Seriously, this stuff is absolutely amazing. I've bought it before and got the sample, and honestly I could get a sample of this stuff every month and I'd be happy. I have very sensitive skin and normally can only use Dove products on my face, but the Kiehl's Facial Fuel is actually better. However, A LITTLE GOES A LONG WAY. Don't screw up your skin by over-using.
It smells and feels great, definitely gets you up in the morning. Also, interestingly, I have a tendency to get flushed cheeks very easily (Scots-Norse family), but when I use this, my cheeks don't get as red so easily??? So, yeah, I don't know what they're putting in this Facial Fuel, but it's AWESOME.
**IMPORTANT**: it is a CLEANSER, which means its a good idea to use moisturizer afterwards, especially if you have sensitive skin like I do. I'd recommend the corresponding Kiehl's Facial Fuel moisturizer because that stuff is equally awesome. A little goes a long way, but it's super lightweight and not greasy at all.