Copper Peptide Serum for Hair Regrowth & Thinning Hair Feline Skinscience GHK Cu for hair growth does it actually work? Short answer: no. GHK Cu can be great for skin but when it comes to hair growth, the evidence just isn't there. And this GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health Does GHK Cu work for hair loss, and does it actually affect DHT? https: bit.ly 4vBGBbI Nelson Vergel Ingredients Hairgenetix GHK Cu, AHK Cu & PDRN Peptides