B2B raw materials · Bulk ingredient supply
Bulk Collagen
多肽
Specialty Collagen, Protein & Peptide Ingredients
Explore bovine, marine and sea cucumber collagen peptides, alongside specialty collagen, membrane, protein and other peptide ingredients.
Find the material your formulation requires, review its product details and request specifications for your bulk purchase.
Our ingredient range
Explore Our Collagen, Protein & Peptide Ingredients
Compare the ingredient’s source and identity first. Open a product for its material profile and analytical specification.
膠原蛋白勝肽
Three source-specific collagen peptide ingredients. Review each product’s identity and specification before comparing grades.
Bovine Collagen Peptides Type I & III
Bovine-skin collagen peptide powder for supplement and nutrition formulations.
魚膠原蛋白肽
A codfish-skin-derived collagen ingredient for fish-source nutrition formulations.
海參膠原蛋白勝肽
Sea cucumber-derived collagen peptide powder with its own source and material identity.
Specialty Collagen & Membrane Ingredients
Type II collagen and eggshell membrane are distinct materials. Select by exact form and composition.
膠原蛋白 II 型粉末
A chicken-sternum-derived Type II collagen ingredient for oral supplement development.
蛋殼膜粉
A multi-component membrane powder for oral supplement formulation review.
Protein & Other Peptide Ingredients
Extend your formulation with source-defined proteins, elastin or keratin. Each has its own identity and is evaluated separately from collagen peptides.
隔離牛肉蛋白
Beef-derived protein isolate powder for protein-focused nutrition formulations.
牛骨清湯蛋白質
A beef bone broth protein ingredient for nutrition and food formulation projects.
雞骨濃湯蛋白質
Chicken bone broth protein powder for source-defined protein formulations.
鰹魚彈力蛋白肽
A fish-source elastin peptide ingredient for supplement and beauty nutrition development.
水解角蛋白勝肽
Hydrolyzed keratin peptide powder for nutritional product development.
Ingredient names, protein content and molecular-weight measurements describe different aspects of a material. Confirm the specification and current batch documents for the product selected.
From shortlist to formulation
Choose by Source, Composition & Formulation Fit
A useful collagen peptide sourcing brief goes beyond protein percentage. Compare identity, analytical basis and performance in your intended formulation.
01 / Source & identity
Start with the Exact Material
Confirm the species or raw material source, ingredient identity and relevant source declarations. Keep collagen peptides, Type II collagen, membrane powders, elastin, keratin and other proteins distinct in your purchasing specification.
02 / Composition & analytical basis
Compare Like-for-Like Results
Review protein, collagen, peptide content or other declared components using the applicable test methods and reporting basis. A protein result alone does not define every component of a multi-component ingredient.
03 / Molecular & physical profile
Define the Parameters You Need
Specify the molecular-weight measurement, particle size, density and powder-handling requirements relevant to the material. Distinguish an upper molecular-weight limit from an average or a distribution measurement.
04 / Formulation evaluation
Test in Your Intended Formula
Evaluate dispersion, dissolution, taste, odor, color and processing behavior in the finished format. Check ingredient loading, compatibility and packaging requirements before scaling up.
Source and grade affect material selection. Confirm hydrolysis status and ingredient form where relevant; technical or clinical results for another ingredient do not automatically apply to the selected product.
For sourcing and material approval
Specifications, COA & Sample Evaluation
For wholesale collagen peptides and related ingredient inquiries, identify the product and the documents your team needs to review.
Current specification & batch COA
Compare the offered grade, acceptance criteria, analytical methods and batch results with your purchasing standard.
Source & composition documents
List the origin, composition, allergen and other declarations required by your approval process. Availability is confirmed for the selected material.
Samples for formulation testing
Request sample availability and define the sensory, physical and processing tests needed for your formula.
Commercial supply requirements
Confirm order quantity, packaging, storage, lead time and delivery requirements for the exact ingredient and destination.
Procurement questions
Bulk Collagen Ingredient FAQs
Review the ingredient’s exact identity and specification before selecting a sample or requesting commercial supply.
Which bulk collagen peptides are included in this range?
The collagen peptide group includes bovine collagen peptides Type I & III, codfish-skin marine collagen peptides and sea cucumber collagen peptide. The wider directory also includes Type II collagen, eggshell membrane, beef protein isolate, two bone broth proteins, elastin peptide and hydrolyzed keratin peptide.
How do bovine, fish and sea cucumber collagen peptides differ?
They have different raw material sources. Compare each grade’s documented identity, composition, molecular profile, physical properties and source information, then evaluate sensory and processing performance in your formulation.
Are Type II collagen and eggshell membrane the same as collagen peptides?
They are separate ingredient listings requiring their own qualification. The Type II product is identified as chicken-sternum-derived collagen. Eggshell membrane powder is a multi-component material. Confirm the exact form and composition rather than assuming equivalence to a collagen peptide powder.
Are beef protein, keratin and elastin collagen ingredients?
These are presented separately as protein and other peptide ingredients. Review the documented identity of each material. Beef protein content does not by itself establish a collagen specification, and keratin and elastin have distinct ingredient identities.
What specifications and sample tests should I request?
Request identity, source, composition and the relevant molecular and physical parameters, together with contaminants and microbiological controls. For formulation trials, define the required mixing, dissolution, sensory and processing tests for your intended format.
How can I confirm MOQ, packaging, lead time and bulk pricing?
Send the ingredient name, required specification, quantity, application and delivery destination. List any sample or document requirements. Minimum order quantity, packaging, pricing, availability and lead time are confirmed for the specific inquiry.
Stay in touch
Request Ingredient Specifications & Pricing
Tell us the collagen, protein or peptide ingredient you need, together with the required specification, quantity and destination. Our team will review your sourcing requirements and discuss product information, samples and supply options.
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sales@collagensei.com