GHK-Cu studies and links to each paper

Where each GHK-Cu finding came from

Early GHK-Cu teams wanted to learn how this small copper-bound protein part helped repair tissue. Their work spread to skin, hair, wounds, and the brain. The papers appear below. You can open a paper to check a claim yourself.

A number in brackets, such as ^[6], points to that paper in the list. The list names the people who ran the study and where it appeared. The papers were all checked on the same day. Each summary also says when a test used GHK without copper.

That difference matters because GHK-Cu caused most changes in skin support. Human skin and hair tests tell you more than rat or dish work. Some newer papers ask how GHK-Cu gets through skin. Brain claims still rest on animals or cells.