GHK-Cu is the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine (CAS 49557-75-7, C14H24CuN6O4, 403.9 g/mol), supplied as a lyophilized powder in a sealed vial at 50 mg. Lot GHK-2501-B has a published third-party analytical report. Review product identity, documentation status, research standards, and traceability information before ordering.
CAS number
49557-75-7
Molecular formula
C14H24CuN6O4
Molecular weight
403.9 g/mol
Form
Lyophilized powder, sealed vial
Price
$34.99 USD
Fulfillment
Ships from the U.S.; tracking is emailed after shipment
A published lot report is linked below. Confirm that it covers the actual lot offered or received; this reference does not establish the lot of every shipment.
Find the lot number on the vial. Compare it with the published reference lot GHK-2501-B. Contact support before purchase if the available lot is unclear.
Open the published report. The certificate for that lot is COA-2026-8T-M1B, dated Aug 10, 2026. Read the PDF.
Confirm the numbers match. The lot on the label and the lot on the certificate must be identical. If they are not, the document does not describe what you were sent.
Verify it with the laboratory, not with us. The issuing lab hosts its own record for this certificate: verify certificate COA-2026-8T-M1B (verification code hFdf3d-7Gw9bwRnI). A supplier that cannot give you an independent verification route has not really given you a certificate.
What the report for lot GHK-2501-B shows
The reported result for this lot is 99.03% by HPLC-UV, tested Aug 10, 2026. That figure is the share of total detected peak area attributable to the main peak. It is worth being precise about what that does and does not establish: it describes the proportion of what the method detected, not the absolute contents of the vial, and it says nothing about water content, residual solvents, or anything the method cannot see. Identity is established separately — a purity percentage on its own does not confirm what the main peak actually is. On this report identity is a retention-time match against a reference standard (HPLC-RTM); mass spectrometry is not part of it. The published certificate lists which analyses were run on this particular lot; the panel varies by product and by batch, so read the certificate for the lot you are buying rather than assuming a standard set.
Identity and packaging
GHK-Cu 50mg is supplied as a lyophilized powder in a sealed vial, CAS 49557-75-7, molecular formula C14H24CuN6O4, molecular weight 403.9 g/mol. Orders ship from Anchorage, Alaska. Tracking information is provided when available; a label alone does not establish carrier acceptance.
Common questions about batch documentation
Is a certificate of analysis the same as “third-party tested”?
No. “Third-party tested” is a claim; a certificate of analysis is a document. The difference that matters is whether the certificate names a specific lot, carries a date and a certificate number, and can be checked with the issuing laboratory. A report that does not name the lot cannot be matched to the vial in your hand.
Can I read the report before I order?
Available reports can be read in the open batch COA library before purchase. Verify coverage for the specific product and lot; a report for another lot does not establish testing of your shipment.
What if the lot number on my vial does not match any published report?
Then the documentation does not cover what you received, and you should ask the supplier why before anything else. Email us and we will resolve it.
Does a high purity number mean the material is what the label says?
Not on its own. Purity by HPLC describes the proportion of detected peak area; identity is a separate determination, either a retention-time match against a reference standard (HPLC-RTM, the method on the reports published here) or mass spectrometry. Read the identity line next to the purity result, which is why the full certificate matters more than a single headline percentage.
Ordering questions
Is there a lab report for GHK-Cu 50mg?
Yes. Lot GHK-2501-B has a published third-party report from ILS Laboratories (certificate COA-2026-8T-M1B, tested Aug 10, 2026, 99.03% by HPLC), with a link to verify it on the laboratory's own portal. Match the lot printed on the vial to the report.
Where does GHK-Cu 50mg ship from, and how fast?
From Anchorage, Alaska, by USPS with tracking. Orders paid by 2 PM Alaska time, 7 days a week, ship the next business day, or we refund your shipping. U.S. shipping is free on orders of $99 or more after discounts; see the shipping policy.
How can I pay?
Card or bank payment through a secure invoice (Apple Pay and Google Pay are offered at the card step), or Zelle, which saves 5%. An account is optional; guest checkout is available.
What if an order arrives damaged, wrong or lost?
We send a free reship or give a full refund. Email support@arcticlabsupply.com with the order number within 48 hours of delivery. Unopened, sealed items are covered by our 30-day money-back guarantee (30 days from delivery); see the return policy.
Research use only
For laboratory, analytical, educational, and in-vitro research only. Not for administration to or ingestion by any person or animal, and not for veterinary, therapeutic, or diagnostic use. Products ship as freeze-dried powder unless stated otherwise. See the research standards, traceability, shipping, and returns pages.