Is a Certificate of Analysis available for GHK-Cu?

Yes. Batches are independently verified by reverse-phase HPLC. The Certificate of Analysis is batch-matched to the vial label and published in the public COA library at alphex.co.uk/pages/coa, where you can read it before you order.

How should it be stored on arrival?

Lyophilised peptides ship vacuum-sealed. Refrigerate at 2 to 8 C for short-term storage and freeze at minus 20 C for long-term storage. Keep light-sensitive compounds in the original vial.

What is it supplied for?

Supplied exclusively for laboratory and in-vitro research purposes by qualified researchers. Not authorised for human or veterinary use.

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Copper Peptide

GHK-Cu

Q: How is it shipped and how quickly?

Order by 2pm Monday to Friday for same-day dispatch from UK domestic stock. Sent with Royal Mail Tracked 24, which aims for the next working day, in vacuum-sealed, discreet packaging. 3.99 GBP under 60 GBP, free over 60 GBP after any discount.

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Independently verified purity

>99.80%

Chromatographic purity, >99.80% ± 0.18%

Measured by HPLC-UV/VIS at Vanguard Laboratory on the exact batch we ship you, not a representative sample from a previous lot.

Batch on the vial#0010-GHK

Certificate lot0010

Vial size certified50 mg

LaboratoryVanguard Laboratory, Olympia WA

Laboratory IDV251215-25 001

Date reported27 December 2025

Chromatographic purity by HPLC, full chromatogram on the certificate

Batch number on the certificate matches the number on your vial

Published in full before you buy, 1 certificate on record for this compound

Read this batch's certificate

Vanguard Laboratory is accredited to ISO/IEC 17025:2017 by A2LA under certificate scope 6377.01. The chromatographic purity result shown is not represented as an accredited-scope test. The laboratory did not observe sample selection and cannot confirm the sample is representative of the whole lot.

Certificate of Analysis

Every batch is independently verified by reverse-phase HPLC to 99+% purity by Vanguard Laboratory. The certificate is batch-matched to the vial label and published in our COA library, so you can read it before you order rather than asking for it.

Vanguard is accredited to ISO/IEC 17025:2017 by A2LA under certificate scope 6377.01. The chromatographic purity result is not represented as an accredited-scope test.

Shipping & delivery

Order by 2pm Mon-Fri for same-day dispatch. Sent with Royal Mail Tracked 24, which aims for the next working day. Vacuum-sealed, discreet packaging. £3.99 under £60, free over £60 after any discount.

Free delivery protection is included on every order. If your parcel is lost in transit or a vial arrives damaged, we replace it at no cost. See shipping and delivery.

Storage & handling

Lyophilised peptides ship vacuum-sealed. Refrigerate (2-8°C) on arrival for short-term storage, freeze (-20°C) for long-term.

Research use only

Supplied exclusively for laboratory and research purposes. Not authorised for human or veterinary use.

GHK-Cu - Research Peptide

For research purposes only. This product is supplied exclusively for scientific laboratory research and analytical applications. It is not intended for human or animal use, and must not be misused in any way that contravenes regulations or applicable laws.

Product Overview GHK-Cu (Prezatide Copper Acetate) is a synthetic copper-binding tripeptide complex. It is utilized in biochemical research to investigate extracellular matrix remodeling, collagen synthesis up-regulation, and anti-inflammatory pathways. This reagent is supplied as a high-purity lyophilized cake, free from heavy metal contaminants often found in non-research grade cosmetic bulk powders.

Technical Specifications:

Chemical Name: Prezatide Copper Acetate (Bis(glycyl-L-histidyl-L-lysine) copper complex)
Molecular Formula: C32H54CuN12O12 (Acetate Complex)
Molecular Weight: ~862.4 g/mol
CAS Number: 130120-57-9
Sequence: (Gly-His-Lys)2·Cu·xAcOH
Purity: ≥99.0% (HPLC Verified)
Appearance: Distinctive blue lyophilized powder.

Storage & Handling: This peptide complex is hygroscopic. Store in a cool, dry place at -20°C. Protect from light. Upon reconstitution with bacteriostatic water, the solution will exhibit a characteristic deep blue hue due to the copper (II) ion coordination.

GHK-Cu specification

Compound class	Copper-complexed tripeptide
Sequence	Gly-His-Lys : Cu(II) complex (GHK-Cu)
Molecular formula	C14H22CuN6O4
Molecular weight	403.9 g/mol (complex); 340.4 g/mol (free tripeptide)
CAS number	49557-75-7
Also known as	Copper tripeptide-1, glycyl-L-histidyl-L-lysine copper
Form	Lyophilised powder, vacuum-sealed glass vial
Purity and identity	99+% by RP-HPLC (220 nm)
Available sizes	50mg, 100mg
Storage	Sealed vial: -20 C long term, 2-8 C short term. Light sensitive: keep in original vial or wrap to exclude light.
Documentation	Batch-matched Certificate of Analysis with the HPLC chromatogram, the measured purity and the issuing laboratory named. Published in the public COA library, searchable by the batch code printed on the vial label.
Origin and dispatch	UK domestic stock. Same-day dispatch before 2pm Mon-Fri, sent with Royal Mail Tracked 24.
Intended use	Laboratory and in-vitro research only. Not authorised for human or veterinary use.

Values are typical for the compound. The Certificate of Analysis for the shipped batch is the authoritative record for purity, identity and net content.