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For people using GHK-Cu as part of a broader longevity or body recomposition protocol, this means access to properly tested, pharmaceutical-grade product through legitimate clinical channels

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10.1111/j.1432-1033.1977.tb11367.x

Some users report early benefits, but digestive improvements typically become more noticeable by week 4 or later

Furthermore, H&E staining showed that compared to the aorta of normal aging mice, the aorta of mice treated with FOXO4-DRI was thinner, and the PWV value was lower in the ultrasound detection results, which means that the mice treated with FOXO4-DRI had better vascular elasticity and better vascular function than normal aging mice (Figures 1D,E)