Injectable GHK-Cu stays prescription-only and is not available OTC
Regardless, most research applications utilize the injected version, and this is also the form that is most often used in both research and clinical settings
Our quality assurance program includes High-Performance Liquid Chromatography (HPLC) to confirm peptide identity and purity at 99%, and Mass Spectrometry (MS) to verify molecular weight matches the expected 403.93 Da, confirming correct amino acid sequence and copper complexation
Reference-standard literature describes the use of RP-HPLC to evaluate lot homogeneity, stability, identity, content, and purity for synthetic peptide standards [18]
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