Collagen – structural protein & importance for the skin

What is collagen?

Collagen is the most abundant protein in the human body and an essential component of skin, bones, cartilage, and tendons. In the skin, it forms a framework that provides strength and elasticity. Without collagen, the skin would lose its structure and sag.

The role of collagen in the skin

Collagen in the skin's connective tissue provides elasticity and firmness. It makes up about 70% of skin proteins. With age and due to external factors such as UV radiation or smoking, collagen production decreases – the skin loses volume, and wrinkles appear.

How does skin care affect collagen?

Topical collagen creams tend to have a superficial effect, as collagen molecules are too large to penetrate deeply. Ingredients that stimulate the body's own collagen synthesis are more effective:

• Retinoids (e.g. retinol): stimulate collagen production and improve skin texture.
• Vitamin C: essential for collagen synthesis and antioxidant protection against free radicals.
• Peptides: act as “signaling molecules” and stimulate skin cells to produce.
• Niacinamide: strengthens the skin barrier and improves elasticity.

Oral collagen preparations

Collagen can also be taken through dietary supplements in the form of hydrolysates (peptides). Studies show that these can improve skin hydration and elasticity. However, the effectiveness remains individual and depends on dosage and quality.

Lifestyle & Collages

Certain factors accelerate the breakdown of collagen:

• UV radiation – the main cause of photoaging
• Smoking – inhibits collagen production
• Unhealthy diet (sugar & alcohol)
• Chronic stress & lack of sleep

A healthy lifestyle with sun protection, a balanced diet and sufficient sleep helps the skin retain its collagen for longer.

Conclusion

Collagen is the foundation of youthful skin. It provides firmness, elasticity, and a smooth surface. While collagen creams alone don't work deeply, modern active ingredients and lifestyle factors can boost the body's own production. Luxurious skincare concepts—like NATURFACTOR® —combine antioxidants, peptides, and high-tech formulations to strengthen the skin from within.

Sources

1. American Academy of Dermatology – Anti-aging skin care https://www.aad.org
2. DermNet NZ – Collagen and skin https://dermnetnz.org
3. NCBI – Collagen in dermatology https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7083992/