Repeated shots in the same spot can scar or harden fatty tissue, which may or may not interfere with absorption
Further, it activates muscle stem cells, promoting tissue regeneration, and reverses insulin resistance in relevant animal models, all with good systemic tolerability 1,2
If you are B12 deficient, you may feel a boost in energy almost immediately after the injection
1,2 Although not clinically validated or available for widespread use, measurement of holotranscobalamin, the metabolically active form of vitamin B 12 , is an emerging method of detecting deficiency
(Nature, 2014) used an antisense oligonucleotide to knock down NNMT in mice and reported reduced fat-mass gain, better glucose tolerance, and lower liver triglycerides the founding paper for the whole NNMT-inhibitor field
Support red blood cell production