For general wellness and maintenance, monthly is often enough
While severe B12 deficiency is relatively uncommon in many developed regions, marginal levels are still frequently observed in older adults, as well as in vegans, vegetarians, and individuals with absorption disorders
B12 injections support metabolism and energy, which may complement weight management efforts when combined with appropriate diet and exercise
Verify you are using the correct syringe markings
Store away from direct sunlight at a temperature no higher than 25 degrees celcius
There is no human trial of this exact combination, so the evidence here is built from studies on the individual components, most of it preclinical