ghk-cu effect on dht Collagen Tripeptides GHK-Cu for Hair Growth: Before
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As a result of digestive problems, such as nausea, people with vitamin B12 deficiency may lose their appetite

10.1038/nature07487 100 HollisF.KabbajM
The lack of FDA approval for these specific uses means that they are not subject to the same rigorous testing and oversight as traditional pharmaceuticals
