the comments section below by 5 p.m. PDT / 8 p.m. EDT Wednesday, June 20, 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. Good luck!