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Genetic variants in intrinsic factor, gastric acid production, and B vitamin metabolism help determine whether you'll benefit from standard oral B12, methylcobalamin, or intramuscular administration
For GHK-Cu, avoid buffers containing strong chelators (e.g., EDTA) that can disrupt copper complexation.
Hoter, A., El-Sabban, M
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The oral route is ideal for digestive health optimization, leaky gut support, and those preferring non-injectable therapy, while injectable forms may be preferred for targeted musculoskeletal injuries requiring higher localized concentrations
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