Reviewed by Dr. Ilma Imtiaz

Quick answer: Marine and bovine collagen both provide collagen peptides, but the source alone does not determine how well a product works. Current research suggests that peptide profile, clinical evidence, and daily dose are more important than whether the collagen comes from fish or cattle. Specific ingredients such as VERISOL® (bovine) and VERISOL®-F (marine) have been clinically studied for skin health, whereas many generic collagen products have not.

Why This Question Is More Complicated Than It Sounds

One of the most common questions about collagen supplements is whether marine collagen is better than bovine collagen. Most articles answer this by comparing fish versus cattle, but that's only part of the story.

Collagen supplements differ far more than their source. The tissue used (skin, scales, hide or bone), the manufacturing process, the peptide profile, molecular weight distribution, and, most importantly, the available clinical evidence can all influence how an ingredient performs. For someone comparing collagen products, the more useful question is often: Has this specific collagen ingredient been clinically studied?

Where Marine and Bovine Collagen Come From

Marine collagen is typically produced from fish skin, scales or bones [1], often using by-products from the seafood industry. Specific marine ingredients such as VERISOL®-F are specifically produced from fish skin under controlled manufacturing conditions to generate a standardized peptide profile rich in type I collagen [2].

Bovine collagen is generally produced from cattle hides and bones. Skin-focused collagen ingredients, such as VERISOL®, are produced by enzymatically hydrolyzing bovine type I collagen into specific bioactive peptides that have been clinically studied for skin health [3].

For both sources, quality depends less on the animal itself and more on factors such as traceable sourcing, GMP-certified manufacturing, and rigorous quality testing.

Does Collagen Type Matter More Than the Animal?

Many people assume that fish collagen must be better simply because it comes from fish. Current evidence does not support that conclusion.

For skin health, the key collagen type is type I collagen, which is abundant in both marine and bovine skin-derived collagen ingredients. Once collagen has been hydrolyzed into specific peptide fragments, the peptide composition and manufacturing process become more important than the original animal source.

This is why VERISOL® and VERISOL®-F are better viewed as comparable bioactive collagen peptide ingredients produced from different raw materials rather than completely different products.

What Does the Clinical Research Show?

Perhaps the most important finding from the scientific literature is that the strongest evidence is ingredient-specific rather than source-specific.

Several randomized placebo-controlled studies have investigated VERISOL®, the bovine-derived Bioactive Collagen Peptides ingredient, at 2.5 g/day [3-8]. These studies have reported improvements in skin elasticity, wrinkle appearance, cellulite morphology, nail strength and hair thickness in healthy adults.

VERISOL®-F, the marine-derived version, has also been evaluated in a randomized placebo-controlled trial. In this study, 76 Asian and Caucasian women aged 50–70 years consumed VERISOL®-F for eight weeks [2]. Compared with placebo, participants showed significant improvements in skin elasticity and reductions in eye wrinkle volume, with benefits remaining measurable four weeks after supplementation had stopped.

Importantly, the authors emphasized that these findings apply to this specific marine bioactive collagen peptide ingredient and should not automatically be generalized to other marine collagen products. Taken together, these studies suggest that both marine-derived VERISOL®-F and bovine-derived VERISOL® can support skin health, but neither demonstrates that marine collagen is inherently superior to bovine collagen.

Comparing Marine and Bovine Collagen

Is Marine Collagen More Bioavailable?

One of the most common marketing claims is that marine collagen is "more bioavailable" because the peptides are smaller. The reality is more nuanced.

Both marine and bovine collagen are hydrolyzed during manufacturing, and both can be processed to produce similar molecular weight distributions. Once collagen has been broken down into comparable peptide sizes, absorption depends more on the peptide profile than on whether the collagen originally came from fish or cattle.

For branded ingredients such as VERISOL® and VERISOL®-F, manufacturers instead focus on generating a standardized peptide profile designed to produce consistent biological activity, rather than relying on the collagen source alone.

When Does the Source Actually Matter?

From a clinical perspective, current evidence does not suggest that marine collagen is inherently superior to bovine collagen for skin health when comparable bioactive collagen peptide ingredients are used. However, the collagen source can still influence product choice for practical, dietary, and personal reasons.

Marine collagen may be preferred by individuals who:

• Follow a pescatarian diet or avoid land-animal products but eat fish. 
• Follow dietary or cultural practices that make fish-derived ingredients more appropriate. 
• Prefer fish-derived ingredients for personal or environmental reasons. 
• Are specifically looking for a marine-derived collagen ingredient. 

Bovine collagen may be preferred by individuals who:

• Avoid seafood or fish-derived ingredients. 
• Have a fish or seafood allergy. 
• Prefer bovine-derived ingredients or are looking for an ingredient with a broader published clinical evidence base. 

For many consumers, however, the more important consideration is not whether the collagen comes from fish or cattle, but whether the specific ingredient has been clinically studied for the outcome they are interested in. Choosing a standardized collagen peptide with published human research is generally more informative than choosing based on the collagen source alone.

Regardless of whether collagen is marine or bovine, it is also worth looking for products manufactured in GMP-certified facilities, made from traceable raw materials, and that clearly identify both the collagen ingredient and the daily dose used in published clinical studies.

How to Compare a Collagen Label

When comparing products, ask these questions:

Take-Home Message

If you're choosing between marine and bovine collagen, don't stop at the front of the label. Look for a named ingredient, a clinically studied dose, and evidence that matches your health goal. The source tells you where the collagen came from, but the ingredient tells you what has actually been studied.

FAQs

Is marine collagen better than bovine collagen?

Current evidence does not show that marine collagen is inherently superior to bovine collagen for skin health. The more important consideration is whether the specific collagen ingredient has been clinically studied, such as VERISOL® or VERISOL®-F.

Is grass-fed bovine collagen better than marine collagen?

Not necessarily. "Grass-fed" describes the source of the cattle, not the peptide profile or clinical evidence. When comparing collagen products, ingredient-specific research is generally more informative than the source alone.

Can I take marine and bovine collagen together?

Yes. There is no known safety concern with taking marine and bovine collagen together. Whether you choose one or both depends on your dietary preferences, ingredient choice, and individual needs..

Is marine collagen more bioavailable than bovine collagen?

Both marine and bovine collagen can be processed into similar peptide sizes. Current evidence suggests that peptide profile and ingredient design are likely to be more important than the collagen source itself.

What type of collagen do marine and bovine collagen provide?

Marine collagen is predominantly type I collagen, while bovine collagen typically provides type I and type III collagen. For skin health, both supply type I collagen peptides.

How do I choose between marine and bovine collagen?

For most people, the choice comes down to dietary preference, allergies, and ingredient quality rather than efficacy. Look for a named ingredient with published human clinical research and a dose that matches the studies.

How do I know if a collagen product has been clinically studied?

Check the ingredient list for a named ingredient such as VERISOL® or VERISOL®-F. Labels that simply state "marine collagen" or "bovine collagen" do not indicate whether the specific ingredient has been clinically studied.

References

1. Coppola D, Oliviero M, Vitale GA, Lauritano C, D’Ambra I, Iannace S, de Pascale D. Marine collagen from alternative and sustainable sources: extraction, processing and applications. Marine Drugs. 2020; 18(4):214. https://doi.org/10.3390/md18040214

2. Oesser S, Schunck M, Proksch E. Positive effect of fish-derived Bioactive Collagen Peptides on skin health. Int J Nutraceuticals Funct Foods Novel Foods. 2020. https://www.nutrafoods.eu/index.php/nutra/article/view/8 

3. Proksch E, Zdzieblik D, Oesser S. The oral intake of specific bovine-derived bioactive collagen peptides has a stimulatory effect on dermal matrix synthesis and improves various clinical skin parameters. Cosmetics. 2025;12(2):79. https://doi.org/10.3390/cosmetics12020079 

4. Hexsel D, Zague V, Schunck M, Siega C, Camozzato FO, Oesser S. Oral supplementation with specific bioactive collagen peptides improves nail growth and reduces symptoms of brittle nails. J Cosmet Dermatol. 2017;16(4):520-526. https://doi.org/10.1111/jocd.12393 

5. Oesser S. The oral intake of specific bioactive collagen peptides has a positive effect on hair thickness. Int J Nutraceuticals Funct Foods Novel Foods. 2020. https://www.nutrafoods.eu/index.php/nutra/article/view/9 

6. Proksch E, Schunck M, Zague V, Segger D, Degwert J, Oesser S. Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis. Skin Pharmacol Physiol. 2014;27(3):113-119. https://doi.org/10.1159/000355523 

7. Proksch E, Segger D, Degwert J, Schunck M, Zague V, Oesser S. Oral supplementation of specific collagen peptides has beneficial effects on human skin physiology: a double-blind, placebo-controlled study. Skin Pharmacol Physiol. 2014;27(1):47-55. https://doi.org/10.1159/000351376 

8. Schunck M, Zague V, Oesser S, Proksch E. Dietary supplementation with specific collagen peptides has a body mass index-dependent beneficial effect on cellulite morphology. J Med Food. 2015;18(12):1340-1348. https://doi.org/10.1089/jmf.2015.0022

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.