Independent groups working with aging human fibroblasts have reported something genuinely tantalizing: in late-passage cells, the ones that have divided many times and started to look worn, GHK exposure can shift gene-expression patterns partway back toward a younger profile
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Familial globular glial tauopathy linked to MAPT mutations: molecular neuropathology and seeding capacity of a prototypical mixed neuronal and glial tauopathy
References Coskun, T., Urva, S., Roell, W.C., Qu, H., Loghin, C., Kirchner, T., et al
(2019) (Kohn et al
Most researchers find that the skin and tissue benefits of GLOW provide good value relative to the incremental cost