GHK-Cu has a 1,000,000-fold window between observed effect and toxicity, which is one reason injectable forms have been used compounded under prescription for decades without major safety signals
The clinic said it had clearly explained that the peptides discussed are not licensed medicines, and that the current evidence base is largely pre-clinical, with an absence of large-scale randomised controlled trials assessing long-term outcomes
For comparison, the previously described effect of Fer-1 on male tubules is shown in parallel in live-cell imaging
Xanthine-oxidase inhibitors and statins in chronic heart failure: effects on vascular and functional parameters
Nitric oxide synthases and protein oxidation in the quadriceps femoris of patients with chronic obstructive pulmonary disease
Prevention of cholesterol gallstone disease by FXR agonists in a mouse model