I have a lip corner filler procedure and would like to inquire about verifying the authenticity of the product and the correct dosage, as well as the results.

I am writing this inquiry because I heard that Maypure is a place that honestly uses genuine products and the correct dosages while looking into cosmetic procedures for the first time in my life. My mouth corners tend to droop, giving me a gloomy impression, so I would like to try lip fillers first. I am wondering if you personally demonstrate the process of opening the product packaging right in front of me before the procedure. I am also a bit concerned about potential side effects, such as unnatural lip expressions or asymmetry, after the first filler injection. I would like to know if you carefully adjust the injection to ensure natural volume and lip symmetry. I would also appreciate it if you could tell me how long the effects typically last, and if it is possible to complete the consultation and filler procedure in a one-stop process on the same day without a long waiting time.