Because I have very sensitive skin, it was difficult to see results from skin treatments, but LDM is truly excellent>>>> First of all, it feels like it doesn't put a strain on my skin at all, and it's a treatment optimized for moisturizing and soothing, so I saw a lot of results in the winter!! Actually, 24 minutes was more effective than 12 minutes, and I felt it right away after receiving it. It felt moisturized and soothing!! Highly recommended~!