site burning after im injection of b12 Desensitization for Vitamin Hypersensitivity and How to Do It Instruction Guide for Intramuscular (IM)
Description
Animals treated with 5-amino-1MQ showed no signs of toxicity, behavioral changes, or adverse effects at therapeutically effective doses
With the benefits of Methylcobalamin injections for men, this could be your new reality

Biotin deficiency reduces expression of SLC19A3, a potential biotin transporter, in leukocytes from human blood
:max_bytes(150000):strip_icc()/VWH-GettyImages-1665050998-d856556e1272422186a3d2d7c075d9cb.jpg)
A small oral or sublingual dose is usually better tolerated than a large injection

The people who found closer to 50% in their urine probably had a slight vitamin B12 deficiency, and some of the vitamin was stored for later use
