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Timing, Duration, and Protocol Design Copper peptide dosing timing is more flexible than for growth hormone secretagogues, because GHK-Cu does not have the strict empty-stomach and circadian-alignment requirements of GH-axis peptides
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Choosing an oral supplement depends on how well the body absorbs it
This is most relevant for weight-based peptides like kisspeptin (dosed in mcg/kg) and less relevant for receptor-saturating peptides like BPC-157, where tissue concentration at the injury site matters more than total body distribution
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