Overall, the evidence supports the use of B12, on its own or in addition to other supplements, for the reduction of homocysteine levels
Any literature I've seen only mentions the liver
In general, most people can expect the effects of a B12 injection to last for several weeks to months
5-Amino-1MQ 50mg (Nicotinamide N-Methyltransferase Inhibitor) R 2,000.00 5-Amino-1MQ 5-Amino-1MQ is a small-molecule nicotinamide N-methyltransferase (NNMT) inhibitor widely researched in laboratory and experimental settings involving cellular metabolism, NAD-related pathways, and metabolic-regulation research
According to the MHRA, recognised reactions to injectable hydroxocobalamin include injection site reactions, rash, pruritus, and rarely, acneiform eruptions