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Clinical trials examining GHK-Cu effects on facial hyperpigmentation have reported variable results, with some studies documenting 15-30% reductions in melanin index measurements over 8-12 week treatment periods, while others report minimal pigment-lightening effects

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I have referenced the relevant study above, but the report on the increase in cardiovascular disease is not in the wider public domain, and I am therefore unable to share it with you

5-Amino-1MQ acts as a competitive inhibitor with respect to the nicotinamide substrate (submicromolar IC50), increasing the intracellular nicotinamide available for NAD+ salvage via NAMPT - which is then studied for downstream effects on NAD+-dependent sirtuins and mitochondrial function