GHK Cu Injection Pen Australia Subcutaneous Copper Peptide Inject+ Peptide Injection Site Reactions: What's Normal, What's Not, and What Revolution Health & Wellness Glow from within with GHK Cu Copper Peptide , This powerhouse peptide supports collagen production, skin repair, and hair follicle health, helping improve skin firmness, radiance, and support Just started GHK Cu? Here's what to expect This isn't an overnight peptide, it builds Weeks 12: You may start noticing small shiftsskin feels a bit smoother, nails a little stronger Weeks 34: Anybody know the correct way of using ahk cu? Do I mix with bac water and inject into abdomen?