# Evertrue Aesthetics, in ordinary light

> Evertrue Aesthetics — skin in ordinary light — Evertrue Aesthetics follows GHK-Cu through collagen, skin and hair research. A close look at visible change, measured change and the space between them.

**Copper peptides and appearance**

Beauty claims sound different beside the actual measurements. I trust a beauty claim more once the favourable lighting has gone.

## GHK-Cu and collagen

Evertrue sounds like a demanding word to put beside aesthetics. Something can look persuasive in flattering light and become less convincing when the light changes. I want a beauty claim to withstand the same ordinary inspection as anything else. GHK-Cu rewards that kind of inspection: beneath the language of rejuvenation, there are experiments with quite particular answers.

In [human fibroblast cultures, GHK-Cu stimulated collagen synthesis without changing cell number](https://pubmed.ncbi.nlm.nih.gov/3169264/). Fibroblasts are the cells making collagen in this experiment. That last observation gives the result its character. More collagen appeared without an accompanying increase in the number of cells producing it. This economical result pleases me; it identifies a change in cellular activity rather than leaving everything inside the word “growth.”

The [tissue-remodeling review](https://pubmed.ncbi.nlm.nih.gov/18644225/) ranges much more widely, through collagen and elastin production, repair-cell recruitment and wound-healing models involving humans and animals. Its breadth is fascinating. I start arguing with the summary when all of those different observations are compressed into a single claim about how a face will look. The cultured cells deserve their own interesting result before being recruited into that larger argument.

## Visible skin changes

Cosmetic outcomes deserve to be the opening question here. A [review of skin-regeneration research](https://pmc.ncbi.nlm.nih.gov/articles/PMC4508379/) describes placebo-controlled improvements in skin laxity, clarity, fine lines, wrinkle depth and density with topical GHK-Cu. Those are recognisable cosmetic outcomes. The same review also reports collagen-production findings, which answer a different question about the tissue.

The distinction gives me room to be enthusiastic about appearance without pretending that every favourable measurement describes the same improvement. Changes in laxity, increased collagen production and a change in wrinkle depth can each matter on their own terms. They require their own descriptions.

[The skin page](/skin) dwells on the much-repeated comparison involving collagen production in treated women. It is a useful place to slow down: the percentage of participants showing an increase is easy to mistake for the size of the increase itself.

## Skin passage and hair counts

I am less charmed by a long list of possible effects than by an awkward practical obstacle. The [anti-wrinkle review identifies poor skin permeability as a central problem for GHK](https://pmc.ncbi.nlm.nih.gov/articles/PMC11830136/). A molecule can produce an interesting response in an experiment while its passage through skin remains a separate challenge. [The delivery investigation](/delivery) follows copper through prepared human skin and asks where the measurement ends.

Hair introduces a different complication. A [trial in men with androgenetic alopecia tested a complex containing both GHK and 5-aminolevulinic acid](https://pmc.ncbi.nlm.nih.gov/articles/PMC4969472/). Its favourable hair-count result belongs to that combination. I am glad the trial exists; I also dislike watching the other ingredient disappear when the result gets retold. [The hair essay](/hair) stays with the mixture that was actually studied.

## Lasting change

The “ever” in the name is the hardest part to earn. The [gene-data review reports changes in gene expression associated with repair and cellular protection](https://pmc.ncbi.nlm.nih.gov/articles/PMC6073405/). The analysis concerns gene activity in laboratory and database work. A claim about how long a person will retain a cosmetic improvement needs observations of that duration in people.

The gene figures were my initial favourite. The more persuasive starting point, in my opinion, is quieter: which material was tested, which tissue was observed, and which change was recorded. [The gene-data essay](/gene-data) returns to the large figures with those questions in mind. The possibility of something useful remains. It becomes easier to discuss once its outline is sharp. A cosmetic story can stay interesting after its adjectives have been removed. The experiments have enough texture.

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At Evertrue Aesthetics I put beauty claims under the light of published research; this is my editorial notebook, not an aesthetics business or a source of medical advice.