Fibroblast cultures were exposed to the GHK-Cu complex, and researchers examined collagen production alongside changes in cell number.
What the researchers measured
Collagen synthesis and cell counts. Collagen is a structural protein in connective tissue; fibroblasts are cells that help produce that tissue.
How to read this evidence
Researchers studied cells, isolated tissue, or animals. These experiments can help explain a mechanism, but do not establish benefits or safety in people. Human cells grown in a laboratory also belong in this category.
Results in context
The reported increase in collagen production was independent of cell-number changes. This is a laboratory production measure, rather than a test of visible skin improvement, wound closure, or outcomes in people.
What this does not establish
A cell-culture endpoint does not establish visible skin changes, clinical wound healing, or the safety of an administration route.
Publication & source
Why this paper is included
Fibroblast cultures were exposed to the copper complex GHK-Cu to measure collagen synthesis.
Publication indexing
Journal Article · Research Support, Non-U.S. Gov't