October 07, 2025 9 min read
Many people feel confused about collagen supplements and which type works best for them. Both bovine collagen and marine collagen can help boost skin elasticity, joint health, and nail strength.
This guide will show clear facts about each choice so you pick what suits your body, needs, or diet. Which one wins the battle? Keep reading to find out.
Bovine collagen comes from cows, while marine collagen is made using fish skin and scales. Each type brings its own set of amino acids and helps the body in different ways—think of them as two tools in your health toolbox, each suited to certain jobs.
Fish collagen comes from leftover parts of cod and other fish, like scales, bones, and skin. “One man's fish guts is another man's secret to glowing skin!” Fish oil gets removed so there's no bad taste or smell.
Even sea urchin scraps have been turned into high-value collagen peptides for supplements.
Collagen from cows uses hides, bones, and connective tissue left after making beef. This piggybacks off beef production but needs more land and water than marine sources. Cow-based hydrolysed collagen floods the market thanks to easy mass production, driving down prices on pills or powders.
Marine options suit pescatarians or kosher diets but not strict vegetarians or vegans. Both aim to use what would be wasted—just different creatures doing the heavy lifting for your joint health or beauty from within routine.
Type I collagen is the star player found most in marine collagen peptides. It gives skin elasticity, making your face look firmer and younger. You also get stronger nails and healthier hair from Type I; it sits high on the list for beauty from within.
Bovine collagen offers more variety. It packs Types I, II, III, and even V in the mix. Type II shows up mainly in cartilage and supports joint health—great news if creaky knees ache after long walks or workouts.
Type III helps muscles and organs stay strong. Both marine sources like fish scales and bovine connective tissues bring these types to your table through supplements or bone broth.
Folks aiming for joint support might stick with bovine; fans of glowing skin often pick marine options rich in type I collagen.
Marine collagen stands out for its high bioavailability. Its peptides are smaller, so your body absorbs them faster than those from bovine collagen. Hydrolysed marine collagen, made from fish scales or fish skin, enters the bloodstream quickly after you take it in drinks or food.
Scientific studies show that marine collagen helps mesenchymal stem cells stick and form new tissue within 24 hours. This can give you quicker results if you aim to support skin health, nail strength, or hair growth.
Bovine collagen comes from cows and often contains different types of protein like type I and type III collagens. It moves through digestion at a slower pace but still offers good absorption when taken as hydrolysed collagen peptides.
Bovine sponges have shown more resistance to enzymes that break down proteins; this feature may help with long-lasting effects in joint health or bone density over time compared to fish collagen options.
Marine sources are also purer with less risk of disease transmission than animal-derived ones, though some find their taste a bit too “fishy” unless well-flavoured!
Fish collagen, especially from fish scales and skin, gives type I collagen peptides that can help boost your skin's bounce and glow. With its small jelly-like particles, this supplement mixes well in drinks—perfect if you're after beauty from within without the fuss of cooking bone broth or dealing with strong tastes.
Marine collagen is packed with type I collagen peptides, known for keeping skin firm and smooth. This source, often from fish scales or fish skin, helps boost your body's own collagen production.
Clinical trials show that daily marine collagen supplements like Revive Collagen Enhanced Plus can deliver 10,000mg of hydrolysed type I collagen in one serving. Many people have seen fewer wrinkles, stronger nails, and thicker hair thanks to marine collagen's amino acids.
Supplements such as Vida Glow Collagen Liquid Advanced add manuka honey for extra shine and hydration. Studies in 2023 showed less inflammation and quicker tissue repair after regular use of marine-derived products on wounds in sheep.
Marine options tend to work well for those wanting more skin elasticity while supporting nail bed strength at the same time. If you struggle with aged or brittle nails or thinning hair shafts, a quality marine peptide might help restore their natural bounce faster than most topical creams found on the high street shelves today.
Glycine, found in high levels in marine collagen from fish skin and fish scales, helps make digestion smoother. This amino acid supports a calm gut environment and may lower inflammation in the digestive tract.
People with sensitive stomachs or seafood allergies often prefer marine collagen over bovine collagen. Its high bioavailability means your body soaks up more nutrients quickly, like wringing out every last drop from a wet cloth.
Studies show that glycine might help improve sleep quality by helping you relax at night and keeping your body temperature steady as you rest. Some marine collagen supplements mix easy absorption with added vitamins and minerals to boost both gut health and restful sleep; handy if you want beauty from within without too much fuss.
“A healthy gut can lead to peaceful sleep,” says nutrition advisor Tim Goodwin.
Moving on, let's see how bovine collagen steps up for joint and bone support.
Many older adults who take cow collagen supplements say their knees feel less stiff. If you've ever wondered why athletes sip beef bone broth, it's often for the joint and connective tissue support you get from these handy protein building blocks.
Bovine collagen supplements help with joint health and bone strength. Rich in Collagen Type 2, they support cartilage. This keeps joints moving and flexible, like well-oiled hinges on a garden gate.
The amino acids glycine and proline aid muscle growth and repair after exercise or injury.
Athletes often prefer bovine collagen for this reason. Studies from M Khatri in 2021 show that hydrolysed collagen peptides from cows can reduce pain in people with joint issues. Bovine collagen helps lower the risk of fractures by boosting bone density, helping to fight problems such as osteoporosis as we age past thirty-five.
Even active adults or those just getting back into exercise notice less stiffness with regular use of these dietary supplements.
Most collagen supplements from cattle are easier on your wallet than those made from fish skin. The beef supply chain is huge, so companies can get more raw material for less money.
That means you pay less at checkout and can enjoy bigger servings, like Ancient + Brave True Collagen with 5,000mg in each scoop—without breaking the bank.
People often pick bovine collagen because it fits tight budgets in both the UK and abroad. Even with high daily dosages, the costs stay low compared to marine types. This cost advantage helps many stick to their routine long term or try higher serving sizes with little worry about price hikes over time.
Now, let's explore how science backs up the health benefits of hydrolysed collagen sourced from cattle.
Bovine collagen comes from cows, usually grass fed for better quality. It packs high levels of glycine, hydroxyproline, and proline. These amino acids help with wound healing, skin elasticity, and keeping connective tissue strong.
You get types I, II, III and even V in bovine collagen peptides; these proteins do heavy lifting for joint health and bone strength. Studies like the one by M Khatri in 2021 found people had less joint pain and moved better after taking bovine collagen supplements.
Research shows that bovine collagen absorbs well into your system. Bovine sponges resist enzyme breakdown more than others; they stretch further too (MN Egorikhina 2021). Hydrolysed collagen is easier to digest so you feel the benefits faster—think muscle repair after a tough gym session or helping bones recover from age-related wear.
Its higher glycine content supports gut health as well as sleep improvement without causing bloating like some protein powders can. Active folks see better recovery and fewer aches when using it with vitamin c to boost natural collagen production.
Choosing between bovine and marine collagen feels a bit like picking your favourite biscuit. Each kind brings something to the table. Fish-based collagen wins for quick absorption and skin support, especially if you skip beef.
Cow-sourced collagen shines for muscles, bone health, and joint care. Take a peek at your needs, allergies, or diet; then pick the one that fits best with your cup of tea. Always chat with your doctor before adding new supplements to your daily routine.
Bovine collagen comes from cows, while marine collagen is sourced from fish skin or scales. They contain different types of collagen; bovine has type I and III which are great for skin elasticity, bone health, and connective tissue. Marine collagen primarily contains type I which benefits hair, skin health, nail strength.
For joint health, you might want to consider bovine collagen as it provides type II peptides that support this area more effectively than the type I found in marine sources.
Yes indeed! Both bovine and marine collagens are hydrolysed into smaller peptides making them easier to absorb when taken as a supplement.
If you follow a vegetarian diet or have an allergy to fish then you may need to avoid marine-based supplements; on the flip side if you're allergic to beef products then steer clear of bovine-derived ones!
Vitamin C plays a key role in your body's natural production of collagen (known as synthesis). So having enough vitamin C alongside your chosen supplement could give your body an extra boost in creating its own supply.
Whilst not fat burners per se; both forms have been linked with promoting gut health which can indirectly aid weight management efforts.
Some people may show mild side effects when using collagen supplements. Mild digestive upset may occur. A few may have allergic reactions. Consult your doctor if you have known allergies. Follow the recommended dose and product instructions carefully. Stop use if discomfort happens and seek advice.
You can mix collagen peptides into drinks, bone broth or smoothies. Stir well until dissolved. Use them as part of a balanced diet. Combine with vitamin c to support collagen synthesis.
Lean Greens was founded in 2012 by Tim and Sam Goodwin. We started with a simple mission: help busy people eat more vegetables easily. Our company has grown from that initial idea to a trusted nutrition brand across the UK. We create supplements that support healthy habits.
Our first product was Super Greens powder. It set the standard for an easy, tasty greens drink. Since launching it, we have introduced products like Drift Off, Amber Boost, and Collagen Greens. Each product meets real-life needs: they are quick to use and taste great.
We formulate every product with straightforward nutrition in mind. Our items are not complex or time-consuming, and they do not taste like pond water! We have gained thousands of satisfied customers. Operating from our base in the UK, we have sent out over three hundred thousand orders. We have helped countless individuals maintain daily health routines. Our community values reliable nutrition without gimmicks.
Our company has grown and expanded its product range while increasing customer satisfaction each year. We share our knowledge through publications and speak at major wellness events. This work reinforces our expertise in nutritional science. Customer feedback shows a positive impact on health routines. Lean Greens stands committed to delivering simple yet effective nutritional solutions dedicated to improving everyday health effortlessly.
Disclosure: This content is informational and is not a substitute for professional medical advice. Some links on this page are affiliate links.
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