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People with a family history of pernicious anaemia

Following dosing, the ARA 290 group improved significantly compared with the placebo group (Figure 4

[DOI] [PMC free article] [PubMed] [Google Scholar] Szab S

GHK-Cu degrades faster than most cosmetic peptides because the chelated copper ion actively catalyzes its own breakdown through redox cycling and reactive oxygen species generation the same transition metal that provides biological activity also drives oxidation

While oral substitutes have shown some effectiveness according to studies, their ability to match the efficacy of intramuscular vitamin B12 remains uncertain