Overdoing it can occasionally lead to side effects like nerve irritation (with too much B6), skin flushing (from high-dose B3), or digestive upset
The most common and safest sites for injecting Vitamin B12 include: Intramuscular Injection Sites: The upper outer quadrant of the buttock (gluteus), the mid-thigh (vastus lateralis), or the upper arm (deltoid muscle)
During digestion, stomach acid causes it to separate from the protein, and a substance called intrinsic factor enables the bloodstream to absorb it
Clinical tip: dose increases at Day 16
Austin Research Products LLC (d/b/a PeptidePlugs) is a research material supplier - we are not a compounding pharmacy or compounding facility as defined under Section 503A of the Federal Food, Drug, and Cosmetic Act, nor an outsourcing facility as defined under Section 503B