Self-administered B12 shots are generally recommended for individuals: whose bloodwork has documented low B12 levels Patients with pernicious anemia or a lack of intrinsic factor Individuals with Crohn's disease, celiac disease, or post-bariatric surgery malabsorption Vegans and strict vegetarians are unable to correct the deficiency through diet Older adults whose stomach acid production has declined with age Anyone on long-term metformin or proton pump inhibitors Across most of the U.S., injectable B12 is not sold over the counter a clinician has to write the script before a pharmacy can dispense it
For each nootropic on this list, there is one reference
Covarrubias AJ, Perrone R, Grozio A, Verdin E
Midday & Evening Use: On workout-heavy days, he adds another 20 grams in the afternoon (usually during or after training) and 20 grams before dinner, bringing his total up to about 60 grams
GHK-Cu promotes angiogenesisthe formation of new blood vessels in the wound areathrough the stimulation of VEGF
(1987) Clinical usefulness of intrathecal injection of methylcobalamin in patients with diabetic neuropathy