It was developed from Melanotan II research
Those reactions are more concerning if they worsen, spread, become hot, drain fluid, or come with fever or systemic symptoms
However, it has been shown that high blood levels of vitamin B12 can cause the diagnostic features of cobalamin deficiency , which is due to binding to the different transport proteins
Bioavailability is still low, but it is useful for long-term management as this form is over-the-counter
While Vitamin B12 injections are not a direct weight loss treatment, they can boost your metabolism and energy levels, supporting your overall weight loss efforts when combined with a healthy diet and exercise
B vitamins and the brain: mechanisms, dose and efficacy