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Sep 21 2007;13(35):4771-4775
Keratin is a protein that acts as the main structural component in your hair, skin and nails
It is a 47-residue synthetic peptide constructed as a D-retro-inverso (DRI) analog: the primary sequence is reversed and each amino acid is substituted with its D-enantiomer, an arrangement that approximates the topological side-chain presentation of the parent L-peptide while conferring markedly greater resistance to proteolytic degradation in typical aqueous and biological buffer systems used at the bench
Because retatrutide has no FDA-approved prescribing label for the compounded vial format, these figures are derived from general compounding standards rather than a compound-specific stability study
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