In clinical trials, 88% of people get at least 50% improvement in their acne 6 months  after the final session, with 91% of people showing at least partial response.  -36% of patients have clear or almost clear skin.  -47% of patients have significant improvement from baseline.  Regarding severe nodular acne, there was 97% reduction six months after the last  treatment!  Inflammatory lesions (pimples, cysts, nodules) respond better to AviClear than  blackheads (clogged pores).