Don't go to small shops casually, it's unsanitary. Last time I accompanied my children to Weifang Boya Plastic Surgery for double eyelids, I saw floating lips there. I did it by the way. The pigments there are very good, all imported, and the process is wiped with disinfectant used in the hospital, which is quite hygienic. I think the color is beautiful, and the children say it's good. You can go and have a look.