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Beneficial bacteria increased, while bad bacteria decreased
PMID 8626496
For related coverage of collagen peptides in skin and joints, see Collagen Peptides for Joint Health and Elastin Peptides
Formulation Considerations GHK-Cu is generally best suited for gentle, water-based formulations and is typically avoided in highly acidic formulations containing: Strong exfoliating acids Low-pH formulations High-strength Vitamin C formulations Low-pH environments may destabilize the copper-peptide complex and influence formulation stability
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