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The asymmetric ratio gives proportional coverage of each pathway rather than equal mass dosing across peptides with very different working ranges

PMID: 34597008 8 Elucidation of an anaerobic pathway for metabolism of l-carnitine-derived -butyrobetaine to trimethylamine in human gut bacteria

Patients who are also on GHK-Cu often describe the combination as producing more energy alongside a noticeably fresher appearance in their facial skin, though that skin observation is anecdotal rather than a tracked clinical metric

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