Most people get enough vitamin B12 in their diet, but a deficiency may occur in certain health conditions (such as poor nutrition, stomach/intestinal problems, infection, cancer)
It's also sensitive to light, so keeping it in its original box or a dark container inside the fridge is a smart move
For intramuscular administration as directed by a physician
Studies find contamination rates between 12% and 58% for peptide products from unverified suppliers
[1] [3] Methylcobalamin is a naturally occurring form of vitamin B12 found in animal products such as meat, fish, eggs, and dairy
Tell your healthcare provider if you have stomach problems that are severe or will not go away