Collagen: Types, Benefits and How to Use It
Collagen is the most abundant protein in the human body, providing structure to skin, bones, joints, tendons and connective tissues. There are five main types, with Type I supporting skin and bones, Type II supporting cartilage and joints, and Type III supporting skin elasticity and blood vessels. Collagen production declines from your mid-20s, leading to wrinkles, joint stiffness and weaker bones. Supplementing with hydrolysed collagen, bone broth or collagen-rich foods can help restore levels.
Collagen has become one of the most talked-about supplements in health and beauty, and for good reason. This essential protein is responsible for keeping your skin firm, your joints flexible and your bones strong. Understanding how collagen works and how to maintain healthy levels can help you look and feel your best at any age.
This guide explains what collagen is, the different types and their functions, the benefits of supplementation, and the most effective ways to incorporate collagen into your daily routine.
What Is Collagen?
Collagen is the most abundant protein in mammals, making up approximately one-third of the total protein in the human body. It is found throughout your connective tissues, including skin, tendons, ligaments, cartilage and bones, where it provides structural support and strength.
In the skin, collagen maintains elasticity, firmness and hydration. It keeps skin smooth and helps it regenerate. When collagen levels drop, skin becomes dry, loses elasticity and develops wrinkles and fine lines. This is why collagen is central to anti-ageing skincare.
Beyond skin health, collagen is essential for joints and bones. It forms the framework for bone tissue and maintains the integrity of cartilage, the protective cushioning between joints. Reduced collagen contributes to joint pain, stiffness and conditions like osteoarthritis.
Collagen also supports muscle health. It contains glycine, an amino acid involved in creatine synthesis, which helps fuel muscle contractions. This makes collagen beneficial for maintaining muscle mass, particularly as you age.
Structurally, collagen is composed of amino acids including glycine, proline and hydroxyproline. These form long chains that twist into a triple-helix structure, giving collagen its remarkable strength and stability.
The Five Types of Collagen
Your body contains at least 28 different types of collagen, but five are most relevant to health and supplementation.
Type I Collagen
Type I is the most abundant, accounting for around 90% of your body's collagen. It provides structure to skin, bones, tendons, ligaments, teeth and connective tissues. Type I collagen is densely packed and gives tissues their tensile strength.
Best for: Skin health, anti-ageing, bone density, wound healing.
Type II Collagen
Type II is found primarily in cartilage, the flexible tissue that cushions joints. It is less densely packed than Type I, which allows it to absorb shock and provide flexibility.
Best for: Joint health, mobility, osteoarthritis support.
Type III Collagen
Type III often works alongside Type I and is found in skin, blood vessels, and internal organs. It supports skin elasticity and the structural integrity of hollow organs and arteries.
Best for: Skin elasticity, cardiovascular health, gut lining support.
Type IV Collagen
Type IV forms the basal lamina, a layer of the extracellular matrix that supports epithelial cells. It plays a crucial role in filtration and is found in the skin, kidneys and other organs.
Best for: Skin barrier function, organ tissue health.
Type V Collagen
Type V supports cell surfaces and hair follicles. It is essential for the formation of cell membranes and contributes to hair structure and growth.
Best for: Hair health, cell membrane integrity.
Benefits of Collagen Supplementation
Research and clinical experience support several key benefits of collagen supplementation.
Improves Skin Health
Collagen is fundamental to skin structure. Supplementation can reduce wrinkles, improve skin elasticity and increase hydration. Studies show that regular intake of hydrolysed collagen peptides stimulates the body's own collagen production, helping to slow visible signs of ageing.
Supports Joint Health
Collagen maintains cartilage and helps protect joints from wear and tear. Supplementation can reduce inflammation, ease joint pain and improve symptoms of osteoarthritis. Type II collagen is particularly beneficial for joint support.
Strengthens Bones
Collagen provides the structural framework for bones. As collagen declines with age, bone density can decrease, increasing the risk of fractures. Collagen supplementation may help maintain bone mineral density and support overall skeletal health.
Boosts Muscle Mass
Collagen contains glycine, which supports creatine synthesis and muscle tissue repair. Supplementing with collagen, combined with resistance training, may help preserve and build lean muscle mass.
Promotes Heart Health
Collagen provides structure to arteries. Without adequate collagen, blood vessels may become stiff and fragile, potentially increasing cardiovascular risk. Some research suggests collagen supplementation may support arterial flexibility and heart health.
Strengthens Hair and Nails
Collagen supports hair follicles and nail beds. Supplementation can improve hair thickness, reduce brittleness and promote stronger, healthier nails.
What Causes Collagen Loss?
Understanding what depletes collagen helps you take preventive action.
Ageing
Collagen production naturally slows from your mid-20s and declines more rapidly after 30. Existing collagen also begins to break down, leading to wrinkles, sagging skin and joint discomfort.
Sun Exposure
Ultraviolet rays penetrate the skin and damage collagen fibres, accelerating breakdown. Excessive sun exposure causes premature ageing and increases skin cancer risk. Daily sun protection is essential.
Hormonal Changes
Oestrogen supports collagen production. During menopause, declining oestrogen levels lead to significant collagen loss, affecting skin thickness, elasticity and joint health. Pregnancy can also temporarily affect collagen levels.
Oxidative Stress
Free radicals generated by metabolic processes, smoking and poor diet damage collagen fibres. Antioxidant-rich foods and avoiding smoking help protect collagen from oxidative damage.
Nutritional Deficiencies
Vitamin C is essential for collagen synthesis. Deficiency impairs the body's ability to produce collagen, leading to weakened connective tissues. Adequate protein intake also supports collagen production.
Genetic Conditions
Certain genetic disorders affect collagen production. Osteogenesis imperfecta causes brittle bones, whilst Ehlers-Danlos syndrome affects connective tissue strength, leading to hypermobile joints and fragile skin.
How to Take Collagen
Several methods can help you boost collagen levels effectively.
Collagen Supplements
Supplements are the most popular and convenient option. They come in powders, capsules and liquid forms.
Hydrolysed collagen (collagen peptides) is broken down into smaller molecules for easier absorption. It dissolves readily in hot or cold liquids and is ideal for adding to coffee, smoothies or water.
Gelatin is a cooked form of collagen used in cooking and some supplements. It only dissolves in hot liquids and sets when cooled.
Explore Wellness Tree's collagen supplement range to find the right product for your needs.
Bone Broth
Bone broth is made by simmering animal bones and connective tissues for extended periods. This process extracts collagen along with amino acids, minerals and other nutrients. Bone broth is a natural, whole-food source of collagen.
Browse our bone broth products.
Collagen-Rich Foods
Certain foods provide collagen directly or support your body's collagen production:
- Chicken contains connective tissues rich in collagen
- Fish and shellfish provide marine collagen from skin and scales
- Egg whites are high in proline, an amino acid needed for collagen synthesis
- Citrus fruits are rich in vitamin C, which is essential for collagen production
- Berries provide antioxidants that protect existing collagen
- Leafy greens contain chlorophyll, which may support collagen production
Topical Products
Collagen-infused creams, serums and lotions can improve skin hydration and elasticity when applied directly. However, topical collagen molecules are often too large to penetrate deeply. Products containing collagen peptides or ingredients that stimulate collagen production tend to be more effective.
Who Benefits Most from Collagen?
Collagen supplementation is particularly beneficial for:
- Adults over 30 experiencing early signs of ageing
- People with joint pain or stiffness
- Those recovering from injury or surgery
- Athletes and active individuals want to support muscles and joints
- Anyone with brittle nails or thinning hair
- Postmenopausal women experiencing accelerated collagen loss
Collagen is generally safe for most people. However, if you have allergies to fish, shellfish or eggs, check the source of your collagen supplement. Those who are pregnant, breastfeeding or have pre-existing health conditions should consult a healthcare provider before starting supplementation.
Collagen for Vegetarians and Vegans
Traditional collagen supplements are derived from animal sources (bovine, marine or chicken) and are not suitable for vegetarians or vegans.
However, plant-based collagen boosters can support your body's natural collagen production. These typically contain vitamin C, silica, zinc and amino acids like proline and glycine from plant sources. Whilst they do not provide collagen directly, they give your body the building blocks it needs.
How Long Does It Take to See Results?
Results vary depending on the individual, the type of collagen and the specific benefit you are seeking. Most people notice improvements within 4 to 8 weeks of consistent daily use.
Skin benefits such as improved hydration and reduced fine lines often appear first. Joint benefits may take longer, typically 8 to 12 weeks of regular supplementation.
Consistency is key. Taking collagen daily yields better results than sporadic use.
When to Take Collagen
Collagen can be taken at any time of day. Some people prefer taking it in the morning with coffee or a smoothie to start their day. Others take it at night, as the body does much of its repair work during sleep.
The most important factor is consistency. Choose a time that fits your routine and stick with it.
Helpful Resources
For further reading on collagen, consult these trusted sources:
Final Thoughts
Collagen is fundamental to healthy skin, strong joints, resilient bones and overall vitality. As natural production declines with age, supplementation offers an effective way to maintain collagen levels and support your body's structure and function.
Whether you choose hydrolysed collagen powder, bone broth or collagen-rich foods, consistency is key to experiencing the full benefits. Combine supplementation with sun protection, a nutrient-rich diet and a healthy lifestyle for optimal results.
Explore Wellness Tree's full range of collagen products and start your journey to healthier skin, joints and hair today.
Frequently Asked Questions
What is the best type of collagen to take? It depends on your goals. Type I and III are best for skin, hair and nails. Type II is best for joint health. Many supplements combine multiple types for comprehensive benefits.
Is collagen safe to take every day? Yes, collagen is generally safe for daily use. It is a natural protein found in the body. Follow the dosage instructions on your chosen product and consult a healthcare provider if you have concerns.
Can collagen help with weight loss? Collagen is a protein that can help you feel fuller for longer. It may support lean muscle mass when combined with exercise, which can aid metabolism. However, collagen is not a weight loss supplement on its own.
Does collagen really work for wrinkles? Research supports that hydrolysed collagen peptides can improve skin elasticity, hydration and reduce the appearance of fine lines and wrinkles with consistent use over several weeks.
What is the difference between collagen and collagen peptides? Collagen peptides are hydrolysed collagen, meaning the protein has been broken down into smaller molecules for better absorption. They are easier for the body to use compared to whole collagen.
Can I take collagen with other supplements? Yes, collagen can generally be taken alongside other supplements. Taking it with vitamin C can enhance absorption and support collagen synthesis.
