how to b12 injection Give Yourself a B12 Injection Dosage and Frequency:

303760-60-3) includes: Purity (98%, dried basis), HPLC

Additionally, after a few months of taking these shots, my estrogen levels started to come back up a bit

G., Freeman, R

Consult a trusted health care provider to see if injections are right for you

with brain neurostimulator pulse generator/transmitter programming, first 15 minutes face-to-face time with physician or other qualified health care professional and 95984 Electronic analysis of implanted neurostimulator pulse generator/transmitter (eg, contact group[s], interleaving, amplitude, pulse width, frequency [Hz], on/off cycling, burst, magnet mode, dose lockout, patient selectable parameters, responsive neurostimulation, detection algorithms, closed loop parameters, and passive parameters) by physician or other qualified health care professional

Up to 60% of people have a version of this mutation leading to a decreased ability to absorb B12