methyl b12 injection Compounded Cyanocobalamin (Vitamin B12) Vitamin B12 injections for MTHFR:

When vitamin B12 is taken in bypassing the gastrointestinal tract, immunologically induced skin reactions such as eczema, acne or urticaria have been observed on the one hand

For intramuscular injections, press on and pull your skin so that it is taut

You may benefit from a B12 injection if you are experiencing: Persistent tiredness or fatigue Low mood or irritability Difficulty concentrating Muscle weakness Pins and needles Pale skin Reduced appetite If you are unsure whether you need B12 supplements or injections, our pharmacist can provide guidance based on your symptoms and health history

However, similarly to vitamin K, certain water-soluble vitamins have no observable toxicity and hence no set UL