#1 of 11 · 200 mg vial
USA Peptide Science Shop26% above the 200 mg median
Certificate with a batch number, no laboratory named
8 sellers, $0.280 to $1.13 per milligram, median $0.795, read 2026-09-26.
Some seller links may pay this site when you buy through them. A payment never changes a seller's tier or rank, and no seller has a say in any page.
No lab-confirmed or tier A seller at 200 mg. Cheapest of all: aureumpeptides.com at $0.280 per mg for 200 mg, tier C. GHK-Cu 200 mg median is $0.795 per mg across 8 sellers.
#1 of 11 · 200 mg vial
USA Peptide Science Shop26% above the 200 mg median
Certificate with a batch number, no laboratory named
#2 of 11 · 200 mg vial
aureumpeptides.com
65% below the 200 mg median
Storefront not yet profiled
#3 of 11 · 200 mg vial
Limitless Biotech ST46% below the 200 mg median
Site says it tests; no certificate could be found
#4 of 11 · 200 mg vial
Zen Aminos18% below the 200 mg median
Site says it tests; no certificate could be found
#5 of 11 · 200 mg vial
limitlessbiotechpeptides.com
9% below the 200 mg median
Storefront not yet profiled
#6 of 11 · 200 mg vial
Limitless Biotech ST8% below the 200 mg median
Site says it tests; no certificate could be found
#7 of 11 · 200 mg vial
peptidesworld.com
at the median the 200 mg median
Storefront not yet profiled
#8 of 11 · 200 mg vial
corepeptidesofficial.com
10% above the 200 mg median
Storefront not yet profiled
#9 of 11 · 200 mg vial
peptideshopa.com
17% above the 200 mg median
Storefront not yet profiled
#10 of 11 · 200 mg vial
Limitless Biotech ST24% above the 200 mg median
Site says it tests; no certificate could be found
#11 of 11 · 200 mg vial
limitlessbiotechpeptides.com
42% above the 200 mg median
Storefront not yet profiled
11 of 11 offers at 200 mg, sorted tier first, then price per mg.
GHK-Cu 200 mg was first read on 2026-09-26. Median $0.795 per milligram across 8 sellers. A week-by-week line appears after the next finished weekly walk. One week is a snapshot, not a history.
The figure is the same ungated market median the range on this page uses: every seller found. Certificate tier still ranks the cards. The purity gate is written and off, so this is not a tested-sellers-only series.
We never charge for knowledge. No vendor has a say in what a page says. Sellers are ranked by the certificate they publish, then by price. Every size of GHK-Cu · Laboratories named