Anna Sui Rouge Jar in Rouge Godet ($15) is a lip gloss that goes on crystal clear and then turns into a light, cherry tint when it comes in contact with your body heat. It works much the same way a mood gloss or one of these presto-chango cheek products do.
What's great about this gloss is that it has no sparkle and no gooey stickiness. It feels a lot like a lip balm, but you get the benefit of also getting a natural flush color stain that lingers longer than a regular gloss or lipstick would. Also, it's really moisturizing: It softens your lips while also making them look nice and shiny.
The only complaint I have is about the strong smell. It's flowery and very perfumey, and since it's right under your nose, it takes a little while to get used to. But overall, this product is a grand slam—I highly recommend it. If you've tried it, do you agree?