The biological basis for these actions is GHK (Tripeptide-1), a peptide generated during tissue damage with a very high affinity for copper (Cu 2+ )
"This product is being marketed and sold illegally as a preventative against skin cancer and as a tanning agent," said Steven Galson, MD, MPH, director of the FDA's Center for Drug Evaluation and Research
You've tried switching brands, going organic, cutting back, and nothing quite explains it
Combined tamoxifen and L-carnitine therapies for the treatment of idiopathic male infertility attending intracytoplasmic sperm injection: a randomized controlled trial
Effectiveness is not the only factor, though
Stay hydrated, as dehydration can worsen fatigue