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The numbers in this table are general guidelines
Yes, older adults might need different doses because their bodies absorb and process things differently as they age
Your body will break down B12 if it has no use for it, because its water-soluble
That is how peptides are best approached: as medicine to be understood, not products to be bought on impulse
The two peptides share the copper-tripeptide structure, so a degree of read-across is biologically reasonable but "GHK-Cu does X, therefore AHK-Cu does X" is an inference, not a finding
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