Collagen is the most abundant protein in our bodies, acting as the “cement” that holds our tissues together.

It is crucial for the health of our skin, our joints, and our bones. While its production decreases with age, a suitable diet, quality supplements, and good lifestyle habits can help maintain optimal levels.

What is collagen, and what is its role?

Collagen is the most common structural protein in mammals, accounting for about 25 to 35% of the total protein content of the human body. Think of it as the framework or the glue that gives shape, strength, and elasticity to our connective tissues. It is found in the skin, the bones, the tendons, the ligaments, and the cartilage.

Its unique structure is made up of long chains of amino acids (glycine, proline, and hydroxyproline) that wind into a robust triple helix. It is this structure that gives our tissues incredible tensile strength, allowing our skin to stay firm and our bones to bear our weight.

Book an appointment

The different types of collagen: a family with many roles

There are at least 28 different types of collagen. The five most important and most abundant are:

  • Type I collagen: The most abundant (90%). It is found in the skin, the bones, and the tendons. It is the key type for strength and elasticity.
  • Type II collagen: Mainly in elastic cartilage (joints). It is crucial for joint health.
  • Type III collagen: Abundant in young skin and the blood vessels. Contributes to the elasticity of tissues.
  • Type IV collagen: Forms a lattice to support the basement membranes (skin, kidneys, lungs).
  • Type V collagen: Found in cell surfaces, the hair, and the placenta.

Smiling woman sitting on a blue sofa

Why is collagen so important for our health and beauty?

The abundant presence of collagen in the human body is no accident. Its roles are many, and vital to our general well-being and our appearance.

  • The skin: It provides firmness and elasticity. With age, its decline leads to wrinkles and sagging skin.
  • The joints: Type II collagen is a major component of cartilage, allowing fluid, pain-free movement.
  • The bones: It provides the flexible structure on which minerals are deposited to ensure bone density.
  • The muscles: Collagen is vital for their structure, their strength, and their recovery after exercise.
  • The hair and nails: It is a building block that strengthens their growth and reduces their fragility.
  • Gut health: It takes part in the formation and repair of the lining of the digestive tract.

Book an appointment

How can you support and stimulate collagen production?

The natural production of collagen begins to decline from the age of 25–30. Fortunately, there are ways to support it.

Diet: your first line of defense

  • Amino acids: Eat foods rich in proline and glycine, such as bone broths, meat, fish, eggs, and legumes.
  • Vitamin C: Indispensable for collagen synthesis. Sources: citrus fruits, kiwis, bell peppers, broccoli.
  • Minerals: Zinc and copper are also essential. Sources: seafood, nuts, seeds.
  • Antioxidants: Anthocyanins and polyphenols (berries, green tea) protect existing collagen.

Collagen supplements: targeted support

Hydrolyzed collagen peptides are the most common and most bioavailable form.

How do you choose them?

  • Opt for high-quality products from sustainable sources (bovine or marine), and check that they are “hydrolyzed” for better absorption. Dosage
  • An intake of 5 to 15 grams a day is common for skin and hair.

Lifestyle: protection and prevention

  • Sun protection: UV exposure is one of collagen’s worst enemies.
  • Quitting smoking: Smoking damages collagen fibers.
  • Enough sleep and stress management: The body repairs itself during sleep.
  • Hydration: Essential for maintaining the skin’s elasticity.

Collagen myths and facts

Are collagen creams effective? Collagen molecules are too large to penetrate the skin. These creams can hydrate, but they do not increase the body’s own production of collagen. Oral supplements are more effective.

Is there such a thing as vegan collagen? Collagen is a protein of animal origin. Vegan alternatives help boost the body’s natural production by providing the necessary nutrients.

Conclusion: collagen, a pillar of your lasting well-being

Collagen is the true cement that supports our bodies from head to toe. From the resilience of our skin to the suppleness of our joints, it is everywhere and essential.

Although its production naturally declines, it is possible to optimize it through a targeted diet, quality supplements, and healthy habits. Understanding its vital role allows us to make informed choices to preserve our vitality and our beauty over the long term.

FAQ

At what age should you start taking collagen?

Natural production begins to decline around the age of 25–30. That is a good time to start thinking about it, particularly if you notice the first signs of aging or if you have joint pain.

How long does it take to see the effects of collagen?

It varies from person to person, but most clinical studies show significant results after 8 to 12 weeks of regular supplementation. Consistency is key.

Do collagen supplements have side effects?

Collagen is generally well tolerated. Some people may experience mild digestive upset, bloating, or a feeling of heaviness. In rare cases, allergic reactions can occur if the source is an allergen (for example, marine collagen for people allergic to fish).

Is it better to choose marine or bovine collagen?

Both are effective. Marine collagen is often considered to have better bioavailability (better absorbed) and is generally Type I. Bovine collagen is also rich in Type I and III. The choice often depends on personal preference or possible allergies.