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The comparison reveals important differences that might make GHK-Cu the better choice for some users

Comparing DSIP with Epitalon and Orexin clarifies its role as a tool for investigating integrated neuroendocrine signaling, sleep architecture, and pathway-level interactions in experimental systems

Ettinger 1997

Hair cell integrity was determined at termination via cytocochleograms

The copper component drives proper collagen architecture through lysyl oxidase and lysyl hydroxylase the enzymes that handle cross-linking and structural stability

doi: 10.1016/j.freeradbiomed.2022.05.024 97 GuoJZhouYLiuDWangMWuYTangDet al