Don't forget: For this week's Beauty Mark It challenge, I'm asking you to share your preferred or not-so-preferred foundation choices. Now that you know how to test your foundation [1], now it's time to review it!

The best part about reviewing? You could be entered for a chance to receive Bella's Ultimate Beauty Getaway [2]! So get to it — a few days of beauty pampering in San Francisco is worth it.

Whether it's a matte, sheer, or dewy finish, or comes in a liquid [3], cream [4], or powder [5] formulation, let me know what you're thinking. Just follow one (or all three) of the links above and review to your heart's delight. Your star-rated opinion will be added to our ever-expanding Product Reviews [6] page, and I'll feature the top three foundation reviews next Tuesday.