little bump came up after b12 injection Red bump/mark at site? : r/Semaglutide Lipoden - Maryland Plastic Surgery

Many people have trouble with nutrient absorptionfrom supplements or fooddue to the presence of intestinal inflammation, poor gut health, or a deficiency of intrinsic factorsglycoprotein produced in the stomach thats essential for B12 absorption

1 2 BMJ

Conclusion Although we observed an effect of the MTHFR 677C/T polymorphism on folate, certain elements and amino acid levels, further research is required to validate our findings and establish a more comprehensive understanding of the link between elements, amino acids and the MTHFR gene polymorphism

A vitamin B12 injection skips the middle step

See our what are peptides explainer for broader context on the wider research-compound landscape

As someone else says, so long as you steer clear of veins