'Blue skin' from GHK-Cu — is this a real risk or Reddit lore
36 posts
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 silver / high-dose IV copper?
I assume topical doses of GHK-Cu are orders of magnitude too low to cause systemic copper accumulation but I want to be sure before I commit to daily use.
6 Replies
68 posts
Myth. Topical GHK-Cu at cosmetic concentrations delivers micrograms of copper at most. You'd need sustained high-dose IV copper or serious oral over-supplementation to get systemic copper toxicity. Not a real risk here.
- Epithalon · 10 mg · 10d on / 80d off · sub-Q
- MOTS-c · 5 mg · 2x/wk · sub-Q
- 5-Amino-1MQ · 150 mg · daily · oral
212 posts
You can temporarily stain skin blue-green if you apply a very concentrated GHK-Cu solution and it oxidizes on the skin. That washes off. Not the same thing as metal deposition.
- CJC-1295 no DAC · 100 mcg · pre-bed · sub-Q
- Ipamorelin · 200 mcg · pre-bed · sub-Q
- BPC-157 · 500 mcg · 2x/day · sub-Q
36 posts
32 posts
yeah the blue skin thing is totally blown out of proportion. ive been running topical ghk for like 8 months now and the only thing that happened was my skin looked kinda teal-ish for like 20 mins after application before i showered it off. copper accumulation from topical stuff is basically a non-issue unless youre chugging it orally or getting IV'd which nobody does for cosmetics anyway
43 posts
The topical staining thing is real but yeah, systemic accumulation from a serum is basically fantasy. That said, I'd still be curious if anyone's actually measured serum copper levels before and after consistent topical use, because "micrograms at most" is kinda handwavy. Not saying the risk is real, just that most people claiming it's safe are also just guessing based on logic rather than actual data.