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GHK-Cu (Copper Peptide or Glycyl-L-Histidyl-L-Lysine-Copper) is a peptide hormone naturally made in our bodies
It is based on the tyrosinase-catalyzed oxidation of Tyr to dopamine, and its subsequent reaction with tetrachloroaurate to form gold particles whose purple color can be detected even with bare eyes
Underdosing may leave symptoms unresolved, while overdosing may cause unwanted side effects such as erythrocytosis or mood fluctuations
Rezaei, M., et al
Through this triple-receptor agonism, retatrutide not only lowers blood glucose levels and enhances insulin sensitivity but also suppresses appetite, increases energy expenditure, and reduces body weight
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