Hydrolyzed Collagen vs Marine Collagen Peptides
Marine collagen peptides vs hydrolysed collagen: what is the difference?
If you have been researching marine collagen supplements, you have almost certainly encountered both terms: marine collagen peptides and hydrolysed collagen. They appear on different products, in different articles and from different brands, which can make the whole category feel more complicated than it actually is.
Here is the simple truth: marine collagen peptides and hydrolysed marine collagen are different names for the same thing. One describes the end product, the other describes the process used to create it. Understanding this distinction will help you make a much more informed choice when selecting a collagen supplement.
Why there are two names for the same thing
The phrase "collagen peptides" describes what the supplement actually contains: short chains of amino acids derived from collagen protein. The phrase "hydrolysed collagen" describes the process by which those peptides are created: hydrolysis, the breaking down of larger molecules using water and enzymes.
A simple analogy: wheat flour and ground wheat are two names for the same product. One describes what it is, the other describes how it was made. Marine collagen peptides and hydrolysed marine collagen work the same way.
When the source of the collagen is fish, the product is called marine collagen peptides or hydrolysed marine collagen. When the source is cattle, it is called bovine collagen peptides or hydrolysed bovine collagen. The naming convention follows the source, not any meaningful difference in the end product between brands using the same terminology.
What is collagen and why does hydrolysis matter?
Collagen is the most abundant protein in the human body, making up approximately 30% of total protein. It provides the structural framework for skin, tendons, ligaments, cartilage, bones and connective tissue throughout the body. It is, in the most literal sense, what holds the body together.
From around the age of 25, collagen production begins to decline at approximately 1% per year. In women, this decline accelerates significantly during perimenopause and menopause. The consequences include reduced skin elasticity, hair thinning, brittle nails, joint stiffness and slower recovery from physical activity.
The challenge with supplementing collagen is that native collagen molecules are extremely large - far too large to pass through the intestinal wall and enter the bloodstream intact. If you simply consumed raw collagen, your digestive system would break it down, but you would lose the specific bioactive properties that make collagen supplements effective.
How the hydrolysis process works
Step 1 — Extraction
Collagen is extracted from fish skin and scales using a controlled process. For Naticol® marine collagen, this uses enzymatic extraction with no harsh chemicals, preserving the purity and structural integrity of the collagen.
Step 2 — Hydrolysis
Hydrolysed collagen is prepared by breaking down large native collagen proteins into smaller peptides, which are easier for the body to absorb.
Step 3 — Purification
The resulting peptide solution is purified to remove any remaining non-collagenous material, ensuring the final product has a consistent, high-purity peptide profile.
Step 4 — Quality control
Every batch is tested for consistency, purity and the absence of contaminants. Kollo uses Naticol® marine collagen peptides, which are Informed Choice certified and tested for over 250 potentially harmful substances before being released to market.
Why the quality of the source matters
Not all hydrolysed collagen is equal. The source of the collagen and the hydrolysis process used directly affect how well your body can absorb and use it.
Marine collagen is a source of hydrolysed collagen peptides that are readily digested and absorbed. Within marine collagen, patented and clinically studied ingredients like Naticol® represent the gold standard, with their own peer-reviewed research demonstrating effectiveness. It is available in various formats - liquid marine collagen and powder form.
What happens when hydrolysed marine collagen peptides enter the body?
Once hydrolysed marine collagen peptides enter the bloodstream, research suggests they may act as bioactive signals that support collagen synthesis rather than simply providing amino acid building blocks. This is why the dose matters so much. Clinical research consistently uses 5,000 to 10,000mg of hydrolysed collagen peptides per day to produce measurable results. Products delivering far less than this, which is the majority of supplements on the UK market, cannot produce the biological response demonstrated in research.
Joint health
Multiple clinical studies have demonstrated reductions in joint pain and improvements in mobility with consistent daily supplementation of hydrolysed collagen peptides. Additional research continues to explore collagen's role in joint support. For more targeted joint pain relief alongside collagen, Kollo Flex+ combines AprèsFlex® Boswellia and Univestin® for fast-acting anti-inflammatory support.
Skin elasticity and hydration
Many good quality studies support that hydrolysed collagen peptides improve skin elasticity, moisture retention and reduce the appearance of fine lines within 8 to 12 weeks of consistent supplementation at the full clinical dose. Systematic reviews confirm the evidence for skin benefits.
Hair and nail strength
Clinical research supports that collagen peptides contribute to hair and nail health. Nail growth rate and resilience improvements are frequently among the earliest changes people notice with consistent supplementation.
Bone density
Bone is approximately 35% collagen by weight. The collagen matrix provides the organic scaffold onto which calcium and phosphate minerals are deposited. Emerging research suggests collagen peptide supplementation may support bone health and bone mineral density, particularly in postmenopausal women.
Exercise recovery
Tendons and ligaments are approximately 60 to 85% collagen. Research has demonstrated that taking hydrolysed collagen peptides 30 to 60 minutes before exercise may support connective tissue recovery. This makes timing of collagen supplementation particularly relevant for athletes and active individuals.
The bottom line
Marine collagen peptides and hydrolysed marine collagen are the same product described from two different angles. What matters is not the name on the label but the quality of the ingredient, the dose and the transparency of the brand about sourcing and production.
Kollo delivers 10,000mg of Naticol® hydrolysed marine collagen peptides in every daily sachet. Naticol® is produced through a clean enzymatic hydrolysis process, sourced from sustainably certified fisheries and tested for purity before every batch goes to market. You can read more about the full benefits in our complete guide to liquid marine collagen.
For women looking to build a complete supplement routine, our guide to the best supplements for women over 40 explains how hydrolysed marine collagen fits alongside menopause support, creatine and electrolytes in a full daily stack.
Any questions about Kollo or collagen supplementation can be directed to our team via the Contact page, or explore the clinical studies behind our products on the website.
Kollo Health was co-founded by Jenni Falconer - TV presenter, Smooth Radio breakfast host, ten-time London Marathon runner and host of the RunPod podcast. Read her story and why she created Kollo.
