I've used this on my face and entire body. The bottle will run out extremely fast though. It's more worth it to use this only on the legs like it was made for. Or the face where it looks really nice and has a nice not overpowering smell.
I used the product on other areas of my body (arms, neck, chest). The Sephora associate who sold the product to me did not suggest the face, just because it may appear darker than other areas of the body. She suggested a brush on bronzer instead. I don't see why you couldn't use a small amount on your face.