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During this window, lyophilized BPC-157 is effectively stable

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Its a chain of 15 amino acids, and its stable enough to survive in your stomach, which is part of why its so effective

People who are B12 deficient either dont get enough of the nutrient in their diet, or they have a difficult time absorbing the nutrient

DOI: 10.1073/pnas.0406491101 Brines M et al