Doctor Warns Collagen Supplements May Not Be the Skin Miracle Millions Expect

Collagen supplements have become one of the biggest trends in the beauty and wellness world, with powders, capsules, drinks and gummies promising smoother, firmer and younger-looking skin. But before adding an expensive collagen product to your daily routine, experts say it is worth taking a closer look at what the science actually shows.

A recent review of clinical research has raised questions about how confidently collagen supplements can be promoted as an answer to wrinkles and skin ageing. While some studies have reported improvements in skin hydration, elasticity and the appearance of wrinkles, researchers say the overall evidence is not strong enough to describe collagen supplements as a proven treatment for ageing skin.

Are collagen supplements really effective for skin?

Collagen is an important protein found throughout the body. In the skin, it helps provide structure, strength and elasticity. As people age, natural collagen production gradually declines, contributing to changes such as fine lines, wrinkles and reduced firmness.

This has helped fuel the popularity of collagen supplements. The idea sounds straightforward: if collagen levels fall with age, consuming more collagen should theoretically help replace what has been lost.

However, the process is more complicated.

When collagen is consumed in food or supplements, the digestive system breaks it down into amino acids and smaller peptides. The body can then use these components in different ways. It does not simply transport the collagen from a drink or powder directly to the skin.

Some research suggests particular collagen peptides may have biological effects that could influence skin health. However, this does not mean that every collagen supplement will produce visible improvements in wrinkles or firmness.

Dermatologist Dr Conal Perrett, cited in the original report, has warned consumers against treating collagen as a guaranteed route to younger-looking skin. His comments highlight an important distinction between collagen being essential to healthy skin and collagen supplements being clinically proven to reverse skin ageing.

What does the research say about collagen and wrinkles?

A 2025 systematic review and meta-analysis examined 23 randomised controlled trials involving 1,474 participants. When all of the studies were considered together, collagen supplementation appeared to be associated with improvements in skin hydration, elasticity and wrinkles.

However, the findings became less convincing when researchers looked specifically at studies considered to be of higher quality.

The review found no significant benefits in higher-quality studies or in research that did not receive pharmaceutical industry funding. The authors therefore concluded that there is currently insufficient clinical evidence to support the use of collagen supplements for preventing or treating skin ageing.

This does not necessarily mean that collagen supplements are useless. Instead, it means consumers should be cautious about strong marketing claims.

There is an important difference between saying a supplement may have potential benefits and saying that it is a proven anti-ageing treatment.

Why nutrition matters for natural collagen production

Rather than focusing exclusively on collagen supplements, skin experts recommend paying attention to the nutrients the body needs to produce and maintain collagen naturally.

Vitamin C is particularly important because it plays a role in normal collagen production. Fortunately, it can be obtained from a wide range of everyday foods.

Good sources include peppers, citrus fruits, berries, broccoli and tomatoes. Including a mixture of fruit and vegetables in your diet can help provide vitamin C alongside other nutrients that support overall health.

Protein is also important. Since collagen is a protein, the body requires amino acids to make proteins and maintain tissues.

Foods such as eggs, fish, meat, dairy products, beans and lentils can contribute to overall protein intake. A varied diet is generally more useful than concentrating on one so-called miracle food.

Five simple ways to support healthy skin

1. Eat a balanced diet

A varied diet containing vegetables, fruit, whole grains and suitable sources of protein provides the nutrients your body needs for normal maintenance and repair.

Rather than relying on one food or supplement, aim for variety across your meals.

2. Include vitamin C-rich foods

Vitamin C supports normal collagen production. Peppers, oranges, berries, broccoli and tomatoes are among the foods that can help you obtain this important nutrient.

For most people, getting nutrients from a varied diet is preferable to assuming a beauty supplement is necessary.

3. Get enough protein

Protein supplies amino acids that the body uses to build and maintain proteins, including collagen.

Eggs, fish, dairy products, beans, lentils and meat can all form part of a balanced diet, depending on your dietary preferences.

4. Treat supplements as optional

Collagen supplements should not be viewed as a shortcut to younger-looking skin.

If someone chooses to take collagen, it is sensible to have realistic expectations and understand that research remains mixed. The cost of a supplement should also be considered, particularly when evidence for a significant anti-ageing effect remains uncertain.

5. Protect your skin from the sun

Sun protection is one of the most important considerations when it comes to premature skin ageing.

Repeated ultraviolet exposure can damage skin structures and contribute to changes including wrinkles, pigmentation and loss of elasticity. Using a broad-spectrum sunscreen and taking sensible steps to limit excessive UV exposure can help protect the skin.

This is especially important for areas that receive frequent sun exposure, including the face, neck and hands.

Is collagen a waste of money?

The answer is not necessarily.

There is research suggesting that certain collagen products may have beneficial effects on aspects of skin health. However, the evidence is not consistent enough to support the idea that everyone needs collagen supplements or that they can reverse the natural ageing process.

Consumers should therefore be wary of products that make dramatic promises about removing wrinkles, restoring youthful skin or replacing the collagen lost through ageing.

The most sensible approach is to view collagen as an optional wellness product rather than an essential part of a skincare routine.

For people looking to support healthy skin, the fundamentals remain important: a varied and nutritious diet, adequate protein, vitamin C-rich foods, sensible lifestyle choices and consistent protection from ultraviolet radiation.

The bottom line on collagen for skin

Collagen is undeniably important for skin structure, but that does not automatically mean taking a collagen supplement will make skin look younger.

Current research presents a mixed picture. Some clinical studies have reported improvements in hydration, elasticity and wrinkles, while higher-quality evidence has failed to demonstrate the same clear benefits.

For anyone considering collagen supplements for skin ageing, realistic expectations are key. Rather than relying on a single product marketed as a miracle solution, it may be more beneficial to concentrate on the basic habits that support skin health over time.

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Source: Daily Mirror reportm published 15 August 2026.

Disclaimer: This article is for general information and educational purposes only. It is not medical advice and should not be used as a substitute for advice from a qualified doctor, dermatologist, pharmacist or other healthcare professional. Research into collagen supplements is ongoing, and individual results may vary. Anyone with concerns about their skin, diet, supplements or existing health conditions should seek personalised professional advice before making changes to their routine.