What role does collagen play in skin aging?

True beauty comes from within—that’s so easy to say when you’re standing in front of the mirror and have just spotted a new wrinkle. Everyone wants to grow old, but no one wants to be old. The aging process spares no one, and it’s no surprise that there’s a lot of research being done on health and anti-aging.

Sun, smoking, and stress accelerate skin aging

The sun causes our skin to age faster and can even damage it if we don’t protect ourselves adequately. We all know that by now. That’s why we apply sunscreen regularly and avoid the sun between 11 a.m. and 3 p.m. We sit in the shade and wear long-sleeved shirts, sometimes even when swimming.

As we age, collagen production decreases, altering the appearance of our skin. However, how quickly the aging process progresses depends on various factors. These include how many hours of direct sunlight a person has been exposed to over the course of their life. This is because the sun’s UVA rays cause the collagen in the skin to break down prematurely. The elastic and moisture-retaining fibers deteriorate more quickly, and the skin loses its elasticity, thickness, and moisture. Researchers estimate that about 80% of the signs of aging on the face are caused by sunlight.

But there are other factors that accelerate premature skin aging: smoking, alcohol, and stress. These factors produce free radicals. If these free radicals are not neutralized, they lead to oxidative stress. This, in turn, damages the cells and accelerates skin aging. An unhealthy diet that does not meet the body’s nutritional needs can also play a role. If we eat too few foods rich in essential nutrients, the body lacks important antioxidants. These neutralize free radicals and reduce oxidative stress.

It is now believed that traffic-related air pollution also causes the skin to age prematurely. However, the exact mechanisms behind this are not yet fully understood.

What happens during skin aging?

At age 20, the skin is still thick and elastic, and collagen production is still robust and functioning well. The skin is well supplied with blood and can store ample moisture. As we age, the body’s regenerative processes slow down—including those of the skin. As a result, collagen production also declines. The result is skin that becomes thinner, drier, and less elastic. Wrinkles form, and the connective tissue becomes lax. For women, menopause also sets in around age 50. The hormonal changes—particularly the decline in estrogen levels—further accelerate the natural aging process of the skin.

What is collagen?

Collagen is not only important in the skin. It is also found in bones, ligaments, tendons, and connective tissue. It provides support, elasticity, and structure. The respective tissue cells produce their own specific type of collagen and therefore differ slightly from one another. There are about 28 different types of collagen in the body. Because collagen is a component of so many different parts of the body, it is one of the most abundant proteins in the human body. That’s right—chemically speaking, collagen is a protein. Proteins consist of many small building blocks—amino acids.

What does the body need to produce collagen?

To produce collagen, the body needs amino acids (especially proline and glycine). The body obtains these from protein-rich foods. These include, for example, eggs, tofu, legumes, cheese, and meat. The protein from these foods is first broken down in the body into its individual components (the amino acids) and then reassembled. In this way, the body uses the amino acids to build the proteins (e.g., collagen) it needs. The body requires vitamin C for this process.

Is there anything you can do about sagging connective tissue and wrinkled skin?

You can’t change your skin type or color—nor can you change the number of hours you’ve already spent in the sun. That’s why the key is to look ahead and take a close look at your own lifestyle. Avoid stress. If it does get the better of you, use a relaxation technique that works for you—such as breathing exercises, yoga, or mindfulness practices. Exercise in the fresh air (but not in direct sunlight) has also been shown to reduce stress.

Pay attention to your diet. Make sure it’s balanced and rich in essential nutrients, and choose foods that are as fresh as possible. Eat plenty of vegetables and fruits, opt for whole grains over white flour, drink enough water, and include protein-rich foods. You should be moderate with alcohol and, if at all possible, quit smoking entirely. A balanced diet provides the body with sufficient nutrients, such as vitamins and minerals. Vitamins C and E act as antioxidants and protect the skin from free radicals. Vitamin C also plays a role in collagen production.

Anti-Aging Tips:

• Use sunscreen
• Don’t smoke; drink little or no alcohol
• Eat a balanced diet; vitamins C and E are particularly important for healthy skin
• During periods of stress, with an unhealthy diet, or for smokers, a suitable dietary supplement is recommended
• Thoroughly cleanse your skin in the evening
• Avoid stress and use specific relaxation techniques
• Exercise outdoors
• Drink enough water—1–2 liters per day

It’s not always possible to avoid stress or quit smoking so easily. It’s precisely in such situations that dietary supplements containing essential nutrients can help. They make it easier to cope and benefit both your health and your skin.

In this sense, the saying “True beauty comes from within” rings true in two ways: On the one hand, it’s wise to accept the aging process as a natural part of life. On the other hand, you can influence how slowly your skin ages through what you eat and how you live your life.

Are collagen peptides and collagen hydrolysate the same thing?

Yes! Collagen is processed through hydrolysis (the breakdown of a chemical compound through a reaction with water), which makes it easier for the body to absorb.

Collagen peptides and collagen hydrolysate both describe the same end result of this process.