192 vs 540 더마 롤러: Which One Is Better for Your Skin? (Complete Guide)
When it comes to at-home microneedling, two of the most popular options are the 192 derma roller and the 540 derma roller. If you’re new to micro-needling, choosing the right needle count can make a big difference in your results, safety, and skin comfort.In this guide, we break down 192 vs 540 derma roller, explain […]