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And unlike other molecules in longevity science, its been tested across an unusually broad range of models: from fruit flies to non-human primates, and from human fibroblasts to frog embryos

PMID 22254022

The 2024 fusion-peptide work exists precisely because researchers recognized that native DSIPs delivery to the brain is the bottleneck, and engineered around it by fusing DSIP to a blood-brain-barrier-crossing TAT transduction domain (sequence GGGGYGRKKRRQRRR) via flexible GGGGS linkers, expressed and secreted from Pichia pastoris

That is why GGT belongs in a preventive strategy, not just a work-up for obvious liver problems

Consistent with the results observed in in vivo experiments, GHK-Cu significantly inhibited oxidative stress in human alveolar epithelial cell in vitro

Enhanced Skin Benefits : This combination is often used to improve skin brightness and elasticity