Occasionally it will leave a bit of a residue, which looks the way Elmer's school glue does if it dries on your hands. This is easily brushed off once completely dry, without removing the effects of the product. Now I'm no scientist, or even a cosmetologist, but after a little research, and a conversation with my local Origin's salesperson, this is what I have come up with. Now before you can really understand how an acne product works, you need to know all the gory details of exactly what a pimple is. Basically, extra oil combines with dead skin cells and clogs your pores.
Bacteria then forms in the pores, causing red, inflamed bumps, filled with a small amount of pus.
Spot Remover has three ingredient which work to eliminate what causes the pimple, and to clear it up. Salicylic acid is used in many top acne products on the market today, and is a proven acne fighter. Buds - Clove buds, most commonly used in toothache medicine, is known to fight the bacteria below the pimples surface, getting at the source of the inflammation and redness. The sooner the bacteria is gone, the sooner the pimple can heal. It also has a soothing effect on the skin.