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Mc7.5
Marine Collagen Research
Likely helpsHigh safety
25 peer-reviewed studies
What the evidence says
Likely helps
Marine Collagen appears to help in 4 of 4 studies with measurable effects — the evidence leans clearly favourable.
Most evidence is from high-quality meta-analyses and randomised trials published 2010–2026 with a typical study size of 50 participants.
Based on 25 studies · 1 meta-analysis · 11 RCTs · 650 total participants
Confidence
Moderate
What the studies found
4helped· 21 more without graded effect data
By outcome
Skin healthType I collagen peptides improve skin elasticity and hydration · 4-8 weeks
Likely helps17 studies
Therapeutic & clinical
Mostly mechanism / observational7 studies
Bone healthSupports bone mineral density and skeletal strength · 8-12 weeks
InflammationBetter joint comfort and mobility · 12-24 weeks
Too few graded studies1 study
By the numbers
Pulled from 15 studies with measurable effects
Likely real effects
100%
across studies
People studied
650
typical study: 50 people
Strongest designs
12
1 pooled, 11 randomised
Showed benefit
100%
4/4 studies
How long studies ran
1–3 months
3
3+ months
3
Populations Studied
Not specified3
Adults2
General population2
Individuals with joint problems/osteoarthritis1
Active research area
12 studies in the last 5 years · Latest meta-analysis: 2020
201020182026
1Systematic ReviewCited 13×2025
Future research should focus on increasing the collagen extraction yield, improving the smell and flavor, and developing novel delivery systems to increase bioavailability and functionality.
Islam J et al. · Marine drugs (2025)
Hence, recent interest has propelled research in identifying novel collagen sources and advancing technologies to produce marine collagen-based products.
The review highlights certain challenges, including unpleasant odor, flavor, color, insufficient supply, and inconsistent quality of marine collagen.
Future research should focus on increasing the collagen extraction yield, improving the smell and flavor, and developing novel delivery systems to increase bioavailability and functionality.
The paper concludes with recommendations for fostering innovation and sustainability in the valorization of these marine resources.
Almeida M et al. · Marine drugs (2025)
In alignment with the United Nations Sustainable Development Goals (SDGs), we analyze how these applications contribute to sustainability, particularly in SDGs related to responsible consumption and production, good health and well-being, and life below water.
Furthermore, we contextualize the advancement of product development using marine collagen and chitin/chitosan within the European Union's Blue bioeconomy strategies, highlighting trends in scientific research and technological innovation through bibliometric and patent data.
Finally, the review addresses challenges facing the development of robust value chains for these marine biopolymers, including collaboration, regulatory hurdles, supply-chain constraints, policy and financial support, education and training, and the need for integrated marine resource management.
This article also highlights recent advancements in extraction methods, physicochemical characterization, and the role of collagen-based composites in food applications, such as emulsification, sta...
Ahmad K et al. · International journal of biological macromolecules (2025)
This article also highlights recent advancements in extraction methods, physicochemical characterization, and the role of collagen-based composites in food applications, such as emulsification, stabilization, and microencapsulation.
Furthermore, this review also summarizes the challenges related to the lower thermal stability of marine collagen compared to mammalian sources, along with potential solutions through innovative processing techniques.
Finally, the article briefly discusses how marine collagen-based bio-composites offer promising prospects for developing functional and sustainable food products.
This review synthesizes current knowledge and identifies promising directions for future research in biopolymer-based therapeutic strategies.
Kruczkowska W et al. · Molecules (Basel, Switzerland) (2025)
By analyzing recent experimental studies, we evaluate the effectiveness of different biopolymer-based delivery systems in crossing the blood-brain barrier and their subsequent neuroprotective effects.
Additionally, promising materials, including lignin, poly lactic-co-glycolic acid, and glucose-modified bovine serum albumin/procyanidin complexes, are briefly explored to provide a comprehensive overview of current developments in the field.
Our analysis reveals that biopolymer-based approaches offer unique advantages in both neuroprotection and drug delivery, potentially opening new avenues for treating neurodegenerative conditions.
5Skin aging delay through marine collagenSystematic ReviewCited 16×2024
Thus, by delving into these nuanced considerations, this review contributes to a comprehensive understanding of the potential and challenges associated with marine collagen in the realm of anti-aging applications.
Rahman A et al. · Marine drugs (2024)
Furthermore, the topical application of hyaluronic acid is discussed as a mechanism to increase collagen production and skin moisture, contributing to the anti-aging effects of collagen supplementation.
The integration of bio-tissue engineering in marine collagen applications is also explored, highlighting its proven utility in skin healing and bone regeneration applications.
However, limitations to the scope of its application exist.
6Bone regeneration with fish collagen peptidesSystematic ReviewCited 6×2021
It is desirable to be applied clinically through clinical study as soon as possible, based on the results from basic research.
Yamada S et al. · Dental materials journal (2021)
Furthermore, it could accelerate matrix mineralization.
FCP may have potential utility as a biomaterial to improve collagen quality and promote mineralization through the mitogen-activated protein kinase and Smad cascades.
However, there are few clinical studies on bone regeneration in human subjects.
Particular attention is given to the bioactive properties of marine collagen that are being explored in preclinical and clinical studies, and pave the way to an increased demand for this biomateria...
Salvatore L et al. · Materials science & engineering. C, Materials for biological applications (2020)
Particular attention is given to the bioactive properties of marine collagen that are being explored in preclinical and clinical studies, and pave the way to an increased demand for this biomaterial in the next future.
The marine collagen market is also briefly discussed to highlight the opportunities and the most profitable areas of interest.
Therefore, this review covers the current understanding of the structure, bioactivities, and biological effects of collagen, gelatin, and gelatin hydrolysates as well as their most recent applications.
Liu D et al. · Annual review of food science and technology (2015)
Numerous studies have investigated the bioactivities and biological effects of collagen, gelatin, and their hydrolysis peptides, using both in vitro and in vivo assay models.
Moreover, an increasing number of novel applications have been found for collagen and gelatin.
9Biomedical applications of marine collagenSystematic ReviewCited 158×2019
Despite all the challenges, MC holds great promise as a biomaterial for developing medical products and therapeutics.
Lim YS et al. · Marine drugs (2019)
This review focuses on the expanding role of marine collagen (MC)-based scaffolds for biomedical applications.
A scaffold-a three-dimensional (3D) structure fabricated from biomaterials-is a key supporting element for cell attachment, growth, and maintenance in 3D cell culture and tissue engineering.
The mechanical and biological properties of the scaffolds influence cell morphology, behavior, and function.
11Skin hydration, elasticity, and wrinklingRCTCited 103×n=64 · small study2018
These results suggest that LMWCP can be used as a health functional food ingredient to improve human skin hydration, elasticity, and wrinkling.
Kim DU et al. · Nutrients (2018)
The aim of this study was to conduct a double-blind, randomized, placebo-controlled trial to clinically evaluate the effect on human skin hydration, wrinkling, and elasticity of Low-molecular-weight Collagen peptide (LMWCP) with a tripetide (Gly-X-Y) content >15% including 3% Gly-Pro-Hyp.
After 12 weeks in the LMWCP group, visual assessment score and three parameters of skin wrinkling were significantly improved compared with the placebo group.
In case of skin elasticity, one parameter out of three was significantly improved in the LMWCP group from the baseline after 12 weeks, while, compared with the placebo group, two parameters out of three in the LMWCP group were higher with significance after 12 weeks.
13Skin hydration, brightness, texture, and collagen contentRCTCited 14×n=50 · small study2021
This clinical study demonstrates the synergistic effect of fish collagen and Djulis (the main components) for the substantial improvements in hydration, brightness, crow's feet, texture, wrinkles, pores, surface spots, and collagen content in skin.
Lin P et al. · Journal of cosmetic dermatology (2021)
Large benefit
← WorseNo effectBetter →
The improvements of skin hydration, brightness, crow's feet, texture, wrinkles, pores, spots, and collagen content after 8 weeks in collagen group were 17.8%, 5.4%, 14.9%, 9.9%, 29.3%, 10.4%, 9.9%, and 22.3%, respectively.
Noticeably, over 68% of subjects got improved for their skin parameters after 8-week intake of collagen drink.
This clinical study demonstrates the synergistic effect of fish collagen and Djulis (the main components) for the substantial improvements in hydration, brightness, crow's feet, texture, wrinkles, pores, surface spots, and collagen content in skin.
Subjects consuming the test product had an overall significant increase in skin elasticity (+40%; P < .0001) when compared to placebo.
Czajka A et al. · Nutrition research (New York, N.Y.) (2018)
Subjects consuming the test product had an overall significant increase in skin elasticity (+40%; P < .0001) when compared to placebo.
In addition, the consumption of the test product reduced joint pain by -43% and improved joint mobility by +39%.
As reported in the self-perception questionnaires, these results were confirmed by the subjects' own perceptions in that participants agreed their skin was more hydrated and more elastic.
15Skin antiaging and systemic redox effectsRCTCited 61×n=41 · small study2016
A combination of MCPs with skin-targeting AOs could be effective and safe supplement to improve skin properties without risk of oxidative damage.
De Luca C et al. · Oxidative medicine and cellular longevity (2016)
Metabolic data showed significant increase of plasma hydroxyproline and ATP storage in erythrocytes.
Redox parameters, GSH/coenzyme Q10 content, and GPx/GST activities were unchanged, while NO and MDA were moderately increased within, however, normal range of values.
A combination of MCPs with skin-targeting AOs could be effective and safe supplement to improve skin properties without risk of oxidative damage.
16Cutaneous rejuvenation and skin firmnessRCTCited 9×n=22 · very small study2018
Ortho-silicic acid stabilized by hydrolyzed collagen in a daily dose of 600 mg showed positive results in skin rejuvenation according to clinical evaluation in firmness, hydration, and skin texture.
Petersen Vitello Kalil CL et al. · Journal of cosmetic dermatology (2018)
Treatment satisfaction in group 1 reached 80%.
Ortho-silicic acid stabilized by hydrolyzed collagen in a daily dose of 600 mg showed positive results in skin rejuvenation according to clinical evaluation in firmness, hydration, and skin texture.
Further studies with larger and representative samples should be conducted to confirm our results.
17Skin wrinkles and elasticityRCTCited 48×n=12 · very small study2021
Supplementation with VWC was found to be safe and well-tolerated.
Evans M et al. · Journal of cosmetic dermatology (2021)
Huge benefit
← WorseNo effectBetter →
Likely real
After 12 weeks, participants supplemented with VWC had a significant 35% reduction in wrinkle score (P = .035) from baseline.
Participants in the VWC group showed a 24% greater reduction in wrinkles on the right side of the face than those on placebo.
A planned subgroup analysis based on age showed women 45-54 years had a significant 20% and 10% improvement in cheek skin elasticity from baseline to week 6 (P = .016) and 12 (P = .022), respectively.
18Bone turnover and bone mineral densitySystematic Review2026
Alvi A et al. · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA (2026)
Although early clinical trials suggest beneficial effects on bone turnover and bone mineral density, robust, large-scale randomized studies are still needed to confirm these findings.
FCHs thus present a promising but still developing therapeutic avenue in the prevention and management of osteoporosis.
19Cellulite severity and skin elasticityRCTn=114 · medium study2026
Daily intake of LMWCP for 24 weeks effectively reduces thigh cellulite and promotes hair thickness, supporting its potential as an orally administered functional ingredient for skin and hair health.
Hwang S et al. · Journal of medicinal food (2026)
Noticeable benefit
← WorseNo effectBetter →
Preliminary human pharmacokinetic data showed that oral LMWCP markedly increased systemic exposure to GPH, yielding an approximately 54-fold higher area under the concentration-time curve from 0 to 2 h (3388 ± 1084 ng·h/mL) than general collagen.
The LMWCP group demonstrated significant improvements in cellulite severity, dermal-subcutaneous border length, skin roughness, and skin elasticity at weeks 12 and 24 compared to the placebo group.
Hair diameter also increased significantly at week 24, with a larger proportion of participants in the LMWCP group exhibiting measurable hair thickening.
MCP treatment improved glucose and lipid metabolism in diabetic patients.
Zhu CF et al. · Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme (2010)
Interestingly, significantly decreased levels of hs-CRP and NO, but increased levels of bradykinin, PGI2, and adiponectin were detected in MCP-treated T2DM patients (p < 0.01), as compared with their basal values or the levels in patient controls.
The values of these measures were significantly lower or higher than those of patient controls (p < 0.01), respectively.
MCP treatment improved glucose and lipid metabolism in diabetic patients.