What is the difference between AHK-Cu and GHK-Cu?

The main difference is mechanism and research stage. AHK-Cu targets Copper-binding tripeptide (Ala-His-Lys) (preclinical / cosmetic research) and is studied for hair-follicle & dermal matrix research; GHK-Cu targets Copper-binding tripeptide (preclinical / cell models) and is studied for collagen & senescence research. Both are research-use-only compounds, not for human or animal use.

Are AHK-Cu and GHK-Cu approved for human use?

No. Renova Wellness supplies both strictly for in-vitro laboratory and scientific research use only. Research status differs — AHK-Cu: preclinical / cosmetic research; GHK-Cu: preclinical / cell models — but neither is sold for human or animal consumption, and no medical, therapeutic, or dosing claims are made.

How is purity verified for AHK-Cu and GHK-Cu?

Every lot of both compounds ships with its own per-batch Certificate of Analysis — identity by mass spectrometry, ≥98% purity by HPLC, and a unique lot number you can verify against the vial in your hand.

Research Comparison

AHK-Cu vs GHK-Cu

AHK-Cu and GHK-Cu are often compared because both sit in regeneration / dermal research. AHK-Cu acts on copper-binding tripeptide (Ala-His-Lys) and is studied for hair-follicle & dermal matrix research, while GHK-Cu acts on copper-binding tripeptide and is studied for collagen & senescence research. Both are supplied as lyophilized powder for in-vitro laboratory research only — this page compares mechanism and research status, not dosing or human use.

AHK-Cu

Regeneration / dermal

GHK-Cu

Regeneration / dermal

Frequently asked

What is the difference between AHK-Cu and GHK-Cu?: The main difference is mechanism and research stage. AHK-Cu targets Copper-binding tripeptide (Ala-His-Lys) (preclinical / cosmetic research) and is studied for hair-follicle & dermal matrix research; GHK-Cu targets Copper-binding tripeptide (preclinical / cell models) and is studied for collagen & senescence research. Both are research-use-only compounds, not for human or animal use.
Are AHK-Cu and GHK-Cu approved for human use?: No. Renova Wellness supplies both strictly for in-vitro laboratory and scientific research use only. Research status differs — AHK-Cu: preclinical / cosmetic research; GHK-Cu: preclinical / cell models — but neither is sold for human or animal consumption, and no medical, therapeutic, or dosing claims are made.
How is purity verified for AHK-Cu and GHK-Cu?: Every lot of both compounds ships with its own per-batch Certificate of Analysis — identity by mass spectrometry, ≥98% purity by HPLC, and a unique lot number you can verify against the vial in your hand.

Related comparisons

BPC-157 vs GHK-Cu GHK-Cu vs Glutathione

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Research references

Primary literature for AHK-Cu and GHK-Cu. Provided for scientific context only — not medical or dosing guidance.

Maquart FX, et al. Stimulation of collagen synthesis in fibroblast cultures by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu²⁺. FEBS Lett. 1988. PMID 3169264 →
Pickart L, Margolina A. Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data. Int J Mol Sci. 2018. PMID 29986520 →

Research use only. This comparison covers mechanism, target, and research status. It is not medical, therapeutic, or dosing advice. Compounds sold by Renova Wellness™ are for in-vitro laboratory research and are not for human or animal consumption.