A July 2019 study by Boston University School of Medicine found that, “that microneedling works and helps reduce the appearance of acne scars for patients.” And, “"While there have been multiple smaller research studies and case reports which have shown the efficacy of microneedling with acne scarring, there has never been any consistent data and no one decided to take a step back, synthesize and look at what the evidence was telling us as a whole,"