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The protocol page gives the basic cycle answer, while this page covers timeline planning in more detail
Storage Store in a cool, dry place away from direct light
If you need daily or weekly injections, it will add up quickly
According to the 2025 meta-analysis by Alfalasi and colleagues, sublingual B12 showed an approximate 199% mean increase in serum B12 compared to approximately 307% for intramuscular injections
Further to this research has shown that it remains in the body for a longer period of time and at higher levels than cyanocobalamin, which means that your body is supplied with vitamin B12 for longer if you use methylcobalamin than if you use cyanocobalamin
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