ghk-cu recommended dosage 4 years of medical school and it led me here — ranking peptides on a tier list. No regrets. The ones that actually work, the ones that are overhyped, and the one Doctor Explains GHK-Cu the Glow

Le KPV (Lys-Pro-Val) directly inhibits the NF-B transcription factor in keratinocytes and dermal cells

For patients pursuing systemic regenerative protocols, wound healing support, or broader anti-aging applications where body-wide distribution is the goal, injectable has a legitimate clinical role under physician supervision through an accredited compounding pharmacy

However, as reassuring as all of this is, there are a couple of things to remain mindful of: Copper toxicity Because GHK-Cu contains copper, it does pose a potential risk of copper toxicity,12 the symptoms of which include abdominal pain, vomiting, chest pain, chills, cough, fever, general weakness, anemia, burning sensations, tremors, and a metallic taste in the mouth.13 The risk is small, as the concentrations of copper in the peptide are typically well within safe parameters, but its good to be aware of it

1990;38(3):145-64. [PMID: 2192911]