Can GHK Cu Be Taken Orally? Oral GHK Cu Bioavailability, Tablets & Copper Peptide Safety Neurogan Health Parents & teen athletes: not everything trending on social media is safe., Copper peptides like GHK Cu are being promoted for skin health, but these products are unregulated and not FDA approved, Exciting news for the peptide world making these peptides easier to prescribe and likely dropping the prices for them. As always know your prescriber and avoid the gray market due to unregulated Injectable Peptides for Anti Aging? A Dermatologist Explains GHK Cu