I got a free sample of Kiss Beauty Lip Maximizer from Pinchme.com, and decided to give it a go on my....*ahem* "petite" lips. I tried it on bare lips for 5 minutes, as per the instructions. It burned like a very spicy hot sauce- habañero or serrano, and I noticed a slight plumping effect, mostly my lower lip. Im not sure its worth the discomfort, but it does kinda work for us lip challenged folks of the beauty world.