The effect is very good, I did 21 times, I did about 10 times for my friend. I am very happy with the results. I don't know if it is bad for 暗粒 or not, because I don't have 暗粒. I notice that if I have acne, it will make it bigger, but I don't worry about it, the acne eventually will be gone. My face is more firm now and my friend's skin color is more even and texture is better. I am thinking about to buy the Tripollar Pose too, the only problem is if I don't know I will have the patient to do it every week.