Wrinkles, acne scars, enlarged pores, and stretch marks can make people feel self-conscious about the uneven appearance of their skin. Dermatologists have a variety of devices and medications at their disposal to help improve these skin conditions—from lasers to chemical peels to microdermabrasion. Another minimally invasive option is microneedling, a nonsurgical procedure. Microneedling, also called percutaneous collagen induction therapy, is performed using a handheld, drum- or pen-shaped device, electrically powered, with tiny needles that make precise, microscopic punctures in the skin. These “micro-injuries” do not leave scars; they work by helping to stimulate the skin to repair itself naturally through a process called dermal remodeling. 
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