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Peptide bond hydrolysis is time- and temperature-dependentthere is no way to reverse the damage or test potency without HPLC analysis, which costs more than replacing the vial
The committee recommended against inclusion in the 503A Bulks Regulation, effectively suspending compounding availability while evaluation continues
Higher-purity peptides (98% by HPLC) exhibit more predictable clearance kinetics because impurities and degradation products are minimized lower-purity preparations contain inactive fragments that confound pharmacokinetic measurements and create inconsistent elimination profiles
Reconstituted GHK-Cu is an intense blue from the copper-peptide complex
Strelow, J
