Every collagen peptide on the market makes similar promises. This one delivers something structurally different.
Derived from the fins of blue sharks harvested in Kesennuma, Japan and Taiwan, this ingredient is not simply another hydrolyzed marine collagen. Through controlled enzymatic hydrolysis, the manufacturer produces low-molecular-weight peptides (average ~3,000 Da; 70% below 3,000 Da) while preserving the naturally occurring chondroitin sulfate and mucopolysaccharides embedded in shark fin cartilage. This triple composition — collagen peptides + chondroitin sulfate + mucopolysaccharides — is unique to shark fin origin and cannot be replicated from porcine, bovine, or standard fish collagen sources.
The result is a single-origin ingredient that addresses two high-growth supplement categories simultaneously: beauty-from-within (skin hydration, anti-aging) and joint health (cartilage support, mobility). For R&D teams and brand owners, this eliminates the need for multi-ingredient stacking to achieve the same functional profile.
Manufactured by Nihon Yakuhin Co., Ltd. (Tokyo, est. 1997) — a company specializing in the valorization of underutilized marine and terrestrial biological resources — and distributed exclusively for export markets by Iizuka Shoukai LLC.
The supplement industry offers hundreds of collagen peptide ingredients. Nearly all share the same limitation: they are pure protein hydrolysates stripped of the surrounding matrix compounds during extraction. Shark fin collagen peptide retains what others discard.
Chondroitin sulfate is a glycosaminoglycan (GAG) that attracts and retains water within cartilage and skin tissue. In joint health applications, chondroitin inhibits proteolytic enzymes responsible for cartilage degradation. In beauty formulations, it enhances deep-layer skin hydration beyond what collagen peptides alone can achieve. Standard marine, porcine, and bovine collagen products do not contain chondroitin sulfate — it must be added as a separate ingredient, increasing formulation cost and complexity.
Mucopolysaccharides are complex carbohydrate-protein molecules that form the ground substance of connective tissue. They provide exceptional water-binding capacity — the mechanism behind the legendary moisture-retaining properties attributed to shark fin in traditional Asian wellness culture. Clinical-grade mucopolysaccharides support tissue hydration, elasticity, and structural integrity.
Low molecular weight (~3,000 Da) ensures rapid absorption. For context: standard gelatin has a molecular weight of 100,000–200,000 Da. At 3,000 Da, these peptides pass through the intestinal barrier efficiently, reaching target tissues — skin dermis and joint cartilage — at higher bioavailable concentrations than conventional collagen hydrolysates.
The combination of collagen peptides with native chondroitin sulfate and mucopolysaccharides creates a hydration effect that pure collagen cannot match. Chondroitin sulfate's polyanionic structure attracts water molecules into the extracellular matrix, while mucopolysaccharides lock that moisture in place. This is not a theoretical benefit — it is the biochemical mechanism that makes shark fin a prized ingredient in Asian beauty and health traditions, now available as a standardized, food-grade powder for modern supplement formulations.
For formulators targeting the premium beauty-from-within segment, this means a single ingredient that delivers both the peptide signaling (stimulating fibroblast activity and endogenous collagen synthesis) and the hydration matrix support (retaining moisture at the tissue level). Two mechanisms, one ingredient, one line on the label.
Most collagen ingredients force brand owners to choose: beauty positioning or joint health positioning. Shark fin collagen peptide supports both claims from a single raw material:
Beauty & skin health: Low-molecular collagen peptides stimulate dermal fibroblast activity and promote endogenous collagen synthesis. The accompanying chondroitin sulfate and mucopolysaccharides provide deep hydration support at the extracellular matrix level — addressing both the structural and moisture components of skin aging.
Joint & cartilage health: Chondroitin sulfate is one of the most clinically validated joint health ingredients globally, with extensive evidence for cartilage protection and osteoarthritis symptom management. Combined with bioavailable collagen peptides that support cartilage matrix regeneration, this ingredient offers a complete joint support profile without requiring additional chondroitin sourcing.
This dual functionality opens formulation pathways for premium multi-benefit supplements — a rapidly growing category as consumers increasingly seek products that address multiple health goals in fewer capsules.
Appearance: Fine white to off-white powder.
Odor: Mild marine note, significantly less pronounced than standard fish collagen. Suitable for neutral-flavored capsule and tablet applications.
Taste: Mild, neutral. Compatible with flavor-masked formulations and unflavored capsules.
Solubility: Good dispersibility in water. Suitable for powder blends, sachets, and liquid formulations with appropriate mixing.
Recommended daily intake: Reference dosage from OEM applications: 2,000 mg collagen per serving (based on the proven Collagen Premium jelly formulation developed for a Southeast Asian wellness brand). Dosage may be adjusted based on target claims and regulatory requirements in the destination market.
Application forms: Capsules, tablets, powder sachets, functional jellies, beauty drinks, and multi-ingredient formulations. The low molecular weight ensures excellent compatibility in liquid and semi-solid formats. Proven in OEM: successfully used as the core ingredient in a custom premium collagen formula combining shark fin collagen with phycocyanin powder, rose placenta extract, and Japanese ceramides — a formulation with no direct market equivalent in Southeast Asia.
Suggested formulation strategies:
Premium beauty-from-within: Shark fin collagen + hyaluronic acid + ceramides + vitamin C — a next-generation beauty supplement targeting deep hydration and anti-aging with built-in chondroitin support that competitors' formulas lack.
Joint health plus beauty: Shark fin collagen + glucosamine + MSM — leveraging the native chondroitin content to reduce ingredient count while expanding claim scope.
Ultra-premium single-ingredient: Pure shark fin collagen peptide in high-dose sachets (3,000–5,000 mg/day) positioned as a rare Japanese marine beauty ingredient for the luxury supplement segment.
We will help you choose the form, dosage, and packaging for your brand
Marine collagen is a structural protein derived from the skin, scales, bones, or fins of marine organisms — primarily fish, but also including sharks and other cartilaginous species. It is the most abundant protein in marine vertebrates, providing structural integrity to skin, cartilage, bones, and connective tissues.
In the supplement and cosmetic industries, marine collagen has become the fastest-growing collagen source, driven by consumer preference for non-bovine, non-porcine alternatives that align with pescatarian diets, halal considerations, and clean-label demands. The global marine collagen market is projected to exceed $1.2 billion by 2028, with beauty-from-within and joint health as the two dominant application categories.
Marine collagen is predominantly Type I collagen — the same type found in human skin and bones — which makes it particularly relevant for beauty and structural health applications. Its lower denaturation temperature compared to mammalian collagen allows for more efficient enzymatic hydrolysis, yielding smaller peptide fragments with superior bioavailability.
Not all collagen peptides are created equal. The single most important factor determining collagen bioavailability is molecular weight — the size of the peptide chains after hydrolysis.
Standard gelatin (minimally hydrolyzed collagen) has a molecular weight of 100,000–200,000 Daltons (Da). These large molecules are poorly absorbed through the intestinal wall, with most of the ingested protein being broken down into individual amino acids before reaching target tissues — losing their peptide signaling function in the process.
Hydrolyzed collagen peptides typically range from 2,000–10,000 Da. At these sizes, peptides can be absorbed intact through intestinal epithelial cells and transported via the bloodstream to skin, joints, and bones, where they exert bioactive effects — stimulating fibroblast activity, promoting endogenous collagen synthesis, and signaling tissue repair processes.
Shark fin collagen peptide achieves an average molecular weight of approximately 3,000 Da, with 70% of peptides falling below 3,000 Da. This places it at the high-bioavailability end of the spectrum — small enough for efficient absorption, large enough to retain bioactive peptide sequences that trigger the desired physiological responses.
Chondroitin sulfate is one of the most extensively researched ingredients in the joint health category. As a major structural component of articular cartilage, it plays a critical role in maintaining the water content, elasticity, and shock-absorbing properties of joints.
Clinical evidence supports chondroitin sulfate's efficacy in reducing osteoarthritis symptoms, slowing cartilage degradation, and improving joint function. It is frequently combined with glucosamine in supplement formulations — a pairing that has become a gold standard in the joint health category. Meta-analyses suggest that chondroitin sulfate provides meaningful therapeutic benefit, particularly for knee osteoarthritis.
What is less widely known is chondroitin sulfate's role in skin health. As a glycosaminoglycan, chondroitin sulfate is a natural component of the skin's extracellular matrix. It attracts and retains water at the dermal level, supporting skin hydration, plumpness, and elasticity. Emerging research suggests oral chondroitin supplementation may benefit skin hydration and appearance, though this application is still in its early stages of clinical validation.
Most commercial chondroitin sulfate is extracted from shark cartilage or bovine trachea and sold as an isolated ingredient. Shark fin collagen peptide is unique in delivering chondroitin sulfate as a naturally co-occurring component within the collagen matrix — preserving the biological context in which these compounds function together in living tissue.
Kesennuma is a port city in Miyagi Prefecture, Japan, renowned as one of the country's premier shark fishing and processing centers. The city has a multi-generational tradition of sustainable shark utilization, with established processing infrastructure for shark fin, cartilage, liver oil (squalene), and meat products.
The raw material for this collagen peptide is sourced from blue sharks (Prionace glauca) — one of the most abundant shark species globally, classified as "Near Threatened" by IUCN but managed through regulated fisheries in Japan. The use of shark fins for collagen extraction represents a value-added utilization of byproducts from the established fishing industry, aligning with the manufacturer's mission of effective utilization of underutilized marine resources.
Japanese marine ingredient processing adheres to some of the world's strictest quality and safety standards. Nihon Yakuhin Co., Ltd., the manufacturer, maintains full traceability from raw material sourcing through final product testing, ensuring consistent quality across production batches.
This ingredient has been validated in commercial OEM formulation. In 2025, Iizuka Shoukai developed a custom "Collagen Premium" formula for a wellness brand in Southeast Asia, using shark fin collagen peptide as the core ingredient alongside phycocyanin powder, rose placenta extract, and Japanese ceramides. The resulting product had no direct market equivalent in the region — a genuine formulation differentiator that enabled premium positioning. The test order confirmed ingredient compatibility across all components, with commercial-scale production planned.
This case demonstrates that shark fin collagen peptide is not a theoretical ingredient — it is a proven, formulation-ready material with real-world OEM track record.
【1】Chondroitin sulfate is one of the most clinically studied joint health ingredients, with extensive meta-analyses supporting its efficacy in osteoarthritis symptom management and cartilage protection. It functions by inhibiting proteolytic enzymes (matrix metalloproteinases) that degrade cartilage, while stimulating proteoglycan and glycosaminoglycan synthesis in chondrocytes.
【2】Low-molecular-weight collagen peptides (2,000–5,000 Da) demonstrate superior intestinal absorption compared to higher-molecular-weight hydrolysates. Absorbed peptides have been detected in human blood plasma within 1–2 hours of oral ingestion, confirming bioavailability and tissue distribution to skin and joint tissues.
【3】Mucopolysaccharides (glycosaminoglycans including chondroitin sulfate, hyaluronic acid, and heparan sulfate) are critical components of the extracellular matrix in both skin and cartilage. Their polyanionic structure enables exceptional water-binding capacity — a fundamental mechanism for tissue hydration and mechanical resilience.
【4】The combination of collagen peptides with chondroitin sulfate in a single marine-derived ingredient represents a unique compositional profile. Standard marine collagen (from fish skin or scales), porcine collagen, and bovine collagen do not naturally contain chondroitin sulfate — this compound must be sourced and added separately in multi-ingredient formulations.
【5】OEM validation: Custom premium collagen formula developed for Southeast Asian market (2025) using shark fin collagen peptide as core ingredient, combined with phycocyanin, rose placenta extract, and Japanese ceramides. Test production confirmed full ingredient compatibility and unique market positioning.
Standard fish collagen (from skin or scales) is a pure protein hydrolysate — collagen peptides and nothing more. Shark fin collagen peptide naturally contains chondroitin sulfate and mucopolysaccharides alongside the collagen peptides. This triple composition is unique to shark fin origin and cannot be found in any porcine, bovine, or standard fish collagen product. The result is a single ingredient that supports both skin hydration and joint health — two functions that normally require separate ingredients in a formulation.
The average molecular weight is approximately 3,000 Daltons, with 70% of peptides below 3,000 Da. For comparison, standard gelatin is 100,000–200,000 Da. Lower molecular weight means the peptides can be absorbed intact through the intestinal barrier and delivered to target tissues — skin dermis and joint cartilage — where they stimulate fibroblast activity and endogenous collagen synthesis. At 3,000 Da, this product sits at the high-bioavailability end of the collagen peptide spectrum.
Halal, kosher, and GMP certification status should be confirmed directly with Iizuka Shoukai, as these certifications depend on specific production batch documentation from the manufacturer Nihon Yakuhin Co., Ltd. The ingredient is derived from blue shark (a fish species), which may be permissible under certain halal and kosher frameworks, but formal certification is recommended for products targeting these markets. Contact us for the latest certification documentation.
In 2025, this shark fin collagen peptide was used as the core ingredient in a custom Collagen Premium formula developed for a wellness brand in Southeast Asia. The formulation combined it with phycocyanin powder, rose placenta extract, and Japanese ceramides — creating a product with no direct market equivalent in the region. The test order confirmed full compatibility between all ingredients, and commercial-scale production is planned. This OEM case demonstrates the ingredient's proven formulation readiness.
