Vitamin B12, also known as cobalamin, is a vital nutrient with significant importance for various bodily functions
For routine antioxidant or longevity support, bypassing digestion does not automatically justify bypassing caution
It may be useful for glow support, tanning, acne marks, and uneven-looking tone
Possible temporary reactions include mild soreness at the injection site, nausea, headache, or dizziness for a day or two, and occasional minor bruising
There are many unknowns, including dose-response in humans, interactions with other fertility treatments, and differences at various stages of conception including gametogenesis, implantation, and gestation