Setting aside that you don't even need these levels unless something is clearly not going as desired, saliva and urine tests do exist but no doctors seem to even be aware of this. Unlimited genocide on gatekeeper endocrinologists. They can never find a vein on me so I just have to stew for an hour as they poke and prod me unsuccessfully until either I or the lab tech gives up and they tell me they're not going to refill my prescription without a blood test.

JUST FUCKING REFILL IT, IT'S NOT EVEN MY FAULT, WHY ARE YOU PUNISHING ME FOR THIS!

I feel like they'd be more convenient for me because I am so forgetful that it's now been over a month since I've taken my HRT, and my prescription lapsed with 5 months worth of refills remaining.

What should I be aware of, other than the cost difference?