# GHK-Cu collagen experiments

> GHK-Cu and collagen | Evermore Aesthetics — Evermore Aesthetics revisits GHK-Cu collagen synthesis in human cell cultures and the wider tissue-remodelling literature.

**The collagen file**

The collagen experiment rewards my fondness for small, answerable questions.

## Human fibroblast cultures, 1988

In the [1988 experiment, GHK-Cu stimulated collagen synthesis in cultured human fibroblasts](https://pubmed.ncbi.nlm.nih.gov/3169264/). Fibroblasts are the connective-tissue cells used here. Stimulation began between 10^-12 and 10^-11 M and was maximal at 10^-9 M; M expresses the concentration in the culture medium. These are experimental concentrations.

The response occurred without a change in cell number. That clause makes the result more satisfying to me: the investigators had observed a specific metabolic effect, rather than simply ending up with more cells making material.

There is an intimacy to this experiment that the phrase ‘anti-aging’ loses. A particular cell population, a substance in its medium, a change in collagen synthesis. I can take that seriously without asking it to account for the appearance of an entire face.

![Two illustrated technicians working with a microscope and a culture dish at a laboratory bench](images/collagen-culture-bench.webp)

*An imagined tissue-culture bench, illustrated in a period style; it does not depict the investigators or laboratory in the paper.*

## Matrix remodelling

I had pictured repair as an exercise in adding material. The [tissue-remodelling review](https://pubmed.ncbi.nlm.nih.gov/18644225/) makes that picture look too simple. Across the human and animal studies it discusses, GHK-Cu is associated with increased synthesis of collagen and elastin, but also metalloproteinases and anti-proteases.

The matrix is the material around cells. Its remodelling involves breakdown as well as synthesis. I rate the broader activity as its most interesting feature; the phrase ‘collagen booster’ leaves much of the subject out.

That is also where enthusiasm needs some discipline. A review assembling different models offers a larger biological account than the original culture experiment. The work described spans settings with different demands. The complexity persuades me, while the size of its cosmetic effect remains a separate question.

## Other matrix materials

The [skin-regeneration review describes dermatan sulfate, chondroitin sulfate and decorin synthesis alongside collagen](https://pmc.ncbi.nlm.nih.gov/articles/PMC4508379/). The list helps explain why these papers talk about remodelling a tissue rather than manufacturing a single ingredient.

This is the GHK-Cu account I enjoy most: experiments about a material and its upkeep. A wrinkle result would be welcome evidence of something visible, but the culture work already has an intelligible subject of its own.

The next file moves to [cosmetic skin outcomes](/skin-results), where the meaning of an increase has to become more exact again. A response in cultured cells and a change measured in treated subjects each deserve their own space.

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At Evermore Aesthetics I sift published research on skin and repair for an editorial archive, with no aesthetics business or medical advice behind the name.