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Diarrhea occurs in 18% to 23% of participants

Taking medications for such long periods of time may expose you to severe side effects, including the increased risk of heart attack, stomach ulcer, kidney dysfunction, mood changes, and addiction

The short, honest answer is that the injectable/systemic record is almost entirely preclinical rodent and in-vitro with no published human clinical trials of subcutaneous GHK-Cu, and everything below should be read through that lens

A deficiency in B12 can lead to a reduction in red blood cell production, resulting in a condition known as pernicious anemia

Female NSG mice were obtained from Charles River and enrolled into trial at 68 weeks of age