What Does Collagen Do

Collagen is often spoken about in conversations around skin health, beauty, and joint support, but many people are not entirely sure of what it actually does. At its most basic level, collagen is the body’s most abundant protein, found in the skin, bones, tendons, cartilage, and connective tissues. It provides structure, strength, and elasticity, acting as the glue that holds the body together. Without collagen, our skin would not remain firm, our joints would not move smoothly, and our overall resilience would be greatly reduced. Understanding collagen and the wide variety of roles it plays helps explain why it is so closely linked with ageing and wellbeing.

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Collagen and Skin Health

One of collagen’s most important roles is in the skin. It forms a supportive network that helps the skin remain firm, smooth, and hydrated. When collagen levels are plentiful, the skin has a plump and youthful appearance, with fewer visible lines or sagging. As we age, the body gradually produces less collagen, and the fibres that remain can weaken, leading to a loss of elasticity and the appearance of wrinkles. While skincare products can help to protect the surface of the skin, collagen provides strength from within, which is why it is often a focus in anti-ageing discussions.

Collagen in Hair and Nails

Collagen also plays a part in the strength of hair and nails. Nails are made from keratin, another structural protein, and collagen helps provide the amino acids needed to support their growth and resilience. Similarly, collagen contributes to the health of the hair follicle, supporting thicker and stronger hair growth. People who struggle with brittle nails or thinning hair sometimes explore collagen supplements as a way to encourage natural growth and support these tissues from within.

Collagen and Joints

Collagen is essential for joint health because it makes up a significant part of cartilage, the smooth tissue that cushions bones and allows them to move without friction. Over time, collagen levels in cartilage can decline, leading to stiffness and discomfort. This is one of the reasons why joints may feel less flexible as we get older. By supporting collagen production, it may be possible to maintain healthier, more mobile joints for longer. For those who exercise frequently or experience joint strain, collagen can provide valuable support in keeping the body moving comfortably.

Collagen and Bones

Although we often think of calcium when discussing bone health, collagen is equally important. Collagen gives bones their structure and strength, acting as a framework for mineral deposits. As we age and collagen levels fall, bones can become more fragile, which increases the risk of fractures. Supporting collagen levels can therefore play a role in keeping bones resilient, particularly for people who are concerned about long-term bone health.

Collagen and Muscle Function

Muscles also rely on collagen, as it helps to keep them strong and properly connected to tendons. Collagen contributes to muscle recovery after exercise, supporting repair and growth. Some research suggests that supplementation may be particularly useful for maintaining muscle mass in older adults, when natural collagen production is in decline. For those who train regularly, collagen may help the body to recover more effectively, reducing soreness and improving overall performance.

Collagen and Gut Health

Another area where collagen is thought to be helpful is in the digestive system. Collagen is found in the lining of the gut, where it contributes to tissue repair and barrier function. While this area of research is still developing, many people believe that collagen can support overall gut health by strengthening the intestinal lining. A healthy gut, in turn, supports better nutrient absorption and general wellbeing.

The Impact of Ageing on Collagen

Collagen production naturally declines from our mid-twenties, which is why the signs of ageing become more noticeable over time. Factors such as sun exposure, smoking, stress, and poor nutrition can accelerate this decline by breaking down collagen fibres more quickly. Supporting collagen through good nutrition, lifestyle habits, and supplements where appropriate can help slow the process and maintain healthier skin, joints, and tissues for longer.

Can Collagen Supplements Help?

Collagen supplements are usually made from hydrolysed collagen, which has been broken down into smaller particles called peptides. These peptides are easier for the body to absorb and can stimulate the production of new collagen. Many people take them for skin benefits, such as improved hydration and reduced appearance of fine lines, while others focus on joint comfort, bone health, or stronger hair and nails. While results vary, studies suggest that with consistent use, collagen supplements can make a difference over time.

A Balanced View of Collagen’s Role

Collagen is not a miracle cure for ageing or health concerns, but it does play a fundamental role in keeping the body strong and resilient. It should be seen as part of a wider approach to wellness that includes a balanced diet, regular exercise, good hydration, and protection from sun damage. Together, these habits create the right environment for collagen to do its job effectively.

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