The Science Behind Collagen for Skin, Hair & Joints

How Collagen Supports Skin, Hair and Joints

Collagen wellness and healthy ageing

Collagen has become one of the most talked-about supplements in the wellness world, but beyond the hype, what does the science actually say about its role?

Understanding how collagen works within the body can help explain why collagen supplements are increasingly used to support skin health, hair strength, connective tissues and joint function.

Research into hydrolysed collagen peptides continues to grow, with studies exploring collagen’s role in skin elasticity, hydration, joint support and healthy ageing (Zague, 2008).

This blog will look into the science behind collagen, how collagen peptides work and why collagen has become such a popular addition to daily wellness routines.

What Is Collagen?

Collagen is the most abundant protein in the human body, accounting for approximately 30% of the body’s total protein content (Ricard-Blum, 2011).

It acts as a major structural component within connective tissues, including:

  • Skin
  • Tendons
  • Ligaments
  • Bones
  • Cartilage
  • Blood vessels
  • Muscles

Collagen helps provide strength, structure and support throughout the body.

There are at least 28 recognised types of collagen, but the main collagen types associated with supplementation are:

Collagen Type Commonly Found In Commonly Associated With
Type I Skin, bones, tendons Skin structure and connective tissue support
Type II Cartilage Joint and cartilage support
Type III Skin, blood vessels, muscles Skin elasticity and tissue structure

Our collagen contains hydrolysed bovine collagen peptides, which are naturally rich in Type I and Type III collagen.

Why Does Collagen Decline With Age?

Collagen decline and ageing

From our mid-20s onwards, natural collagen production gradually begins to decline (Varani et al., 2006).

Lifestyle and environmental factors may also contribute to collagen breakdown over time, including:

  • UV exposure
  • Smoking
  • Stress
  • Poor sleep
  • Menopause
  • Poor nutrition

As collagen levels decrease, structural changes within the skin and connective tissues may become more noticeable.

Common signs associated with collagen decline may include:

  • Reduced skin elasticity
  • The appearance of fine lines and wrinkles
  • Changes in hair thickness
  • Brittle nails
  • Increased joint stiffness
  • Reduced recovery after exercise

This is one reason many people choose to include collagen as part of their daily wellness routine.

Collagen and Skin Health

Collagen for skin health

Collagen plays an important role in maintaining skin structure, elasticity and hydration (Shoulders & Raines, 2009).

As collagen production declines with age, skin can become thinner, less elastic and less hydrated over time.

Research suggests hydrolysed collagen peptides are absorbed through the digestive system and may help stimulate fibroblasts, the cells responsible for collagen production within the skin (Ohara et al., 2007).

Clinical studies have suggested that consistent collagen supplementation may help support:

  • Skin elasticity
  • Skin hydration
  • Skin smoothness
  • The appearance of fine lines and wrinkles over time (Proksch et al., 2014)

These effects are thought to occur through both:

  • Providing amino acids needed for collagen formation
  • Supporting the body’s natural collagen synthesis processes

Collagen amino acids such as glycine, proline and hydroxyproline are especially important for maintaining collagen structure within the skin.

Collagen and Hair Strength

Although hair is primarily made from keratin, collagen provides amino acids such as proline, which are involved in keratin production (Almohanna et al., 2019).

Collagen may also help support the dermis layer of the skin, where hair follicles are rooted.

Some researchers suggest collagen may additionally help combat oxidative stress, which can affect hair follicles over time (Lephart, 2016).

Potential areas of support associated with collagen include:

  • Supporting hair structure
  • Supporting scalp health
  • Providing amino acids involved in keratin formation
  • Supporting overall hair appearance

While research into collagen specifically for hair continues to develop, collagen remains a popular supplement within beauty and wellness routines.

Collagen and Joint Support

Collagen and joint support

Collagen is a major structural component of cartilage, the connective tissue that cushions joints and supports movement (Mienaltowski & Birk, 2014).

As collagen levels decline with age and physical wear, cartilage structure may also change over time.

Studies exploring hydrolysed collagen supplementation have reported potential benefits relating to:

  • Joint comfort
  • Mobility
  • Exercise recovery
  • Supporting active lifestyles (Clark et al., 2008)

Some research also suggests collagen peptides may help support cartilage-building processes within the body (Bello & Oesser, 2006).

This is one reason collagen is often included within active lifestyle and healthy ageing routines.

Why Hydrolysed Collagen Matters

Hydrolysed collagen, also known as collagen peptides, has been broken down into smaller amino acid chains through a process called hydrolysis.

This process improves collagen’s solubility and allows it to mix easily into drinks and recipes.

Hydrolysed collagen peptides are also associated with improved bioavailability, meaning the peptides can be more easily absorbed and utilised by the body (Iwai et al., 2005).

Our collagen contains hydrolysed bovine collagen peptides designed for easy daily use.

What Are the Key Amino Acids in Collagen?

Collagen contains a unique amino acid profile that differs from many other protein sources.

Key amino acids found in our collagen include:

  • Glycine
  • Proline
  • Hydroxyproline
  • Alanine
  • Arginine
  • Glutamic acid

These amino acids are naturally associated with connective tissue structure throughout the body.

Glycine is particularly important because every third amino acid in collagen is glycine, helping create collagen’s triple-helix structure (Shoulders & Raines, 2009).

Consistency Is Key

One of the most important factors when taking collagen is consistency.

Because collagen works gradually by supporting the body’s natural structural processes, most studies investigating collagen supplementation typically observe findings after between 4–12 weeks of daily use (Choi et al., 2019).

Many people therefore choose to include collagen as part of their long-term wellness routine rather than expecting immediate results.

Why Choose Our Collagen?

Our collagen contains hydrolysed bovine collagen peptides, providing:

  • Type I and Type III collagen
  • A naturally rich amino acid profile
  • Hydrolysed collagen peptides for easy mixing
  • An unflavoured formula suitable for drinks and recipes
  • Everyday support as part of a balanced lifestyle

Our collagen can easily be added to coffee, smoothies, yoghurt, oats and protein shakes as part of your daily routine.

Shop Collagen

Collagen supplementation is not a quick fix, but research suggests collagen peptides may play a supportive role in skin, hair and joint health over time.

By providing important amino acids and supporting the body’s natural collagen processes, collagen offers a well-rounded approach to supporting structural tissues from within.

As with any supplement, consistency, quality and formulation matter. Choosing a high-quality, well-sourced collagen supplement can help support your overall wellness routine and healthy ageing goals.

References

  • Almohanna HM et al. The role of vitamins and minerals in hair loss. Dermatology and Therapy. 2019.
  • Bello AE, Oesser S. Collagen hydrolysate for the treatment of osteoarthritis and other joint disorders. Current Medical Research and Opinion. 2006.
  • Choi FD et al. Oral collagen supplementation: A systematic review of dermatological applications. Journal of Drugs in Dermatology. 2019.
  • Clark KL et al. 24-week study on the use of collagen hydrolysate as a dietary supplement in athletes with activity-related joint pain. Current Medical Research and Opinion. 2008.
  • Iwai K et al. Identification of food-derived collagen peptides in human blood after oral ingestion. Journal of Agricultural and Food Chemistry. 2005.
  • Lephart ED. Skin aging and oxidative stress. International Journal of Molecular Sciences. 2016.
  • Mienaltowski MJ, Birk DE. Structure, physiology, and biochemistry of collagens. Advances in Experimental Medicine and Biology. 2014.
  • Ohara H et al. Collagen-derived dipeptide absorption and skin fibroblast stimulation. Journal of Agricultural and Food Chemistry. 2007.
  • Proksch E et al. Oral supplementation of specific collagen peptides improves skin physiology. Skin Pharmacology and Physiology. 2014.
  • Ricard-Blum S. The collagen family. Cold Spring Harbor Perspectives in Biology. 2011.
  • Shoulders MD, Raines RT. Collagen structure and stability. Annual Review of Biochemistry. 2009.
  • Varani J et al. Decreased collagen production in chronologically aged skin. American Journal of Pathology. 2006.
  • Zague V. A new view concerning the effects of collagen hydrolysate intake on skin properties. Archives of Dermatological Research. 2008.
Daisy, Registered Associate Nutritionist

Daisy, MSc PGDip ANutr, is a Registered Associate Nutritionist with a Master's Degree in Public Health Nutrition, and a Post Graduate Diploma in Eating Disorders and Clinical Nutrition, both of which are Association for Nutrition (AFN) accredited. She, also, has a BSc degree in Psychology and Cognitive Neuroscience; and has completed an AFN accredited Diet Specialist Nutrition course.

These products are not intended to diagnose, treat, cure or prevent any disease. If you have a medical condition, or are pregnant or breastfeeding, we recommend consulting your healthcare professional before use.

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