I saw this question many times when I researched the community conversations.It is now 11/2020 and there is conversations dating back to 2016/2017?? I just posed this question on the Drs q/a and I'm curious to see if and what responses i get. My dr (plastic surgeon) told me one year. She is conservative in her thinking, but also very honest. I have been her training model over a 20+ year period and trust her. Disappointing, huh? Love feedback