Basically a Bronzer
I got this as a part of the BE Starter Kit. According to the information that came with the kit, Warmth is not supposed to be a bronzer, but a complexion booster that adds a warm "glow" to your skin. I'm not sure what that means, but it looks like bronzer on me.
They recommend you only use a very tiny bit, as in hardly any according to the DVD, on your kabuki brush to apply. I think I always get too much on my brush, so perhaps that's why it looks like bronzer on me -- but it could also be because I am very fair.
Either way, I really like the effect it has on my skin, and I think it leaves a lovely color and can also serve as quite a natural blush. It doesn't have any noticeable shimmer, so it is a nice alternative to a lot of the bronzers out there.
And, like all BE products, its buildable, so if you want more color, you can always apply more :) No more problems with getting a bronzer that just won't work!
However, it isn't anything that I couldn't get in a bronzer at the drugstore, probably. So, despite the quality and my satisfaction, I'm just giving it 3 stars.