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GH secretagogues to preserve muscle mass during caloric deficit
Layering too quickly can dilute the peptide concentration or prevent full penetration before the occlusive layer is applied
GHK-Cu stands apart from signal peptides (like argireline/acetyl hexapeptide-3) that work by modulating neurotransmitter release at the neuromuscular junction
If youre curious about trying a GHK-Cu serum or other copper peptide skin care products: Look for formulations containing copper peptides (around 0.11% is typical in cosmetic products as higher percentages are less commonly standardised)
Jun 2019;10(3):853-863
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