Is Marine Collagen Vegan? The Complete Guide

Is Marine Collagen Vegan?

No, marine collagen is not vegan. Marine collagen is derived from fish skins, scales, bones, and other marine by-products, making it an animal-derived product. While it offers an alternative to mammalian collagen sources and may be suitable for pescatarians, it does not meet vegan dietary requirements that exclude all animal-derived products.

However, marine collagen has emerged as a sustainable, effective alternative to traditional mammalian sources, offering impressive benefits with fewer environmental impacts. Its low molecular weight and exceptional bioavailability make it increasingly popular among those who include animal products in their diet but are seeking more sustainable options.

For those following a strictly vegan lifestyle, there are plant-based collagen alternatives available, which we'll explore in detail later in this article.

What Is Marine Collagen and Why It's Popular

Marine collagen is a protein derived from fish skins, scales, bones, and other marine by-products. Unlike traditional mammalian collagen, marine collagen offers superior bioavailability due to its lower molecular weight, making it easier for your body to absorb and utilize effectively (Prajaputra et al., 2023; Jafari et al., 2020).

This sustainable protein source has gained immense popularity in recent years for several compelling reasons:

• Environmental Sustainability: Marine collagen utilizes fish parts typically discarded during processing, reducing waste and environmental impact (Coppola et al., 2020; Prajaputra et al., 2023)
  
  

• Religious Inclusivity: Free from religious constraints that affect mammalian-sourced products, making it accessible to more diverse populations (Di Benedetto et al., 2014)
  
  

• Reduced Health Risks: Presents significantly lower risk of disease transmission compared to land-animal collagen sources (Shaik et al., 2024; Coppola et al., 2020)
  
  

• Enhanced Biocompatibility: Better accepted by the human body due to its natural amino acid composition (Laasri et al., 2023)
  
  

• Versatile Applications: Widely used across cosmetics, pharmaceuticals, and nutraceuticals industries (Prajaputra et al., 2023; Jafari et al., 2020)
  
  

The beauty industry particularly values marine collagen for its anti-aging effects. In medical fields, it's becoming an essential component in tissue engineering and drug delivery systems, showcasing its versatility beyond simple supplementation (Prajaputra et al., 2023; Jafari et al., 2020; Salvatore et al., 2020).

Types of Collagen

Understanding the different types of collagen is essential for making informed decisions about which supplements align with your health needs and ethical values.

Major Collagen Types in the Human Body

The human body contains at least 28 different types of collagen, with the following being the most abundant:

• Type 1 Collagen: Makes up 90% of your body's collagen and provides structure to skin, bones, tendons, cartilage, and connective tissue. Type 1 collagen is known for its exceptional tensile strength.
  
  

• Type 2 Collagen: Found primarily in cartilage, providing cushioning for joints.
  
  

• Type 3 Collagen: Often works alongside Type 1 to support skin, muscles, and blood vessels.
  
  

• Type 4 Collagen: Forms basal lamina, which is essential for filtration in various tissues.
  
  

Comprehensive Comparison of Marine, Bovine, and Vegan Collagen Types

Source and Composition

Marine Collagen:

• Sourced from: Fish skins, scales, bones, and fins

• Primary collagen type: Predominantly Type 1 collagen

• Amino acid profile: Rich in glycine, proline, and hydroxyproline

• Molecular structure: Lower molecular weight (typically 300-500 kDa) compared to bovine collagen

• Non-vegan status: Derived from animals (fish), therefore not suitable for vegans

Bovine Collagen:

• Sourced from: Cow hides, bones, and cartilage

• Primary collagen types: Contains both Type 1 and Type 3 collagen

• Amino acid profile: Rich in glycine, proline, and alanine

• Molecular structure: Higher molecular weight (approximately 1,000 kDa)

• Non-vegan status: Derived from animals (cattle), therefore not suitable for vegans

Vegan Collagen:

• Sourced from: Plant proteins, genetically modified yeast or bacteria

• Primary approach: Does not contain actual collagen but rather collagen-supporting nutrients or bioengineered proteins

• Amino acid profile: Varies based on source, often enhanced with specific amino acids to support collagen synthesis

• Molecular structure: Not true collagen, but designed to provide building blocks

• Vegan status: Derived entirely from non-animal sources, suitable for vegans

Bioavailability and Absorption

Marine Collagen:

• Features lower molecular weight peptides that absorb more efficiently into the bloodstream

• Higher bioavailability than bovine collagen

• More readily absorbed through intestinal barriers

• Begins working in the body faster due to efficient digestive processes

Bovine Collagen:

• A larger molecular structure requires a more extensive breakdown during digestion

• Moderate bioavailability compared to marine sources

• Still effective, but may take longer to be fully utilized by the body

• More abundant and typically less expensive than marine collagen

Vegan Collagen:

• Not direct collagen, but precursors that require conversion through multiple metabolic processes

• Bioavailability depends on the body's ability to synthesize collagen from provided nutrients

• Generally requires more time to see effects, as the body must manufacture its own collagen

• Effectiveness varies significantly between individuals based on their internal collagen production capabilities

Amino Acid Profiles and Molecular Structures

The efficacy of different collagen types is largely determined by their amino acid composition and molecular structure:

Marine Collagen:

• Contains higher concentrations of amino acids glycine, proline, and hydroxyproline

• Features a more organized triple-helix structure

• Lower molecular weight (300-500 kDa) allows for better absorption in the digestive tract

• More readily dissolves in cold water due to its molecular configuration

Bovine Collagen:

• Contains all essential amino acids but in different proportions than marine collagen

• Larger, more complex molecular structure (approximately 1,000 kDa)

• Requires more extensive digestive breakdown before absorption

• Higher heat stability makes it suitable for cooking applications

Vegan Collagen Alternatives:

• Not true collagen but designed to provide essential amino acids like glycine, proline, and lysine

• Often enhanced with vitamin C, silica, and other cofactors necessary for collagen synthesis

• Molecular structure varies widely between products and sources

• May include genetically engineered proteins designed to mimic aspects of animal collagen

Environmental and Ethical Considerations

Marine Collagen:

• Utilizes by-products from the fishing industries that would otherwise become waste

• Reduces environmental burden through circular economy principles

• Concerns about overfishing and marine ecosystem disruption

• Potential for contamination with heavy metals or microplastics

Bovine Collagen:

• A larger carbon footprint is associated with cattle farming

• Significant water usage and land requirements

• Ethical concerns regarding animal welfare in industrial farming

• Religious restrictions for certain communities

Vegan Collagen:

• Generally lower environmental impact

• No direct animal welfare concerns

• Potential concerns with genetically modified organisms in some products

• May require more processing steps to create functional supplements

• Aligns with ethical principles of veganism and cruelty-free product use

Key Benefits of Marine Collagen for Skin, Hair, and Joints

While not vegan, marine collagen offers significant benefits for those who include animal products in their diet:

Skin Benefits

Marine collagen delivers powerful anti-aging effects for your skin. Type I collagen, the primary form found in fish-derived supplements, significantly reduces wrinkles and improves skin elasticity while enhancing the overall structure and appearance of your skin (Xu et al., 2021; Salvatore et al., 2020).

A 12-week study conducted on women aged 45-60 found that regular supplementation of hydrolyzed marine collagen provided significant improvements in skin health, including a 24% greater reduction in wrinkles and a significant 10-20% improvement in skin elasticity compared to their baseline.

Clinical studies confirm that regular marine collagen supplementation:

• Decreases trans-epidermal water loss

• Reduces the number of visible skin pores

• Increases skin elasticity and hydration

• Promotes faster wound healing

The supplement works by stimulating keratinocyte and fibroblast migration, improving vascularization, and supporting epidermal growth—all essential processes for maintaining optimal skin health and appearance (Shaik et al., 2024; Carvalho et al., 2023).

Hair and Nail Benefits

Your hair and nails benefit tremendously from marine collagen supplementation. By boosting type I collagen levels in your body, marine collagen accelerates the renewal and repair of skin cells, which directly improves the condition of your hair and nails.

A study on the hair growth-promoting effects of fish collagen peptide in human dermal papilla cells found that marine collagen peptides enhanced hair regrowth and proliferation of human dermal papilla cells in vitro. 

The same study orally administered marine collagen peptides to mice for 6 weeks and found that it helped to increase the expression of hair growth factors and decreased the hair growth inhibitor factor making it a potential pathway for hairloss prevention and hair regrowth in those with alopecia.

The increased collagen availability helps strengthen hair follicles and nail beds, resulting in:

• Stronger, more resilient hair strands

• Reduced hair breakage and loss

• Faster nail growth

• Harder, less brittle nails

These improvements stem from marine collagen's exceptional bioavailability and lower molecular weight compared to other collagen sources, allowing for more efficient absorption and utilization by your body (Laasri et al., 2023; Xu et al., 2021).

Vegan Collagen Alternatives

For those following a vegan lifestyle, several plant-based alternatives are available that support your body's natural collagen production without using animal-derived ingredients.

Current Development of Vegan Collagen

The development of vegan collagen alternatives has accelerated in recent years, with two primary approaches:

1. Collagen-Supporting Nutrients: These supplements provide the building blocks and cofactors necessary for your body to produce more collagen naturally.
   
   

2. Bioengineered Proteins: Using genetically modified yeast and bacteria to produce collagen-like proteins that mimic the structure and function of animal-derived collagen.
   
   

Recent biotechnology advances have enabled the creation of true vegan collagen through fermentation processes. These innovative methods use genetically modified microorganisms to produce human-identical collagen proteins without animal inputs, representing a significant breakthrough for vegans seeking effective collagen supplementation.

A recent clinical study conducted on the efficacy of a vegan collagen builder of varying dosages (2.5g, 5g, and 10g) found that it improved multiple age-related concerns such as wrinkles, fine lines, joint pain, muscle strength, and hair growth just like a marine or mammalian collagen would.

Available Vegan Collagen Alternatives

Plant-Based Collagen Boosters:

• Formulated with amino acids (glycine, proline, lysine) essential for collagen synthesis

• Enhanced with vitamin C, which is crucial for collagen formation

• Often include silica, zinc, and copper as cofactors for collagen production

• May incorporate antioxidants that protect existing collagen from damage

Hyaluronic Acid Supplements:

• Works synergistically with collagen in maintaining skin hydration

• Can be derived from plant sources through fermentation

• Helps retain moisture in the skin, mimicking some of collagen's effects

• Often included in comprehensive vegan skin health formulations

Collagen Support Gummies and Powders:

• Convenient delivery formats for plant-based collagen builders

• Often flavored naturally to increase palatability

• Typically combine multiple bioactive nutraceuticals that support skin health

• Free from animal-derived ingredient, including gelatin

Benefits and Limitations of Vegan Collagen

Benefits:

1. Ethical Alignment: Completely cruelty-free and aligned with vegan principles

2. Environmental Impact: Generally lower carbon footprint than animal-derived alternatives

3. Reduced Allergenic Potential: Fewer allergen concerns compared to marine or bovine sources

4. Additional Nutrients: Often formulated with complementary vitamins and minerals

5. Supporting Natural Processes: Works by enhancing the body's inherent collagen production

Limitations:

1. Indirect Approach: Provides building blocks rather than directly supplementing collagen

2. Variable Effectiveness: Results depend on your body's ability to synthesize collagen

3. Slower Results: May take longer to see visible effects compared to direct collagen supplementation

4. Emerging Science: Less extensive clinical research compared to traditional collagen

5. Higher Cost: Often more expensive due to complex formulation and processing requirements

How to Choose Vegan Collagen Supplements

When selecting vegan collagen alternatives, consider these factors to ensure you're getting an effective product:

1. Complete Amino Acid Profile: Look for supplements containing all essential amino acids needed for collagen synthesis, particularly glycine, proline, and lysine.
   
   

2. Vitamin C Content: Ensure adequate vitamin C is included, as it's critical for collagen formation.
   
   

3. Additional Cofactors: Products containing zinc, copper, and silica better support the collagen production process.
   
   

4. Clean Formulation: Choose options free from artificial additives, preservatives, and fillers.
   
   

5. Transparency: Select brands that clearly disclose their ingredient sources and manufacturing processes.
   
   

6. Third-Party Testing: Verify quality through independent laboratory certification.
   
   

7. Scientific Backing: Prioritize products with research supporting their efficacy.
   
   

8. Bioavailability Enhancers: Look for formulations with components that improve nutrient absorption.
   
   

How Marine Collagen Differs from Other Types of Collagen

Marine collagen stands apart from other collagen types due to its unique properties and origin. Understanding these differences helps you make informed choices about which collagen supplement best suits your health needs and values.

Marine vs. Bovine Collagen: Key Differences

Marine and bovine collagens differ significantly in their sources and composition, affecting their applications and benefits:

Source:

• Marine Collagen: Extracted from fish skin, scales, and sometimes shellfish shells, making it suitable for pescatarians and those avoiding beef for dietary, religious, or cultural reasons (Di Benedetto et al., 2014; Prajaputra et al., 2023).

• Bovine Collagen: Derived from cattle skin, tendons, and bones as a by-product of the beef industry, typically more affordable due to large-scale beef production.

Collagen Types:

• Marine Collagen: Primarily contains Type 1 collagen, which specifically targets skin, hair, and nail health, providing superior anti-aging benefits (Prajaputra et al., 2023; Laasri et al., 2023).

• Bovine Collagen: Contains more Type 2 collagen, making it particularly effective for joint health, muscle repair, and athletic performance enhancement.

Marine vs. Plant-Based Alternatives

While plant-based alternatives are emerging as options for vegans, they function differently from true marine collagen:

Composition:

• Marine Collagen: Contains actual collagen peptides that directly supplement your body's natural collagen production (Shaik et al., 2024).

• Plant Alternatives: Don't contain collagen but rather provide building blocks (amino acids) and co-factors that support your body's own collagen synthesis.

Absorption:

• Marine Collagen: Features lower molecular weight peptides that absorb more efficiently into the bloodstream due to their smaller size (Xu et al., 2021; Laasri et al., 2023).

• Plant Alternatives: Require conversion through multiple metabolic processes before becoming usable for collagen production, potentially reducing efficiency.

Sustainability:

• Marine Collagen: Utilizes fish by-products that would otherwise be discarded, reducing waste from seafood industries (Coppola et al., 2020; Hamdi et al., 2025).

• Plant Alternatives: Generally have a lower carbon footprint but may require more processing steps to create a functional collagen-supporting supplement.

What to Look for When Choosing Marine Collagen

If you're not following a vegan diet and are considering marine collagen, here are important factors to consider:

Sourcing and Sustainability Factors

Marine collagen is extracted from the skin and scales of fish, making it an excellent alternative for those who avoid bovine or porcine products due to dietary preferences or allergies. The source of the collagen significantly impacts its quality and environmental footprint. Choose products sourced from sustainable fisheries that adhere to strict quota systems and actively support marine conservation initiatives (Hamdi et al., 2025; Coppola et al., 2020). Sustainable sourcing practices prevent contributing to overfishing and protect marine biodiversity while ensuring you receive a high-quality supplement.

Marine collagen offers a sustainable approach to supplement production as it utilizes byproducts from the fishing industry that might otherwise go to waste. This circular economy approach only achieves true sustainability when the original fish management and husbandry practices are environmentally sound (Prajaputra et al., 2023; Coppola et al., 2020). Look for brands that provide complete traceability information and demonstrate strong environmental credentials through certifications or transparent supply chain documentation.

Purity and Third-Party Testing

The purity of marine collagen directly affects its efficacy and safety. High-quality marine collagen undergoes minimal processing to preserve its bioactive properties while removing potential contaminants. Check for supplements that clearly state their filtration and purification methods, as these processes eliminate heavy metals, microplastics, and other ocean pollutants that can accumulate in marine life (Batista et al., 2022; Martins et al., 2022).

Third-party testing provides crucial verification of a product's quality claims. Reputable marine collagen manufacturers engage independent laboratories to test their products for purity, potency, and contamination. These tests confirm that the collagen contains the advertised amount of protein and is free from harmful substances such as mercury, arsenic, and PCBs (Laasri et al., 2023). Look for products that display their test results or provide access to certificates of analysis, demonstrating the manufacturer's commitment to transparency and quality assurance.

How to Incorporate Vegan Collagen Alternatives into Your Daily Routine

Vegan collagen alternatives can be easily incorporated into your daily routine in ways similar to traditional collagen supplements:

Morning Options

Start your day with collagen-boosting nutrients:

• Add vegan collagen powder to your morning smoothie

• Mix plant-based collagen builders into coffee or tea

• Incorporate into breakfast bowls with fruits and nuts

• Blend into plant-based yogurt alternatives

Throughout the Day

Keep your collagen support consistent:

• Drink collagen-boosting beverages between meals

• Take vegan collagen supplement capsules with lunch

• Consume vitamin C-rich foods to enhance collagen production

• Stay hydrated to support optimal skin health

Evening Routine

Support overnight repair processes:

• Add vegan collagen powder to evening herbal teas

• Consume plant-based collagen boosters before bed

• Use topical vegan collagen-supporting serums

• Ensure adequate sleep for natural collagen production

Potential Side Effects and Considerations

For Marine Collagen (Non-Vegan Option)

Allergic Reactions: Fish allergies pose the primary concern with marine collagen supplements. If you're allergic to fish, you'll likely experience similar reactions to marine collagen, including:

• Skin rashes or hives

• Digestive discomfort

• Swelling of the face, lips, or throat

• Difficulty breathing in severe cases

Always check product labels carefully and consult with a healthcare provider before starting marine collagen if you have known allergies to seafood.

Digestive Issues: Marine collagen occasionally causes mild digestive disturbances, particularly when beginning supplementation. Common digestive side effects include:

• Bloating after consumption

• Feelings of fullness or heaviness

• Mild nausea, especially when taken on an empty stomach

• Changes in bowel movements

Environmental Concerns: The increasing popularity of marine collagen raises environmental concerns regarding fishing practices and marine ecosystem impacts. Consider these factors when selecting a product:

• Source transparency from manufacturers

• Certification from sustainable fishing organizations

• Wild-caught versus farmed fish origins

• Byproduct utilization rather than primary harvesting

For Vegan Collagen Alternatives

Potential Allergies: While vegan alternatives avoid fish and bovine allergens, they may contain other allergens:

• Soy-based ingredients

• Nuts or seeds in some formulations

• Wheat or gluten in certain products

• Reactions to specific plant extracts

Digestive Adaptation: Some plant-based ingredients may cause temporary digestive adjustment:

• Mild bloating from plant proteins

• Changing stool consistency

• Gas from certain plant compounds

• Feelings of fullness or heaviness

Quality Considerations: The quality of vegan collagen alternatives varies significantly:

• Potency differences between brands

• Bioavailability challenges with some formulations

• Ingredient quality variations

• Processing methods affecting efficacy

Always start with lower doses of any new supplement and gradually increase as your body adjusts. Consult with a healthcare provider before beginning any new supplementation regimen, especially if you have existing health conditions or take medications.

Conclusion

Marine collagen is not vegan, as it's derived from fish and other marine animals. However, it offers a sustainable alternative to mammalian collagen sources for those who include animal products in their diet. Its exceptional bioavailability, low molecular weight, and comprehensive amino acid profile make it particularly effective for skin, hair, and joint health.

For those following a vegan lifestyle, the growing market of plant-based collagen alternatives provides options that support the body's natural collagen production without animal derivatives. These alternatives work by providing the building blocks and cofactors necessary for collagen synthesis rather than supplying the collagen directly.

When choosing between these options, consider your dietary preferences, ethical values, environmental concerns, and specific health goals. Whether you opt for marine collagen or vegan alternatives, prioritize high-quality, sustainably sourced products with transparent manufacturing practices and third-party testing.

“As a Registered Dietitian Nutritionist, I frequently recommend marine collagen supplements to my clients as an easy way to boost their nutrition and feel great in their own skin.”

The science of collagen supplementation continues to evolve, with promising innovations in both marine and vegan alternatives. By understanding the fundamental differences between these options, you can make an informed choice that aligns with both your health objectives and personal values.

Frequently Asked Questions

Is marine collagen vegan?

No, marine collagen is not vegan. It is derived from fish skins, scales, bones, and other marine by-products, making it an animal-derived product. While it may be suitable for pescatarians or those who include fish in their diet, it does not meet vegan dietary requirements that exclude all animal-derived products.

What are vegan alternatives to marine collagen?

Vegan alternatives include plant-based collagen boosters that contain amino acids (glycine, proline, lysine) essential for collagen synthesis, enhanced with vitamin C and minerals like silica, zinc, and copper. Newer biotechnology approaches use genetically modified yeast and bacteria to produce human-identical collagen proteins without animal inputs.

How effective are vegan collagen alternatives compared to marine collagen?

Vegan alternatives work differently from marine collagen. Instead of directly providing collagen peptides, they supply the building blocks and cofactors necessary for your body to produce its own collagen. Their effectiveness varies between individuals and depends on your body's natural collagen synthesis capacity. Results may take longer to appear compared to direct supplementation with marine collagen.

What types of collagen are in marine collagen supplements?

Marine collagen supplements primarily contain Type 1 collagen, which is beneficial for skin, hair, and nail health. This type makes up approximately 90% of the collagen in your body and provides structure to skin, bones, tendons, and connective tissue.

How do the amino acid profiles differ between marine and vegan collagen?

Marine collagen contains a complete profile of amino acids naturally found in collagen, including high concentrations of glycine, proline, and hydroxyproline in their bioavailable form. Vegan alternatives provide these key amino acids from plant sources, but they must first be converted through metabolic processes before becoming usable for collagen production.

What environmental considerations should I keep in mind when choosing between marine and vegan collagen?

Marine collagen utilizes fish industry by-products that might otherwise be wasted, supporting circular economy principles. However, concerns exist about fishing practices and marine ecosystem impacts. Vegan alternatives generally have a lower carbon footprint but may require more processing steps. Look for sustainable certifications and transparent sourcing information regardless of which type you choose.

Can I get the same benefits from vegan collagen as from marine collagen?

While both options support skin, hair, and joint health, they work through different mechanisms. Marine collagen directly supplements your body's collagen levels with bioavailable peptides. Vegan alternatives support your body's natural production processes. Many users report benefits from both approaches, though results may vary in onset time and intensity.

How can I tell if a collagen supplement is truly vegan?

Look for explicit "vegan" or "plant-based" labeling on the product. Check the ingredient list for common animal-derived components like gelatin, marine collagen, or bone broth. Verify that the product is certified by vegan organizations. Contact manufacturers directly if you're uncertain about ingredient sourcing or manufacturing processes.

Also Read:

Marine Collagen Benefits for Skin and Beyond

Marine vs Bovine Collagen: Which is Right For You?

How Much Collagen Per Day Should You Take?

References

Batista, M., Fernández, N., Gaspar, F., Bronze, M., & Duarte, A. (2022). Extraction of Biocompatible Collagen From Blue Shark Skins Through the Conventional Extraction Process Intensification Using Natural Deep Eutectic Solvents. Frontiers in Chemistry, 10. https://doi.org/10.3389/fchem.2022.937036

Cadar, E., Pesterau, A., Prasacu, I., Ionescu, A., Pascale, C., Dragan, A., Sirbu, R., & Tomescu, C. (2024). Marine Antioxidants from Marine Collagen and Collagen Peptides with Nutraceuticals Applications: A Review. Antioxidants, 13. https://doi.org/10.3390/antiox13080919

Carvalho, D., Gelinsky, M., Williams, D., Mearns-Spragg, A., Reis, R., & Silva, T. (2023). Marine collagen-chitosan-fucoidan/chondroitin sulfate cryo-biomaterials loaded with primary human cells envisaging cartilage tissue engineering. International journal of biological macromolecules. https://doi.org/10.1016/j.ijbiomac.2023.124510

Coppola, D., Oliviero, M., Vitale, G., Lauritano, C., D'Ambra, I., Iannace, S., & De Pascale, D. (2020). Marine Collagen from Alternative and Sustainable Sources: Extraction, Processing and Applications. Marine Drugs, 18. https://doi.org/10.3390/md18040214

Di Benedetto, C., Barbaglio, A., Martinello, T., Alongi, V., Fassini, D., Cullorà, E., Patruno, M., Bonasoro, F., Barbosa, M., Carnevali, M., & Sugni, M. (2014). Production, Characterization and Biocompatibility of Marine Collagen Matrices from an Alternative and Sustainable Source: The Sea Urchin Paracentrotus lividus. Marine Drugs, 12, 4912-4933. https://doi.org/10.3390/md12094912

Hamdi, M., Wang, D., Li, S., & Su, F. (2025). Unveiling an innovative sustainable blue resource-ecofriendly extraction technique towards a circular economy: Optimization of natural deep eutectic solvent and ultrasonication synergistic pathways for type-I collagen refined recovery from discarded fish scales. International journal of biological macromolecules, 140296. https://doi.org/10.1016/j.ijbiomac.2025.140296

Jafari, H., Lista, A., Siekapen, M., Ghaffari-Bohlouli, P., Nie, L., Alimoradi, H., & Shavandi, A. (2020). Fish Collagen: Extraction, Characterization, and Applications for Biomaterials Engineering. Polymers, 12. https://doi.org/10.3390/polym12102230

Laasri, I., Bakkali, M., Torrent, L., & Laglaoui, A. (2023). Marine collagen: Unveiling the blue resource-extraction techniques and multifaceted applications. International journal of biological macromolecules, 127253. https://doi.org/10.1016/j.ijbiomac.2023.127253

Martins, E., Fernandes, R., Alves, A., Sousa, R., Reis, R., & Silva, T. (2022). Skin Byproducts of Reinhardtius hippoglossoides (Greenland Halibut) as Ecosustainable Source of Marine Collagen. Applied Sciences. https://doi.org/10.3390/app122111282

Pomanenko, N., Mezenova, O., & Nekrasova, Y. (2021). Specialized sports nutrition products using protein hydrolysis compositions of collagen-containing fish raw materials. Vestnik MGTU. https://doi.org/10.21443/1560-9278-2021-24-4-414-427

Prajaputra, V., Isnaini, N., Maryam, S., Ernawati, E., Deliana, F., Haridhi, H., Fadli, N., Karina, S., Agustina, S., Nurfadillah, N., Arisa, I., Desiyana, L., & Bakri, T. (2023). Exploring Marine Collagen: Sustainable Sourcing, Extraction Methods, and Cosmetic Applications. South African Journal of Chemical Engineering. https://doi.org/10.1016/j.sajce.2023.11.006

Şahin, K., Orhan, C., Tuzcu, M., Şahin, N., & Juturu, V. (2020). Effect of Marine Phytoplankton (Oceanix) and Undenatured Type II Collagen in Combination with Exercise on Endurance Capacity and Oxidative Stress in Rats. Current Developments in Nutrition. https://doi.org/10.1093/cdn/nzaa066_019

Salvatore, L., Gallo, N., Natali, M., Campa, L., Lunetti, P., Madaghiele, M., Blasi, F., Corallo, A., Capobianco, L., & Sannino, A. (2020). Marine collagen and its derivatives: Versatile and sustainable bio-resources for healthcare. Materials science & engineering. C, Materials for biological applications, 113, 110963. https://doi.org/10.1016/j.msec.2020.110963

Shaik, M., Rahman, S., Yusri, A., Ismail‐Fitry, M., Kumar, N., & Sarbon, N. (2024). A review on the processing technique, physicochemical, and bioactive properties of marine collagen. Journal of food science. https://doi.org/10.1111/1750-3841.17273

Xu, N., Peng, X., Li, H., Liu, J., Cheng, J., Qi, X., Ye, S., Gong, H., Zhao, X., Yu, J., Xu, G., & Wei, D. (2021). Marine-Derived Collagen as Biomaterials for Human Health. Frontiers in Nutrition, 8. https://doi.org/10.3389/fnut.2021.702108