LAUSR

density and diameter, the average increase in those parameters across the literature ranges from 15% to 50%. One limitation of our study is the relatively small number of patients. Another limitation is the lack of a control arm. Future researchmight compare needled with needleless PRP in a split head study to test the 2 delivery methods directly, as well as a saline placebo treatment arm to assess the baseline effect of the needleless jet mechanical stimulation of the scalp. We have shown that needleless PRP for treating androgenic alopecia in men and women is a viable hair restoration option. Patients who fear needles and want a painless experience, but still yearn for the benefits of PRP, may improve with needleless PRP therapy.