can b12 injection cause spots Acne and Vitamin Do Vitamin B12 Supplements Cause

The effects of B12 shots will last a few weeks or even months, depending on your age and diet

R., Mitsche, M

However, some patients receiving high-dose B12 supplementation or injections may experience adverse reactions, though these relate to the treatment rather than the elevated levels: Possible reactions to B12 supplementation (particularly injections): Skin reactions, including acneiform eruptions or rashes Pruritus (itching) Injection site reactions (with parenteral administration) Rare hypersensitivity reactions Non-specific symptoms such as headaches, dizziness, or gastrointestinal disturbances have been reported by some patients taking B12 supplements, but causality is not well established in clinical evidence

The NHS has information about good sources of B12

Simply injecting B12 won't lead to dramatic weight reduction

Therefore, these consensus points may be generalized to many countries