I get glutathione for 47.00 per ten vials of 1200mg each from filler outlet (Korean). There are other IV meds there, including vitamin c. There is a cheaper brand of glutathione for 36.00, but I prefer the brand Luthione as it is the main brand used in hospitals. This is one of the few peps I don't filter.
As for some anecdotal information: I am a mental health therapist, a generalist in family medicine, so my focus is not necessarily on weight, yet of my 100+ patients, I know that 5 of them are open about being on Brello's GLP1s. As for true grey, I don't know, but I am someone who started on Brand, then went to Brello, then found my way here.
I do botox at home, I also do mesotherapy and microneedling. Check out the reddit forums, a good one is
https://www.reddit.com/r/DIYaesthetics/. I don't do fillers or anything that can scar or mess up my face forever. There are a lot of ebooks you can download from that reddit regarding botox, microneedling, mesotherapy, etc. Most of it comes from Korea, but I have started paying a lot more and buying it from an American warehouse so that I can avoid any potential problems with customs and the FDA. If you are going to do botox, get it soon, some companies are no longer shipping it to USA due to recent legal threats. The USA seems to care more about botox than Fentanyl.