GHK‑Cu topical vs injectable: my 6 week skin firming experiment

Posted by hank_m in Longevity & Anti-Aging - 1 points, 0 comments.

I've started using GHK‑Cu for about six weeks now and it's been a bit of a mixed bag. I picked up the 1‑mg topical serum at the local pharmacy and tried it 2× daily, then switched to a 200‑mcg injectable once a week after reading that the 3×/week doses are standard for body‑wide effects. I didn't see any irritation with the serum, but the injection gave a tiny bruise every time – not a big deal, but a reminder that i'm dealing with a real peptide, not just a fancy cream.

After the first month i noticed a subtle tightening around my jaw and a more even tone under my eyes, probably the collagen up‑regulation that the literature talks about. The skin still looks a bit dull on days I skip a dose, though. I kept the serum on my neck and chest too, which felt good.

Overall, the injectable seems to push collagen where the serum can't quite reach, but the serum is easier to use and less messy. I’m still watching for any itching or redness, but so far i’ve had none. Tbh, it’s a small win on the skin front and maybe a bit of a mood booster knowing I'm doing something that has a plausible mechanism.

Community discussion - research and educational context only. Not medical advice.