Transepidermal Delivery of Triamcinolone Acetonide or Platelet Rich Plasma Using Either Fractional Carbon Dioxide Laser or Microneedling in Treatment of Alopecia Areata

The study compared the effectiveness of transepidermal delivery of triamcinolone acetonide and platelet-rich plasma (PRP) using either fractional carbon dioxide laser or microneedling in treating alopecia areata. The results indicated that both methods were effective in promoting hair regrowth, with PRP showing slightly better outcomes. The study involved a significant number of participants, enhancing the reliability of the findings. The conclusion suggests that both treatments are viable options for alopecia areata, with PRP potentially offering a slight advantage.