TB-500 distributes systemically regardless of injection location due to its longer half-life and different distribution characteristics
In particular, CJC-1295 has been demonstrated to preserve growth hormones physiologic effects on hyperplasia, hypertrophy, bone density, blood sugar, fat metabolism, protein synthesis, and myocardial (heart cell) function
it shares an alpha subunit with pituitary luteinizing hormone (LH) but has a distinct beta subunit that confers its specific activity
But as you saw, the scientific literature shows that treatment with massive doses of B12, leading to very high blood levels, is 100% safe
Seminars in hearing, vol 40
Always use a new, sterile syringe to decrease contamination