Evidence guide

GHK-Cu Dosage

GHK-Cu evidence spans topical, cell, and animal models. Those forms and routes are not interchangeable, so no single validated dosage schedule covers them.

Topical evidence dominates

Much of the human-facing skin literature concerns topical formulations.

Route changes the question

Cell culture, topical exposure, and injectable research are different evidence categories.

No universal label

GHK-Cu is not FDA-approved as a drug for a medical indication.

Why form and route matter

A concentration used in a laboratory assay does not establish a topical or systemic dose. Copper complex stability, delivery vehicle, exposure time, and endpoint all affect interpretation.

What a credible claim must identify

The exact GHK-Cu form and assay.
The route and delivery vehicle.
The model or population studied.
The measured endpoint and study duration.