AHK-Cu

Human evidence can mean a controlled clinical study, an observational study, a safety or exposure report, or evidence from a particular finished formulation. Those are different kinds of information.

Mostly laboratory or animal evidence. The evidence is mainly from cells, tissues, or animals. Any human information is limited or indirect and does not establish a clinical outcome.

Preclinical means research in cells, tissues, or animals rather than in people. It can help researchers form a hypothesis, but it cannot establish a human benefit or a complete human safety profile.

The same study evaluated cultured cells and isolated follicles. These models can support a biological hypothesis but cannot establish cosmetic or hair-growth effectiveness in living people.[2]

Preclinical findings do not establish outcomes in people.

Risk information may describe the compound, a finished product, a route, a population, or product-quality concerns. The cited material does not replace a current product label or an individual professional assessment.

This section is about the United States only. Status applies to a product, formulation, route, population, and use—not to a name in the abstract. A status shown here is not a recommendation or a statement about another country.

• Source/status dateJul 22, 2026

  Cosmetic / topical

  AHK-Cu may appear as a cosmetic ingredient. Cosmetics generally are not FDA-approved before marketing, and no FDA-approved AHK-Cu drug product was identified.

  Specific product form or route is not separately published in this status record.

  Open source context

The date above is the date attached to the published status record or source context. It is not necessarily the original approval date.

These prompts help organise a conversation with a qualified professional. They do not create a treatment recommendation, dose, or protocol.

• EvidenceWhich human evidence applies to the exact product, form, route, and use being discussed?
• What remains uncertainWhat is known, and what remains uncertain for this specific context?
• RisksWhich important warnings, common effects, and product-quality concerns should be discussed?
• U.S. statusWhat does the U.S. status cover, and what does it not cover?

Related means that the profiles share a topic, pathway, product context, or research question. It does not mean that they are equivalent.

• GHK-CuBoth are copper-binding tripeptides used in topical cosmetic research, but their amino-acid sequences differ.

PeptideGrid review date: Jul 22, 2026. Sources support the specific sections that cite them. Publication does not imply endorsement, equivalence, or individual suitability.

1. 1

   FDA authority over cosmetics

   U.S. Food and Drug Administration. FDA Authority Over Cosmetics: How Cosmetics Are Not FDA-Approved, but Are FDA-Regulated.

   U.S. Food and Drug Administration · Published Dec 20, 2022 · Accessed Jul 22, 2026 · Regulatory source

   Open source
2. 2

   AHK-Cu and human hair growth in vitro

   Pyo HK, et al. The effect of tripeptide-copper complex on human hair growth in vitro. Archives of Pharmacal Research. 2007;30(7):834-839.

   PubMed-indexed primary study · Published Jul 1, 2007 · Accessed Jul 22, 2026 · Preclinical study

   Open source