This is my first skin tightening procedure. I would like to inquire about verifying the authenticity of the double chin lifting equipment and the effectiveness.

I am writing this inquiry because I heard that Maypure honestly uses genuine products and the correct dosages while looking into cosmetic procedures for the first time in my life. My chin tends to sag, and I would like to try a double chin lift first to improve my gloomy-looking appearance. I am wondering if you open the tips or verify the authenticity of the products in front of me before the procedure. Also, I am a bit worried about potential side effects, such as an unnatural facial expression or swelling, after my first double chin lift. I would also like to know if you carefully adjust the injections to ensure natural-looking volume and symmetry. Finally, I am curious about how long the effects of a double chin lift typically last.