You can order these drugs in bulk from chemical vendors for research purposes (i.e. non-human use). Chemscene, to name just one, sells Rapamacyn at 1440 USD for 5g.
EDIT: I clearly don't recommend you buying this and taking it by the way. You're never quite sure about the purity nor about how to dose this effectively as a layperson without access to a lab. It's also possibly completely illegal, depending on your local laws.
Yeah. By the time you're looking at stuff in the milligram range it becomes quite problematic to ensure consistent doses. I would be confident that I could get an *average* of 1mg/day but I would not be confident I could ensure every day was in .9mg to 1.1mg.
I'm not taking Rapamycin due to costs and immune system concerns, but when researching this niche (specifically, I'm interested in senolytics) I have found this forum with this list of doctors https://age-reversal.net/physician-directory/
Pool your money with others and order in bulk from Asian or Sourh American suppliers. No questions asked. There are specific subreddits/forums for this kind of stuff.
Could you point me to some of those subreddits/forums? A quick search didn't yield anything but I'm probably not familiar with the specific terminology they would use.
EDIT: I clearly don't recommend you buying this and taking it by the way. You're never quite sure about the purity nor about how to dose this effectively as a layperson without access to a lab. It's also possibly completely illegal, depending on your local laws.