Jan 15, 2026 The difference between GHK-CU working and GHK-CU transforming your skin comes down to one thing
126 YuanB.ZhaoX.ShenJ.ChenS.HuangH.ZhouX.et al (2022)
Immune effects are restorative, not overstimulating: It rebalances T-cell ratios, upregulates IL-2 in aged tissues, and improves neuroimmune integration, suggesting a targeted recalibration of immune tone rather than indiscriminate boosting. It restores circadian and hormonal rhythms: By stimulating melatonin synthesis, protecting pineal structure, and re-entraining clock genes, Epitalon may counter the widespread circadian drift of aging, with implications far beyond sleep, touching immunity, metabolism, and neuroprotection
A study in immunology suggests that GSH enhances your immune response to a pathogen without going into overdrive mode which would be otherwise detrimental if you suffer from autoimmune diseases
Sato Y, Falcone-Juengert J, Tominaga T, Su H, Liu J