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Nrf2 deficiency enhances oxidative stress and promotes susceptibility to tinnitus in mice | Scientific Reports

02 · product specifications GHK-Cu is a copper complex rather than a plain tripeptide, and that changes what release testing has to establish: alongside RP-HPLC purity and mass confirmation of the Gly-His-Lys backbone, the copper-to-peptide stoichiometry has to be right, because a partially loaded batch behaves as a mixture of complex and free peptide with different activity

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Incubate at 37 °C at 250–300 rpm for an additional 3 h (see Note 10), while monitoring the growth at OD 600