In contrast to cosmetic grade microneedling, medical needling uses longer needles (.5 mm and longer) to stimulate the dermis, your skin’s deeper layers. These longer needles (up to 2.5 mm) reach the deep dermis, making it possible to treat acne and other scars by breaking up scar tissue and inducing skin remodeling.
Medical needling is always performed by a licensed practitioner and offers minimal risk of infection and scarring when performed properly.
Sterile, disposable needle cartridges are used, reducing the risk of cross-contamination, and the physician may apply topical anesthetic to the skin before the procedure to reduce discomfort.
The use of medical needling has been found to be effective in reducing the appearance of acne scarring. One 2014 study examined the effectiveness of three medical needling treatments (one month apart) on acne scars in 15 adults. Results suggested that medical needling can significantly improve the appearance of acne scars six months after treatments.
As long as you don’t have any active infections, lesions, or wound healing problems, nearly anyone can have this procedure performed. If you have active acne or tender acne cysts, do not needle over these areas. This will aggravate the area, which may lead to infection.