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Peptide engineering resulting in substitutions, alpha-methylation, and bis-lipidation is used to protect the vulnerable amino acid sequence of GLP-1A against degradation by dipeptidyl peptidase-4 and GI enzymes [18,19,20]
GHK-Cu is a naturally occurring copper peptide that modulates expression of over 4,000 human genes, including those involved in collagen synthesis, metalloproteinase regulation, and antioxidant defense
But recent experience with GLP-1 injectables shows that success brings scrutiny, and scrutiny exposes safety blind spots
And nobody really catching it for what it is
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