Fibroblast treatment, also known as plasma skin resurfacing, plasma fibroblast, or plasma lift, is a non-invasive cosmetic procedure that tightens and rejuvenates the skin. It uses a handheld device called a plasma pen to create tiny perforations in the skin's surface, which causes the body to produce more collagen and elastin. This results in smoother, firmer skin that looks more youthful.