They are supplied in sterile injectable form
Oral & even IM treatment with Cyano-B12 were ineffective, but IM treatment with your Methyl-B12 so far appears to be very effective
That stability and its broad use in research make it a common base in multi-compound blends (GLOW, KLOW) and a frequent pairing with TB-500
Doctors also dont check B12 levels during routine blood work as most of the time its stored in the liver with years of stock, or its symptoms may get confused with the symptoms of other conditions
The appropriate site, needle angle, dose, schedule, and preparation method can differ by medication, body composition, syringe, and prescribing instructions
Acute injuries may respond within 2-4 weeks, while chronic conditions often require 8-12 weeks or longer