Fish collagen tripeptide, produced in Japan from farm-raised fish skin, with a specified minimum tripeptide content (at least 15% or 25%); the measured content is reported on every lot certificate of analysis. Manufacturer's recommended intake 1 g/day (15% grade) or 0.8 g/day (25% grade); no off-taste or off-odour by specification; allergen: contains fish.
Tell us what you are developing and which documents you need. We reply from Japan within one working day with the product specification, SDS and the CoA of the current lot.
The ingredient is made in Japan in an FDA-registered food facility by enzymatic hydrolysis of fish skin gelatin, then filtered, sterilised, spray-dried, sieved and passed through a metal detector. Controlled hydrolysis gives a high share of the Gly-X-Y tripeptide unit, which is measured on every lot by gel filtration chromatography.
Step 1 · raw material
Farm-raised fish skin
Step 2 · controlled
High share of Gly-X-Y tripeptides
Step 3 · clarification
Liquid hydrolysate
Step 4 · heat
Before drying
Step 5 · drying
Liquid to powder
Step 6 · sizing
Uniform powder
Step 7 · inspection
Before packing in 10 kg bags
The grade on this page. Other grades, where available, are specified on request.
Example lot values are published in the developer's guide below. They are an example, not a specification; your lot's CoA governs.
A Japanese trading company selling directly to brand owners and contract manufacturers. No distributor layer between you and the documents.
Every shipment travels with the Certificate of Analysis of its own lot, with the measured values and the full safety panel.
A small first order lets you run a pilot batch before committing to bulk. Larger volumes are quoted by volume and delivery terms.
For registered companies developing a product. Tell us the format you plan and we will say honestly what to expect.
After payment is received. Freight quoted on request. Specification and SDS before you order, CoA with the goods.
If you are comparing ingredients for a new SKU, these questions separate one material from another quickly.
What each component is, what the processing changes, and what published research on the raw material has examined. No health claims; references on request.
Many collagen ingredients are specified by average molecular weight. For supplement and functional-food formulators, that single number does not show how much of the powder is present as tripeptides - short chains of just three amino acids.
Fish Collagen Tripeptide is specified by its tripeptide share instead. Each grade has a specified minimum tripeptide content (at least 15% or at least 25%), and the certificate of analysis for each lot reports the measured tripeptide content. Tripeptide content is determined by gel filtration chromatography, a method that separates peptides by molecular size.
This page describes collagen tripeptide as a substance - what collagen is, the Gly-X-Y sequence and the Gly-Pro-Hyp (glycine-proline-hydroxyproline) triplet - with sources in the educational section below. Study outcomes are not summarised here. Claims for a finished product are the brand owner's responsibility under the rules of each market.
Two powder grades: tripeptide at least 15% and tripeptide at least 25%. Both are packed in a 10 kg kraft bag with a polyethylene inner bag.
Choose the grade by format, serving size, positioning and cost per serving.
Formats: capsules, tablets, stick packs and sachets, powdered drinks. A manufacturer's recommended intake of 1 g/day or less suits compact formats; confirm behaviour in your product in a bench test.
Manufactured in Japan in an FDA-registered food facility. Iizuka Shoukai supplies the ingredient to supplement and functional-food manufacturers in 10 kg bags, MOQ 1 kg per grade, from its warehouse in Takasaki, Gunma, Japan. Door-to-door delivery to the US is available on a quoted DAP/DDP basis.
Related ingredient: fish elastin peptide.
Request the specification, a sample and a current price quote for the grade that fits your application - we ship from Takasaki, Gunma, Japan.
Collagen is the most abundant protein in animals; in humans it makes up about one third of total protein and about three quarters of the dry weight of skin [1]. Every third amino acid in collagen is glycine, giving the repeating Gly-X-Y sequence found in all collagen types [1][2]. A collagen tripeptide is one such unit: three amino acids in the Gly-X-Y pattern, the smallest basic unit of collagen.
Collagen hydrolysates are typically characterised by average molecular weight, for example around 2,000 or 5,000 Da [3]. One example in our range is a collagen peptide of about 3,000 Da with chondroitin sulfate.
A single average molecular weight does not show how much of a product is present as tripeptides. "Collagen peptide" is a broad term for collagen hydrolysates, often specified by average molecular weight rather than by tripeptide content.
The research behind this section is structural: it defines collagen rather than testing a product. Gly-Pro-Hyp is the most common triplet in collagen (about 10.5% of triplets); about 22% of residues in human collagen are proline or hydroxyproline [1][2]. In the 25% grade of this ingredient, Gly-Pro-Hyp measured 3.6-4.1% in the manufacturer's analysis of five lots (reversed-phase chromatography, 2026); these are measured results, not a specification limit. The two figures are different measures: the first is a share of triplets in the collagen sequence, the second is the measured Gly-Pro-Hyp content of the powder.
The collagen comes from the skin of farm-raised fish and is processed in Japan. Fish is a declared allergen: label the finished product according to the fish allergen rules of your market.
The safety data sheet (25% grade) lists acute and chronic toxicity and mutagenicity tests performed on collagen tripeptide as a food material. Documents on request.
Store at room temperature away from direct sunlight, heat and humidity; keep away from moisture; reseal the bag after opening. Ships at ambient temperature. Shelf life: 3 years from the date of manufacture.
Start at the minimum order. Free sample. Specification, SDS and lot CoA on request.
Request a sample or quotationMany collagen ingredients are specified by average molecular weight. For supplement and functional-food formulators, that single number does not show how much of the powder is present as tripeptides - short chains of just three amino acids.
Fish Collagen Tripeptide is specified by its tripeptide share instead. Each grade has a specified minimum tripeptide content (at least 15% or at least 25%), and the certificate of analysis for each lot reports the measured tripeptide content. Tripeptide content is determined by gel filtration chromatography, a method that separates peptides by molecular size.
This page describes collagen tripeptide as a substance - what collagen is, the Gly-X-Y sequence and the Gly-Pro-Hyp (glycine-proline-hydroxyproline) triplet - with sources in the educational section below. Study outcomes are not summarised here. Claims for a finished product are the brand owner's responsibility under the rules of each market.
Two powder grades: tripeptide at least 15% and tripeptide at least 25%. Both are packed in a 10 kg kraft bag with a polyethylene inner bag.
Choose the grade by format, serving size, positioning and cost per serving.
Formats: capsules, tablets, stick packs and sachets, powdered drinks. A manufacturer's recommended intake of 1 g/day or less suits compact formats; confirm behaviour in your product in a bench test.
Manufactured in Japan in an FDA-registered food facility. Iizuka Shoukai supplies the ingredient to supplement and functional-food manufacturers in 10 kg bags, MOQ 1 kg per grade, from its warehouse in Takasaki, Gunma, Japan. Door-to-door delivery to the US is available on a quoted DAP/DDP basis.
Related ingredient: fish elastin peptide.
Request the specification, a sample and a current price quote for the grade that fits your application - we ship from Takasaki, Gunma, Japan.
Collagen is the most abundant protein in animals; in humans it makes up about one third of total protein and about three quarters of the dry weight of skin [1]. Every third amino acid in collagen is glycine, giving the repeating Gly-X-Y sequence found in all collagen types [1][2]. A collagen tripeptide is one such unit: three amino acids in the Gly-X-Y pattern, the smallest basic unit of collagen.
Collagen hydrolysates are typically characterised by average molecular weight, for example around 2,000 or 5,000 Da [3]. One example in our range is a collagen peptide of about 3,000 Da with chondroitin sulfate.
A single average molecular weight does not show how much of a product is present as tripeptides. "Collagen peptide" is a broad term for collagen hydrolysates, often specified by average molecular weight rather than by tripeptide content.
The research behind this section is structural: it defines collagen rather than testing a product. Gly-Pro-Hyp is the most common triplet in collagen (about 10.5% of triplets); about 22% of residues in human collagen are proline or hydroxyproline [1][2]. In the 25% grade of this ingredient, Gly-Pro-Hyp measured 3.6-4.1% in the manufacturer's analysis of five lots (reversed-phase chromatography, 2026); these are measured results, not a specification limit. The two figures are different measures: the first is a share of triplets in the collagen sequence, the second is the measured Gly-Pro-Hyp content of the powder.
The collagen comes from the skin of farm-raised fish and is processed in Japan. Fish is a declared allergen: label the finished product according to the fish allergen rules of your market.
The safety data sheet (25% grade) lists acute and chronic toxicity and mutagenicity tests performed on collagen tripeptide as a food material. Documents on request.
Store at room temperature away from direct sunlight, heat and humidity; keep away from moisture; reseal the bag after opening. Ships at ambient temperature. Shelf life: 3 years from the date of manufacture.
The difference is in how the powder is specified. Standard fish collagen peptide is a hydrolysate often specified by its average molecular weight rather than by tripeptide content. Fish Collagen Tripeptide is produced by controlled enzymatic hydrolysis for a high share of the three-amino-acid unit of collagen (Gly-X-Y) and specifies a minimum for the tripeptide fraction of at least 15% or at least 25% of the powder; each lot certificate reports the measured value. The manufacturer's recommended intake is 1 g/day for the 15% grade and 0.8 g/day for the 25% grade.
MOQ is 1 kg per grade per order; at that quantity the price is 180 USD/kg for the 15% grade and 400 USD/kg for the 25% grade. Volume pricing is on request, and freight is quoted on request; door-to-door delivery to the US is available on a quoted DAP/DDP basis. Free 100 g evaluation samples are available for registered businesses after company verification. Shelf life is 3 years from the date of manufacture, and each lot is supplied with a certificate of analysis.
Choose the grade by format, serving size, positioning and cost per serving. The manufacturer's recommended intake is 1 g/day for the 15% grade and 0.8 g/day for the 25% grade. Both grades are white to pale yellow powders with no off-taste or off-odour by specification. For the 25% grade, the specification, lot certificate of analysis and safety data sheet are available on request; 15% grade documents are also available on request.
Fish Collagen Tripeptide is produced in Japan from farm-raised fish skin, by enzymatic hydrolysis of fish skin gelatin. Fish species information is provided on request.
