Peptide absorption requires the molecule to be in monomeric (single-molecule) form to interact with transport proteins on the cell surface
Age-related changes in gastric function can reduce food-bound B12 absorption whilst synthetic supplement absorption remains adequate
Tkalcevic et al., 2007)
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Request a Certificate of Analysis showing HPLC purity above 98 percent, mass spectrometry confirmation of the correct molecular weight (340.38 Da for the free tripeptide), and absence of heavy metal contamination beyond the copper complex
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