is b12 injection intramuscular or subcutaneous Vitamin Deltoid Site Vitamin B12 Injections (Cyanocobalamin Injections)
Description
It is not a peptide

Journal of Medicinal Chemistry (2017) Kraus D, et al

There is an alternate approach to the injection, wherein you go for a 1000 mcg dose

You apply the patches, available by prescription, directly to painful skin to deliver temporary relief

The primary preclinical evidence comes from mouse studies showing reduced body weight and adipose mass in diet-induced obese mice (2018), improved grip strength in aged mice (2024), and beneficial microbiome changes when combined with caloric restriction (2022)
