After sample extraction, three internal standards (IS, 13C5NAD, 13C 2,6,7 NAM, and 6,7-dimethyl-2,3-di(2-pyridyl)-quinoxaline [DMDPQ]) were added to all samples (blanks, standards, quality controls [QC], and tissue extracts)
USA Manufactured Greater than 97% purity Additive, LPS-free TFA-free
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GHK-CU is a powerful copper peptide known for its remarkable skin recovery properties
In clinical and aesthetic settings, this preservative-based formula translates to operational efficiency: fewer vials opened, less product waste, and reduced cost per dose for high-volume users