Collagen is the most abundant protein in the body, providing structure and support to the skin, bones, joints, muscles and connective tissues. As we age, our natural collagen production gradually declines, which is why collagen supplements have become increasingly popular.
Marine collagen is one of the most widely used forms of collagen, valued for its high bioavailability and sustainably sourced ingredients. Derived from fish, marine collagen is commonly chosen by those looking to support their overall wellness routine.
In this guide, we'll explain what marine collagen is, how it differs from other types of collagen, its potential benefits and how to choose a high-quality supplement.
What Is Marine Collagen?
Marine collagen is a protein extracted from the skin, scales and bones of fish. Most marine collagen supplements contain Type I collagen, the most abundant type of collagen found naturally in the human body. Type I collagen is present in the skin, bones, tendons and connective tissues. ¹
Many supplements contain hydrolysed marine collagen, also known as collagen peptides. These peptides have been broken down into smaller amino acid chains, making them easier for the body to digest and absorb.
Marine collagen supplements are available in capsules, powders and liquids, making them easy to incorporate into a daily routine.
Why Does Collagen Decline with Age?
From our mid-20s onwards, the body's natural collagen production begins to slow.
Several lifestyle factors can also contribute to collagen loss, including:
-
Ageing
-
Sun exposure
-
Smoking
-
Poor diet
-
Environmental pollution
As collagen levels decrease over time, many people choose collagen supplements as part of a balanced approach to healthy ageing.
Marine Collagen Benefits for Skin
Healthy skin naturally contains large amounts of collagen, which helps provide structure and elasticity. Research continues to investigate the role of collagen supplementation in supporting skin health, hydration and elasticity. ²
Many people choose marine collagen supplements as part of their daily beauty and skincare routine alongside healthy nutrition and sun protection.
Marine Collagen and Joint Health
Collagen is an important structural component of cartilage and connective tissue. Research is ongoing into the role collagen peptides may play in supporting joint comfort and mobility, particularly among active individuals and older adults. ³
Many people include marine collagen in their wellness routine to support an active lifestyle and healthy movement.
Marine Collagen for Bones and Connective Tissue
Collagen provides structural support throughout the body, including within bones, ligaments and tendons. Maintaining healthy bones depends on many factors, including regular weight-bearing exercise, adequate calcium, vitamin D and overall nutrition.
Marine collagen is often chosen alongside these healthy lifestyle habits as part of a comprehensive approach to musculoskeletal wellbeing.
Marine Collagen for Hair and Nails
Although research is still developing, marine collagen is frequently included in beauty supplements focused on supporting healthy hair and nails. Because collagen provides important amino acids used throughout the body, many people include it as part of a wider beauty-from-within routine.
A balanced diet rich in protein, vitamins and minerals remains essential for maintaining healthy hair and nails.
Marine Collagen vs Bovine Collagen
Marine collagen and bovine collagen are the two most common forms of collagen supplements.
Marine Collagen
-
Primarily contains Type I collagen.
-
Derived from fish.
-
Popular for skin-focused supplements.
-
Often sustainably sourced from the fishing industry.
Bovine Collagen
-
Contains both Type I and Type III collagen.
-
Derived from cattle.
-
Commonly used in joint and general collagen supplements.
Both forms provide collagen peptides, and the best choice often depends on dietary preferences and personal wellness goals.
Who May Benefit from Marine Collagen?
Marine collagen supplements are commonly chosen by:
Adults Looking to Support Healthy Ageing
Natural collagen production decreases with age, making supplementation increasingly popular.
Individuals Interested in Skin Health
Many people include marine collagen in their beauty and skincare routines.
Active Individuals
People with physically active lifestyles often choose collagen supplements alongside balanced nutrition to support overall musculoskeletal health.
Those Looking to Increase Protein Intake
Collagen peptides provide a convenient source of protein that can easily be added to a daily routine.
Is Marine Collagen Safe?
Marine collagen is generally considered safe for most healthy adults when taken as directed. Because it is derived from fish, marine collagen supplements are not suitable for people with fish allergies.
If you are pregnant, breastfeeding, taking medication or managing a medical condition, seek advice from a healthcare professional before beginning supplementation.
How to Choose a High-Quality Marine Collagen Supplement
When selecting a marine collagen supplement, consider:
-
Hydrolysed collagen peptides
-
Clearly labelled collagen content
-
Sustainable sourcing
-
Third-party quality testing
-
Transparent ingredient lists
-
Reputable manufacturers
High-quality products provide consistency and confidence in your daily routine.
Lifestyle Habits That Complement Marine Collagen
Supplements work best alongside healthy daily habits.
To support your overall wellbeing:
-
Eat a balanced, protein-rich diet.
-
Include vitamin C-rich foods, as vitamin C contributes to normal collagen formation. ⁴
-
Stay hydrated.
-
Exercise regularly.
-
Protect your skin from excessive sun exposure.
-
Avoid smoking.
Marine collagen should be viewed as part of a wider healthy lifestyle rather than a replacement for good nutrition.
Why Marine Collagen Has Become So Popular
Marine collagen has become one of the most sought-after wellness supplements thanks to its high bioavailability, convenient formats and naturally occurring Type I collagen.
Whether you're looking to support healthy ageing, complement your skincare routine or maintain an active lifestyle, marine collagen can form part of a balanced approach to everyday wellbeing.
Choosing a high-quality marine collagen supplement and combining it with healthy lifestyle habits can help support your long-term wellness goals.
FAQ’s
What is marine collagen?
Marine collagen is a protein derived from fish that is rich in Type I collagen and commonly available as hydrolysed collagen peptides.
Is marine collagen better than bovine collagen?
Neither is necessarily better. Marine collagen primarily contains Type I collagen and is popular for skin-focused supplements, while bovine collagen provides both Type I and Type III collagen.
Can I take marine collagen every day?
Yes. Marine collagen supplements are commonly designed for daily use. Always follow the dosage instructions on the product label.
How long does marine collagen take to work?
Research studies investigating collagen peptides typically assess results after several weeks or months of consistent use. Individual experiences may vary.
What should I take with marine collagen?
Vitamin C contributes to normal collagen formation for the normal function of skin, cartilage, bones and blood vessels, making it a popular nutrient to include alongside collagen. ⁴
