Peptide library
Your guide to this compound.
Isolated follicles and cultured dermal cells allow mechanistic experiments, but cannot measure a patient’s hair density, cosmetic satisfaction or long-term scalp safety. Copper-peptide identities must stay separate.
Existing source snapshot critically reassessed.
Based on the selected source scope described in this profile, often an indexed abstract. Full methods and clinician sign-off remain pending; no systematic-review claim.
Editorial assessment · 2026-09-07
Isolated human follicles ex vivo and cultured cells in vitro; no treated-patient cohort in the cited experiment.
Hair-follicle growth in culture is a research finding; clinical hair density and long-term scalp outcomes were not established.
Ex vivo follicles / in vitro cells; not an injectable or topical clinical product.
A targeted source review, not a complete clinical monograph. Product stability, long-term safety, interactions and jurisdiction-specific authorization require further verification. Research findings do not validate commercial vials.
Pyo and colleagues observed follicle elongation and dermal papilla cell proliferation under laboratory exposure to AHK-Cu.
Pyo and colleagues observed follicle elongation and dermal papilla cell proliferation under laboratory exposure to AHK-Cu.
Ex vivo follicles / in vitro cells; not an injectable or topical clinical product.
The catalog primarily cites laboratory or animal research. Human benefit, a safe dose and long-term risks cannot be inferred from those findings.
The catalog primarily cites laboratory or animal research. Human benefit, a safe dose and long-term risks cannot be inferred from those findings.
AHK-Cu is an alanine–histidine–lysine copper complex studied in isolated human hair follicles and cultured dermal papilla cells. That is laboratory research, not evidence that a scalp product reverses hair loss in patients.
Ex vivo follicles / in vitro cells; not an injectable or topical clinical product.
Pyo and colleagues observed follicle elongation and dermal papilla cell proliferation under laboratory exposure to AHK-Cu.
Ex vivo follicles / in vitro cells; not an injectable or topical clinical product.
Hair-follicle growth in culture is a research finding; clinical hair density and long-term scalp outcomes were not established.
Ex vivo follicles / in vitro cells; not an injectable or topical clinical product.
The cited experiment tested laboratory concentrations, not a validated scalp-serum concentration or injection regimen.
Ex vivo follicles / in vitro cells; not an injectable or topical clinical product.
No human elimination half-life was established in the cited follicle/cell experiment.
Ex vivo follicles / in vitro cells; not an injectable or topical clinical product.
Pyo et al. The effect of tripeptide-copper complex on human hair growth in vitro. Arch Pharm Res. 2007;30:834–839.
Catalog review date: Sep 6, 2026. This date alone does not establish independent clinical review.