GHK-Cu

Copper peptide.

New Thread
Q

Oral GHK-Cu capsules — waste of money?

Saw a supplement brand selling oral GHK-Cu capsules with big 'anti-aging' claims. My understanding is tripeptides get destroyed in the stomach and this is basically charging $60 for expensive copper.

by questions_mode·12/27/2025
L

GHK-Cu into the microneedling channels — is this a real synergy

Dermatologists sometimes apply GHK-Cu serum after microneedling to push it into the channels. In theory this delivers the peptide to the dermis way more effectively than passive topical. Anyone doing

by late_bloomer_m·12/17/2025
B

Cosmetic-grade vs research-grade GHK-Cu — does it matter for topical use?

Cosmetic suppliers sell GHK-Cu premixed in a vehicle at 0.05–2%. Research suppliers sell it lyophilized as a raw powder for way cheaper per mg. I want the cheap route but I'm not sure if: 1. The rese

by bac_water_noob·2/26/2026
C

GHK-Cu + tretinoin — can I layer these or does the retinoid kill the copper?

Running tret 0.05% nightly for years. Want to add GHK-Cu to the routine. Everything I read says 'don't combine with acidic actives' but tret isn't really acidic — it's a retinoid in a pH-neutralish ve

by curious_catL·3/17/2026
H

Topical vs injected GHK-Cu — I keep seeing people argue this and the evidence isn't symmetrical

Every few weeks someone posts 'why inject GHK-Cu when you can just slather it on' or the mirror image 'topical is a waste, only sub-q works.' Both are oversimplifying and I want to actually lay it out

by hexaclinic·2/3/2026
G

Hair loss stack — GHK-Cu + AHK-Cu + zinc thymulin. Anyone actually doing all three?

I've been on topical minoxidil + finasteride for two years and it's holding the line but not regrowing much. Looking at adding the copper peptide trio you see on r/tressless: - GHK-Cu — fibroblast /

by goal_driven·2/20/2026
F

'Blue skin' from GHK-Cu — is this a real risk or Reddit lore

Keep seeing comments like 'be careful or you'll turn blue from the copper.' Is that a real thing from topical GHK-Cu, or are people confusing it with the argyria-style stories from oral colloidal silv

by first_vial·1/11/2026
P

Fine lines around eyes — is GHK-Cu actually doing anything or is this placebo

4 months in on 0.1% GHK-Cu serum under eyes. I *think* the fine lines look softer but I'm honestly not sure if that's the peptide, the moisturizer I also started, or me staring at myself in better lig

by petal_push·1/21/2026
P

Post-surgery scar reduction — 3 months of topical GHK-Cu results

Had a shoulder scope in January. Started 0.2% GHK-Cu serum on the portal scars once they closed (week 3 post-op). Applied 2x/day for 12 weeks. Results: the scars are flatter and less red than I expec

by post_surgery_rr·2/10/2026
P

Homemade topical GHK-Cu — someone check my concentration math

Making my own 2% serum and I keep getting tangled up on ppm vs mg/mL vs percent. Want to double check before I waste a vial. Starting material: 50mg lyophilized GHK-Cu vial. I want to make 30mL of 2%

by panel_maxer·3/7/2026