I really don't know about group buying, but I suggest choosing a good hospital to do it and be beautiful for a lifetime. A friend of mine in Shandong heard from their friend that Zhang Huimin, a Korean beauty, had a beautiful double eyelid in a plastic surgery hospital in Jinan, and then she did it. My friend did a good job, too. At that time, I thought Koreans could do it in China, which was technically reliable, so I went. Not disappointed, worthy of reference.