Needle RF vs Fraxel comparison: ① needle RF: better for atrophic scars (deeper energy delivery, less pigmentation risk), 70% improvement, ② Fraxel: better for surface pigmentation/texture, 50–60% improvement on scars, higher pigmentation risk in Asian skin, ③ downtime: needle RF 1–3 days, Fraxel 5–7 days, ④ pain: similar with topical numbing. For Asian skin types (higher pigmentation risk), needle RF is generally preferred. Combined with herbal medicine optimizes either approach.