Name: AHK-CU Raws 10g
Brand: Uther Peptide
SKU: UP-AHK-CU-RAWS-10G
Price: 300.00 USD
Availability: InStock

AHK-Cu at a glance

AHK-Cu combines the tripeptide Ala-His-Lys with a copper(II) ion, giving the complex the molecular formula C₁₅H₂₄ClCuN₆O₄ and a molecular weight of 451.39 g/mol, a figure that includes a chloride counter-ion. Its cosmetic ingredient name is copper tripeptide-3. Structurally it resembles GHK-Cu, the copper peptide found in human plasma, but with alanine in place of glycine at the first position. Unlike most catalogue items, it is sold as bulk powder rather than in vials.

Price and availability

Sold by Uther Peptide and sent from China, this listing is a listing. It is listed at $300.00. Your payment waits in escrow until you confirm the parcel arrived, and only then is it released to the brand.

This listing: Uther Peptide AHK-Cu

Brand: Uther Peptide
Also sold by: TFC Peptides 100mg $65.00 · Sulan Bio 50mg $60.00

Lab testing

There is no public lab report for this listing yet. We can ask the brand for the batch COA before you order. Many buyers also split an independent HPLC test with others who bought the same batch.

Request the batch COA · How group testing works

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

What it is studied for

The histidine side chain and nearby backbone nitrogens hold the copper ion in a stable complex. Copper itself is a cofactor for enzymes such as lysyl oxidase, which cross-links collagen and elastin, and superoxide dismutase, an antioxidant enzyme. Research on AHK-Cu reports increased collagen production and proliferation in cultured dermal fibroblasts, and hair-follicle studies describe effects on dermal papilla cell growth and follicle elongation in organ culture. Whether the peptide acts mainly by delivering copper or through signaling of its own is an open question.

Research and regulatory status

AHK-Cu appears mainly in cosmetic science. Laboratory studies use fibroblast cultures, skin-equivalent models and isolated hair follicles, and the ingredient is found in some topical cosmetic formulations. Controlled clinical evidence is sparse, and published human data, where they exist, come mostly from small cosmetic studies. It is not an approved drug, and its research literature is far thinner than that for GHK-Cu.

Checking the lab data

For a bulk copper complex, a report should confirm peptide identity by mass spectrometry and quantify copper content, for example by atomic absorption or ICP analysis, to show the complex is correctly formed. HPLC purity of the peptide portion and moisture content are useful because bulk powders absorb water. Expect a blue to blue-violet powder; an off-color tint is worth questioning with the vendor.

This listing has no third-party report on file yet. The lab reports directory and the marketplace show which brands do publish testing.

Listing details

Compound: AHK-Cu
Synonyms: Copper Tripeptide-3, Alanyl-Histidyl-Lysine-Copper
Class: Copper-binding tripeptide complex
Format: Raw powder (bulk, not in vials)
Molecular formula: C₁₅H₂₄ClCuN₆O₄
Molecular weight: 451.39 g/mol
Sold by: Uther Peptide
Ships from: China
Lab report: Not yet published

Storage and preparation

Keep it sealed, at the temperature printed on the label and out of direct light; anything with a damaged seal or cloudy contents should be discarded.

Buyer questions

Why is AHK-Cu blue?

The color comes from the copper(II) ion. When copper is coordinated by nitrogen atoms in the peptide, the complex absorbs light in the longer-wavelength part of the visible spectrum and appears blue to violet. A noticeable color shift can signal that copper has been lost or that the complex has changed.

What is copper tripeptide-3?

It is the INCI name used for AHK-Cu on cosmetic ingredient labels. INCI names are a standardized naming system for cosmetic ingredients, so the term helps when searching formulation literature or supplier documentation, where the code AHK-Cu may not appear at all.

When does Uther Peptide get paid?

Only after you confirm delivery. Until then the payment is held in escrow, and you can open a claim if anything is wrong with the order.

Supplied for laboratory research only. Not for human or veterinary use, and not a substitute for any prescription medicine. Nothing on this page is medical advice.