bleeding after b12 injection What happens if you inject wrong? Vitamin B12 Side Effects: Risks

When paired with a balanced diet and regular exercise, it can help maintain weight and burn fat

B12 injections for weight loss capture the attention of the modern world because they combine valid scientific evidence with increasing popularity despite the abundant diet fads and so-called miracle supplements all the time filling social media feeds

If the cause isn't dietary then it is an absorption problem so you need to find another way of replenishing B12 initially

2018 Apr 6;6(6):1179-1180

Concurrent application with highly acidic or strongly chelating topical agents-such as concentrated ascorbic-acid serums-may reduce the activity of one or both products because copper ions can catalyze oxidation reactions