By now, you’ve likely heard the praise for microneedling — a medical facial that’s replacing the classic spa facial that feels nice but doesn’t do much. Microneedling is a procedure that can be conducted by a cosmetic surgeon, dermatologist, esthetician, or even by yourself. So, what do you need to know before you do it? First, try not to over exfoliate before you microneedle, as your skin could be too sensitive for the treatment.