subcutaneous vitamin b12 injection sites

What is the best form of vitamin B12 to take https://images.pexels.com/photos/32532049/pexels-photo-32532049.jpeg?auto=compress&cs=tinysrgb&h=650&w=940 b12 injections versus oral supplements IV Infusion vs Injections: Best Choice B12 for Weak & Lethargic Pets Patients self-injecting vitamin B12 Shot:4 Shots – omega 3 supplement Size:1000 mcg/ml - 10 ml (Pack of 1)

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