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Animal studies have not shown effects on sperm production, sperm quality, or male reproductive organs at therapeutic doses
Reduced Hair Breakage: The connective tissue growth promoted by GHK-Cu may benefit hair by reducing breakage and promoting overall growth
It also improves insulin sensitivity
The Sourcing Risk is Real: The purity, dosing accuracy, and sterility of research peptides sourced outside pharmaceutical-grade channels are genuine safety concerns that no amount of mechanistic elegance can paper over
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