GHK-Cu and AHK-Cu: similar names, different evidence
AXON Research Institute • AXON Peptide affiliation
Educational draft • Scientific + legal review pending
Silent film with full on-screen captions. Conceptual illustrations, not molecular structures.

One letter changes, and the evidence changes with it. GHK-Cu and AHK-Cu are related copper-binding peptides, not interchangeable treatments. GHK-Cu has laboratory work on collagen production in fibroblasts, cells involved in connective tissue. That finding is a starting point for skin research. A frequently cited AHK-Cu study tested isolated human hair follicles and cultured follicle cells. Hair growth outside the body is not a clinical trial for hair loss. Neither study shows which peptide is better in people. Formulation and delivery matter, and topical cosmetic evidence cannot be carried over to injections. Compare the actual study, not the similarity of the names.

END CARD
Evidence first. Educational only. Sources in description.

SOURCES
[1] Stimulation of collagen synthesis in fibroblast cultures by the tripeptide-copper complex GHK-Cu
https://pubmed.ncbi.nlm.nih.gov/3169264/
Primary cell-culture study

[2] The effect of tripeptide-copper complex on human hair growth in vitro
https://pubmed.ncbi.nlm.nih.gov/17703734/
Primary ex vivo human hair-follicle and cultured dermal-papilla-cell study

[3] FDA: Certain bulk drug substances that may present significant safety risks
https://www.fda.gov/drugs/human-drug-compounding/certain-bulk-drug-substances-use-compounding-may-present-significant-safety-risks
US regulator; route-specific safety assessment, not a universal ban or approval list

[4] FDA: Cosmetics and U.S. Law
https://www.fda.gov/cosmetics/cosmetics-laws-regulations/cosmetics-us-law
US regulator; cosmetic versus drug framework

EVIDENCE LIMITATIONS
Do not portray ex vivo human tissue as a human treatment study.
Do not claim AHK-Cu regrows hair or GHK-Cu rejuvenates skin based on these experiments.
Do not infer equivalence of any commercial formulation with a studied laboratory preparation.

TOPIC INVENTORY PROVENANCE (not reused audiovisual media)
https://www.facebook.com/reel/1552873936594488/