does ghk-cu inhibit 5-alpha reductase dht Is AHK-Cu a Blocker? Copper Pe Steroidal 5α-Reductase: A Therapeutic Target

These findings came from one research programme and require consideration of mouse strain, housing conditions, dose pattern and statistical methods

References Wu G, et al

But I find in my anecdote, as you will, is it has been extremely safe

Low GSH in aging is associated with lower intake of GSH precursors, mainly cysteine, and lower GSH synthesis evidencing diminished function of nuclear factor erythroid 2related factor 2 (Nrf2)-dependent inductive mechanisms that enhance glutamate cysteine ligase expression, rate limiting factor for the synthesis of GSH (McCarty and DiNicolantonio, 2015)

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