2000 mg glutathione per day Glutathione: Benefits and Supplements Glutathione 2000mg 120 softgels &

The original approved version was discontinued in 2008 for commercial reasons, not safety concerns

Until those gaps are filled, GHK-Cu remains a well-characterized molecule with genuinely interesting biology, meaningful evidence for topical use in a narrow set of indications, and a community practice pattern systemic injection for anti-aging and recovery that substantially outruns what the clinical literature supports

10.1161/CIRCULATIONAHA.115.018347 Summary Keywords blood pressure, cancer, cardio-oncology, hypertension, vascular endothelial growth factor Citation Palaskas NL, Kim JH, Moreno SFL, Casso-Chapa B, Beinart NI, Nnanna N, Mendoza KCO, Deswal A, Yusuf SW, Koutroumpakis E, Abe J and Ewer MS (2026) Onco-hypertension: hypertension induced by VEGF pathway inhibition

By selectively inhibiting NNMT , 5-Amino-1MQ can reduce the methylation of nicotinamide, leading to increased intracellular NAD availability and enhanced metabolic activity