What is collagen and why is everyone talking about it?

Qu’est-ce que le collagène et pourquoi tout le monde en parle ?

In both cosmetics and nutricosmetics, collagen has become an essential ingredient. It's found in anti-aging skincare, dietary supplements, dermatology, and even K-Beauty. But what exactly is collagen, why is it so important for the skin, and why is everyone talking about it today?
At Lili Margo , a French brand specializing in natural and innovative skincare, we are particularly interested in the science of skin active ingredients. Among them, collagen plays a central role in our SK•IN GEN Soluble Nanofiber Collagen Mask , formulated with 99% collagen and 1% hyaluronic acid.

What exactly is collagen?

Collagen is a protein naturally produced by the human body. It makes up approximately 30% of the body's total protein and up to 80% of the skin's protein. This network of fibers ensures skin firmness , density , and structure .
Collagen is found in: skin, bones, tendons, ligaments, cartilage and vascular walls.
At the skin level, it is the fibroblasts that produce it.

Why does collagen production decrease over time?

From around the age of 25, collagen production begins to decline gradually. This natural phenomenon can be accelerated by various factors.

Internal factors

  • biological aging
  • genetic
  • hormonal fluctuations

These factors can lead to a lack of firmness, wrinkles, and thinner skin.

External factors

  • UV exposure
  • urban pollution
  • tobacco
  • oxidative stress
  • lack of hydration
  • diet low in antioxidants

The result is visible on the skin: wrinkles, loss of elasticity, lack of radiance.

Why is everyone talking about collagen today?

Collagen has become a "star" active ingredient for several reasons:

  • Slow aging : preserving rather than correcting
  • Nutricosmetics : Explosion of collagen supplements
  • K-Beauty : Focus on glow and firmness
  • Non-invasive alternatives to injections

Collagen is thus at the crossroads of skincare, health and well-being.

Collagen in cosmetics: how does it work?

In cosmetics, collagen can be used in three ways:
1. Topical application: Creams, serums, masks: immediate moisturizing, smoothing and plumping effect.
2. Targeted application via patches: Localized and visible action on marked areas (forehead wrinkles, furrows, eye contour).
3. Nutricosmetics: Collagen food supplements, associated with well-being and skin.

Are all collagens created equal?

Several families of collagen are distinguished: Bovine collagen, Marine collagen and Soluble collagen in nanofibers (targeted skincare).

Focus on SK•IN GEN: the soluble collagen innovation

Lili Margo's SK•IN GEN Soluble Nanofiber Collagen Mask perfectly illustrates innovation in this field. Its formula contains 99% collagen and 1% hyaluronic acid.
This treatment contains 10 million nanofibers distributed across 188 layers . Upon contact with moistened skin, the fibers gradually dissolve.
It is applied to areas prone to signs of aging: frown lines, eye contour, nasolabial folds, forehead wrinkles...
The protocol involves moistening the skin, applying the patch, re-moistening to dissolve the fibers, and patting until absorbed.
Observed benefits: immediate smoothing effect, deep hydration, more elastic skin, less visible wrinkles.

Conclusion

Collagen has become such a crucial topic because it connects beauty, life sciences, and well-being. Understanding how it works allows us to manage skin aging more respectfully.
With SK•IN GEN Soluble Nanofiber Collagen Mask , Lili Margo offers a new approach to collagen: clean, sensorial and effective, with visible results from the first use.

Discover SK•IN GEN on lilimargo.com and explore a new generation of clean and innovative anti-aging skincare.

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