While researching contouring injections, I heard that the ingredients used vary from clinic to clinic. Some places use ready-made products, while others have the director personally formulate them, and I'm worried because I heard this makes a big difference in the results. I am currently looking at two places: Dr. Son Yuna Clinic and Yuyu Clinic. Dr. Son Yuna has quite a few reviews, and Yuyu Clinic caught my eye because the director personally prepares the ingredients. I heard that places without steroids are better, but I'm wondering if this also varies by clinic. For those of you who have received contouring injections, what did you consider most important when choosing a clinic? Do the ingredients or formulation methods really make a difference in the results...?