After passing both the animal safety step and the human safety step, the dermatologist team at Chulalongkorn University Medical School has finally started the clinical testing on the retinal-loaded Detachable Dissolvable Microneedle patches to treat acne scars on 20 volunteers. The volunteers will be observed for at least six months to assess scar improvement and the possibility of late scar recurrence, which is occasionally found in filler injection treatments.