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Amidated peptides have been observed to exhibit reduced sensitivity to proteolytic degradation and, in some cases, increased receptor binding affinity relative to their acid-form counterparts (2)

Pathology ranges There is disagreement between pathology ranges and research findings with regard to appropriate B12 levels with most of the focus on the lower level of acceptability

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There are a lot of factors that make it very hard to do a good study on these peptides. For one, such research is costly, and the wide availability of unproven peptides makes them less attractive to pursue from a financial standpoint, he says