For aged skeletal muscle (satellite cell-adjacent biology), both compounds have relevance but through distinct cellular targets: Epitalon addresses aged satellite cell replicative senescence (TERT in Pax7+ cells), while GHK-Cu addresses myofibre mitochondrial oxidative damage (Nrf2 in MHC+ fibres) a complementary rather than competing biology
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Carnethon MR, De Chavez PJD, Lauderdale DS, Carson AP, Liu K, Knutson KL
Once glutathione is depleted, immune cells lose their ability to fight infections
We plan purification around highly polar products and closely related impurities rather than assuming a standard small-molecule workflow is sufficient
Glutathione inhibits tyrosinase, an enzyme in melanin production, which can gradually lead to more even skin tone and reduced dark spots