Here is what the two phase 2 trials were designed to test, what they reported, and the conditions those figures were produced under
Effect of human placental extract on menopausal symptoms, fatigue, and risk factors for cardiovascular disease in middle-aged Korean women
References: Stonehouse AH, Darsow T, Maggs DG
A GHK-Cu serum should list the peptide concentration (look for 1% or higher) and the rest of the ingredient list has to be short
Conversely, cooked turnip demonstrated a reduction in uptake in one test when 500 g was eaten, but no effect was observed in two other tests with 514 and 686 g
KI increased lipid peroxidation only when used in its highest concentrations of 50 mM, but used in the middle range of concentrations (5.0