Collagen.
The word is everywhere.
In skincare products.
In dietary supplements.
In discussions about skin aging.
It has become almost impossible to talk about firmness or wrinkles without mentioning it.
And yet, behind this notoriety lies a biological reality far more interesting than the promises that sometimes accompany it.
Collagen is not simply “the protein of youth.”
It is above all one of the essential structural components of our skin.
To understand its importance, we need to look beneath the surface.
Where is collagen found in the skin?
Our skin is organized into several layers.
The epidermis is on the outside.
Beneath it lies the dermis.
Collagen fibers are found primarily in the dermis, where they contribute to the skin's architecture and mechanical strength.
This structure can be imagined as a network.
This network does not work alone.
It coexists in particular with elastin, hyaluronic acid, and many other components of the extracellular matrix.
The skin's visual and mechanical quality therefore depends on a whole system.
Not just a single molecule.
Who produces collagen?
In the dermis, certain cells called fibroblasts contribute in particular to producing components of the extracellular matrix, including collagen.
This production is part of the skin's natural functioning.
But it is not unchanging.
As we explained in our article on how skin changes with age, various biological mechanisms gradually change over the course of life.
Collagen is not exempt from this process.
What happens over time?
With age, collagen synthesis and organization change.
At the same time, the mechanisms responsible for its breakdown continue to exist.
Gradually, the balance changes.
The dermal network may become less dense and less organized.
This process contributes to several visible changes:
a gradual decrease in firmness,
a change in elasticity,
the appearance and development of certain wrinkles,
as well as an overall change in the architecture of the face.
But it would be too simple to attribute all signs of aging solely to collagen.
Skin ages as a system.
Does the sun affect collagen?
Yes, and significantly.
Ultraviolet radiation contributes to skin photoaging.
Repeated exposure can promote various mechanisms leading to the deterioration of structures present in the dermis, notably the collagen network.
This is why sun protection has a particular place when discussing the prevention of visible signs of aging.
We often look for an active ingredient capable of “producing more collagen.”
But preserving the structures already present is also a fundamental strategy.
Care sometimes begins with protection.
So why do wrinkles appear?
Because a wrinkle is never the result of a single phenomenon.
Collagen plays a role.
But other factors also play a role:
elastin,
hydration,
the reduction of certain lipids,
repeated facial movements,
gravity,
environmental exposure,
and the gradual changes in the different tissues of the face.
An expression line does not have exactly the same origin as a fine line accentuated by dehydration.
The face is a complex architecture.
And that is precisely why overly simple explanations are rarely the most accurate.
Can collagen be applied directly to the skin?
Yes, collagen or some of its derivatives can be incorporated into cosmetic formulations.
But this does not mean that a collagen molecule applied to the surface of the face will cross the skin to directly rebuild the dermal collagen network.
This idea is too simplistic.
Collagen molecules are relatively large.
In a cosmetic formulation, their relevance may relate in particular to surface properties, the film formed on the skin, or comfort and hydration, depending on the material used.
Applying collagen therefore does not amount to directly replacing the collagen lost in the dermis.
This distinction is essential.
And hydrolyzed collagen?
When collagen is hydrolyzed, it is broken down into smaller components, notably peptides.
Their behavior then differs from that of native collagen.
But here again, the simple presence of the word “collagen” in a formula does not make it possible to determine the product’s effect.
- The nature of the material.
- Its degree of hydrolysis.
- Its concentration.
- The rest of the formulation.
- Everything matters.
In cosmetics, an ingredient never exists in isolation.
Can a cream stimulate collagen production?
Some cosmetic ingredients have data showing that they can influence mechanisms associated with collagen or improve certain visible signs of aging.
But this must be distinguished from the idea that any « collagen cream » would mechanically rebuild the dermis.
That is not the same thing.
A serious formulation should therefore be assessed based on its active ingredients, their relevant concentrations, the quality of the formula as a whole, and the evidence supporting the claims.
Not simply based on a striking word placed on the label.
Why do we hear so much about peptides?
Peptides are small chains of amino acids.
Some are used in cosmetics for different functions, and some have been studied for their ability to interact with skin mechanisms.
They are sometimes presented as « messengers ».
This image can be useful, provided it is not turned into a universal promise.
- Not all peptides are identical.
- Their activity depends on their structure.
- Their concentration.
- Their stability.
- And their ability to work in the final formula.
- Here again, precision matters more than the trend.
And what about collagen supplements?
This is a different subject from topical cosmetics.
Ingested collagen is digested.
It is not transported intact to the face to directly « fill » a wrinkle.
Proteins are broken down into peptides and amino acids during digestion.
Some research on hydrolyzed collagen peptides suggests possible effects on certain skin parameters, but the results depend on the products studied, the doses, the duration, and the quality of the studies.
A dietary supplement and a cream are therefore two entirely different approaches.
And none of them should be presented as a way to simply replace lost collagen.
Can collagen loss be prevented?
We cannot prevent time from passing.
And that is not our objective.
But certain factors responsible for premature aging can be limited.
UV protection is one of them.
Smoking is also an important adverse factor for the skin.
More broadly, a consistent routine helps support the skin without continually subjecting it to unnecessary aggressions.
It may seem less spectacular than a promise of rebuilding.
But it is often much more serious.
Collagen does not explain everything
This is probably the most important message in this article.
We have turned collagen into a symbol of skin aging.
But skin cannot be reduced to its collagen.
Its beauty also depends on its hydration.
- Of its skin barrier.
- Of its suppleness.
- Of its texture.
- Of its radiance.
- Of its comfort.
- And numerous biological structures that evolve simultaneously.
Looking for a single culprit almost always leads to looking for a single miracle product.
Yet the skin never works that way.
At SHAYKO, we prefer to speak of contour rather than youth
This nuance notably explains the name GALBE in our Face universe.
The word does not promise to turn back time.
- It evokes a shape.
- A harmony.
- A presence.
Skin whose suppleness and appearance we seek to support as it changes.
This approach seems more accurate to us than the promise of eternal youth.
Because skincare can accompany time.
It does not need to pretend to erase it.
Caring for collagen also means caring for the whole
Properly hydrating the skin does not recreate its collagen.
But hydrated skin generally appears more supple, and some superficial fine lines may seem less visible.
Adding lipids does not rebuild the dermis.
But it can considerably improve the comfort of skin that has become drier.
Protecting the skin from the sun does not stop aging.
But this helps limit part of photoaging.
Each gesture therefore has a purpose.
And it is their coherence that shapes skincare.
Science also allows us to relinquish impossible promises
Understanding collagen ultimately brings us back to something very simple.
A complex biological substance should never be reduced to a marketing argument.
Science takes nothing away from the poetry of skincare.
On the contrary, it gives it depth.
It enables understanding.
To choose.
And sometimes saying:
no, a cream cannot do that.
This ability to set a limit matters.
Because trust also arises from what we refuse to promise.
At SHAYKO, we therefore prefer to support the skin as it is.
Respecting its architecture.
Understanding how it changes.
And working with time rather than against it.
Because precision does not mean promising the impossible.
It means knowing exactly where skincare can begin - and where its promise must end.
“Understanding the skin also means knowing the limits of skincare. Precision begins where impossible promises end.”
SHAYKO Grasse
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