The benefits of collagen

What is collagen?

Collagen is the most abundant protein in the human body, accounting for around 30% of total protein. It plays an essential role in the structure and strength of connective tissues such as skin, bones, tendons, ligaments and blood vessels.

There are different types of collagen, the main ones being :

• Type I collagen Present in skin, tendons and bones, it ensures tissue firmness and resistance.

• Type II collagen Specific to cartilage, it contributes to joint health.

• Type III collagen Located in the skin, muscles and blood vessels, it provides suppleness and elasticity.

As we age, collagen production declines, leading to visible signs of aging and joint discomfort. Fortunately, various solutions exist to support collagen production and compensate for this loss.

The benefits of collagen

1. Skin enhancement and anti-ageing effect

Collagen contributes to normal skin formation, ensuring firmness, elasticity and hydration. Its natural depletion promotes the appearance of wrinkles and skin slackening. Several studies show that collagen peptide supplementation visibly improves skin texture and hydration.

2. Joint support and pain reduction

Type II collagen is essential for cartilage, which absorbs shock and preserves joint mobility. Regular intake of collagen hydrolysate can help reduce joint pain and improve flexibility, particularly for athletes and osteoarthritis sufferers.

3. Bone strengthening

Bones are largely composed of collagen fibers, which give them their strength. Collagen depletion can lead to bone fragility and increase the risk of fractures. Studies suggest that taking collagen supplements may help improve bone density.

4. Hair and nail improvement

Collagen plays a role in the growth and strength of hair and nails. Regular consumption can reduce nail breakage and make hair thicker and shinier.

The different forms of collagen and their absorption

Collagen supplementation

Collagen supplementation is generally recommended in the form of collagen hydrolysate or collagen peptides, which have a low molecular weight and are easily absorbed by the body. Among the most popular sources is marine collagen, derived from fish, which has excellent bioavailability.

Collagen creams: limited effectiveness

Collagen creams are often promoted for their anti-aging effects. However, collagen is a large molecule that cannot penetrate the skin barrier and reach the dermis. As a result, these creams mainly provide surface hydration, but do not increase collagen production in the skin.

It's best to use creams rich in peptides that will stimulate the collagen naturally present in your skin.

Collagen injections

Unlike creams, collagen injections are an effective alternative for filling wrinkles and restoring facial volume. They offer immediately visible results and stimulate natural collagen production.

Factors influencing collagen production

Several factors can promote or slow down collagen production:

• Ageing Collagen production declines with age.

• Nutrition A sufficient supply of amino acids (glycine, proline) and vitamin C is essential.

• Sun exposure UV rays break down collagen in the skin.

• Tobacco and alcohol accelerate collagen loss.

• Stress Excess cortisol impairs collagen production.

Conclusion

Collagen is an essential protein for healthy skin, joints, bones and hair. Its production declines with age, so solutions such as marine collagen or collagen peptide supplementation can be beneficial. Collagen creams, on the other hand, have limited effectiveness due to the size of the molecules, and injections remain a more effective solution for visible results. To maintain good collagen levels, it's also essential to adopt a healthy lifestyle and a balanced diet.