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Disclaimer:The content on this website has not been evaluated or approved by the U.S. Food and Drug Administration (FDA). Products sold by 99 Purity Peptides are offered for research and laboratory purposes only and are not intended to diagnose, treat, cure, or prevent any disease. 99 Purity Peptides is not a compounding pharmacy and does not operate as a chemical compounding facility as defined under Section 503A of the Federal Food, Drug, and Cosmetic Act. Products are not for human or veterinary use, and are not intended for ingestion, injection, or any form of administration. Purity levels may vary by product and lot; certain items may test below 99% purity.

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HomeShopPeptide BundlesAHK-CU Strength Comparator
Peptide Bundles

AHK-CU Strength Comparator

$99.99

The AHK-Cu Research Pair supplies the copper tripeptide at two fill masses — 50 mg and 100 mg, 150 mg in total. Both vials contain the same compound to the same specification; only the quantity per vial differs. Two fill masses allow a target concentration to be reached at two different prepared volumes. For research use only.

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Reconstitution Calculator50mg Vial
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AHK-CU Strength Comparator
Product Profile

Overview

The AHK-Cu Research Pair contains two lyophilized vials of AHK-Cu, also designated Copper Tripeptide-3, at 50 mg and 100 mg. The two vials hold the same compound, produced to the same specification. Fill mass is the only difference between them.

Supplying both masses together serves a practical purpose rather than a comparative one. With a single fill mass, target concentration and prepared volume are locked together — choosing one determines the other. Holding both masses allows a given concentration to be reached at two different volumes, so the amount of solution prepared can be matched to what a given experiment requires without serial dilution.

AHK-Cu is a copper(II) complex of the tripeptide alanyl-histidyl-lysine, a synthetic analog of the more extensively studied GHK-Cu. Its published literature is considerably narrower than GHK-Cu’s, and researchers should treat reported characterisations accordingly.

Both vials are supplied as pale blue lyophilized powder with batch documentation.

For Research Use Only. Not intended for human consumption, therapeutic use, veterinary use, or diagnostic applications.

The AHK-Cu Research Pair contains two vials of AHK-Cu, also designated Copper Tripeptide-3, at 50 mg and 100 mg — 150 mg in total. Both vials hold the same compound to the same specification, differing only in fill mass. Two masses allow a target concentration to be prepared at two different volumes without serial dilution.

Key Takeaways

  • This pair contains one 50 mg vial and one 100 mg vial of AHK-Cu, supplied lyophilized, 150 mg in total.
  • Both vials contain the same compound produced to the same specification; fill mass is the only difference between them.
  • Two fill masses allow a given target concentration to be reached at two different prepared volumes.
  • AHK-Cu is designated Copper Tripeptide-3 and is a synthetic analog of GHK-Cu, which carries a substantially larger published literature.
  • Both vials are supplied strictly for laboratory research and are not intended for human consumption, therapeutic use, veterinary use, or diagnostic applications.

What’s Included in This Research Pair

VialFill massCompoundDesignation
AHK-Cu 50 mg50 mgAHK-Cu, copper(II) complex of alanyl-histidyl-lysineCopper Tripeptide-3
AHK-Cu 100 mg100 mgAHK-Cu, copper(II) complex of alanyl-histidyl-lysineCopper Tripeptide-3
Total150 mg

Both vials are supplied as pale blue lyophilized powder with batch documentation.

Both Vials Contain the Same Compound

The 50 mg and 100 mg vials contain identical material. Same compound, same specification, same production process — only the quantity of powder in the vial differs.

This is worth stating explicitly because vial size is sometimes assumed to indicate grade or preparation differences. It does not. A 100 mg vial of AHK-Cu is not a different product from a 50 mg vial, and neither is formulated for a different research area.

Fill mass is a practical variable. It determines the concentration range a single vial can reach and how much solution one reconstitution produces. It does not affect what the compound is.

This pair is not a scientific comparisonBecause both vials hold the same compound to the same specification, no structure-activity comparison exists between them. The pair is supplied for concentration-range flexibility and quantity. Researchers looking for a genuine comparative pairing should see the Copper Peptide Comparator, which pairs AHK-Cu against GHK-Cu.

Choosing Between the Two Fill Masses

Neither fill mass is preferable in general. The choice depends on the work:

  • The 50 mg vial suits smaller preparations and higher concentrations at low volumes.
  • The 100 mg vial suits larger prepared volumes at the same concentration, or higher concentrations where volume is constrained.
  • Holding both suits work spanning a concentration range, or where the second vial is retained lyophilized as reserve material while the first is in use.

Lyophilized material is more stable than material in solution, so retaining the unused vial in its lyophilized state until required is generally preferable to reconstituting more than an experiment needs.

Research DisclaimerAll products across every category are for research use only and not for human or veterinary use, diagnosis or treatment.
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Education & Research

Further Reading.

GHK-Cu vs AHK-Cu: One Amino Acid, Two Very Different Evidence Bases
Product Guides
Sep 12, 20265 min read

GHK-Cu vs AHK-Cu: One Amino Acid, Two Very Different Evidence Bases

AHK-Cu vs GHK-Cu: one methyl group apart, but not one tier of evidence. A sourced comparison of the chemistry, hair and skin data, and marketing claims.

AHK-Cu Nasal Spray 50mg: What Copper Tripeptide-3 Research Actually Shows
Product Guides
Aug 21, 20265 min read

AHK-Cu Nasal Spray 50mg: What Copper Tripeptide-3 Research Actually Shows

AHK-Cu nasal spray 50mg explained: Copper Tripeptide-3 structure, GHK-Cu differences, COA checks and honest research limits. Research use only.

GHK-Cu Nasal Spray: What Does the Research Actually Show?
Product Guides
Oct 17, 20265 min read

GHK-Cu Nasal Spray: What Does the Research Actually Show?

GHK-Cu nasal spray research reviewed: three mouse studies from one lab, no human data, and what is still unknown about absorption and tolerability.

READ

(faqs)

Frequently Asked

01

What is included in the AHK-Cu Research Pair?

The pair includes one 50 mg vial and one 100 mg vial of AHK-Cu, 150 mg in total, both supplied as lyophilized powder with batch documentation. Both vials contain the same compound, also designated Copper Tripeptide-3. For research use only.
02

Is AHK-Cu 100 mg the same as AHK-Cu 50 mg?

Yes. Both vials contain the same compound produced to the same specification. Only the quantity of powder differs. A 100 mg vial is not a different grade, a different preparation, or a product intended for a different research area than a 50 mg vial.
03

Why supply two different fill masses together?

Two fill masses allow a target concentration to be reached at two different prepared volumes. With one fill mass, concentration and volume are locked together. With both, the amount of solution prepared can be matched to what an experiment requires without preparing a stock and diluting it.
04

What concentration does a 50 mg AHK-Cu vial give?

A 50 mg vial gives 50 mg/mL at 1 mL, 25 mg/mL at 2 mL, 16.7 mg/mL at 3 mL, and 10 mg/mL at 5 mL. Actual volume is limited by vial capacity, which should be confirmed before selecting a target concentration.
05

Can I get the same concentration from either vial?

Yes, at different volumes. Because the fill masses differ by a factor of two, 25 mg/mL is reached with 2 mL from the 50 mg vial or 4 mL from the 100 mg vial. That flexibility is the practical reason to hold both fill masses.
06

Which AHK-Cu vial size should I choose?

Neither is preferable in general. The 50 mg vial suits smaller preparations; the 100 mg vial suits larger prepared volumes at the same concentration. Holding both suits work spanning a concentration range or where one vial is retained lyophilized as reserve material.
07

Is this pair a comparison between two strengths?

No. Both vials contain the same compound to the same specification, so no scientific comparison exists between them. The pair is supplied for concentration-range flexibility and quantity. Researchers seeking a genuine comparative pairing should consider AHK-Cu alongside GHK-Cu instead.
08

What is AHK-Cu?

AHK-Cu is the copper(II) complex of alanyl-histidyl-lysine, designated Copper Tripeptide-3. It is a synthetic analog of GHK-Cu, differing by one residue at position 1. Its published literature is narrower than GHK-Cu's, and several widely repeated characterisations are not independently well established.
09

What should be verified on the certificate of analysis?

Check identity, peptide purity, copper content and lot number for each vial separately. Copper content matters specifically for metal complexes, since a peptide purity figure alone does not confirm that copper is present at the correct stoichiometry. The two vials may be filled from different lots.
10

Can AHK-Cu be used on humans or animals?

No. Both vials are supplied for laboratory research only. They are not intended for human consumption, therapeutic use, veterinary use, or diagnostic applications, and no dosing, protocol or administration guidance is provided for them.