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But here is the limitation that makes the AOD 9604 combination appealing

Compound: BPC-157 + TB-500 co-lyophilised blend

There are lots of over-the-counter forms of B12 to choose from, including pills, lozenges, and sublingual tablets

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People with pernicious anemia, may benefit from sublingual B12 as they lack intrinsic factor and have a lot of trouble absorbing B12 through their digestive system (Ankar, 2020)