GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health FOX04 DRI 10 mg Particle Peptides And we're back with our GHK Cu peptide injection pen. Here's how to use it, and where. More coming soon ;) #ghkcu #ghkcucopperpeptide #peptides Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule