Bulk raw materials · B2B ingredient sourcing
Dietary Supplement
Ingredient Supplier
Source dietary supplement ingredients for supplement brands, contract manufacturers and ingredient procurement teams.
Explore vitamins, amino acids, botanical ingredients, sports nutrition, specialty ingredients, joint health and collagen-related proteins. Find your material and request product-specific specifications, documentation and pricing.
Browse our ingredient range
Explore Ingredient Categories
Start with a category to compare available product listings and selection criteria. Each category links to its ingredient range.
Vitamins
Vitamin powders, forms and derivatives for specification-led ingredient sourcing.
Amino Acids
Amino acids, related forms, NAC and creatine for supplement and nutrition formulations.
Herb & Botanical Ingredients
Explore the current acerola powder listing and review its source, composition and specification.
Sports Nutrition Ingredients
Plant proteins, plant and marine peptides, and fish gelatin for formulation review.
Specialty Ingredients
Specialty actives, nutritional oils and nutrition powders with distinct material specifications.
Joint Health Ingredients
Glucosamine, chondroitin, MSM and related ingredients, including defined vegan options.
Collagen, Protein & Peptide Ingredients
Collagen peptides, specialty collagen and membrane ingredients, bone broth proteins, elastin and keratin peptides.
Category images show representative ingredients. The linked category pages describe the full listed range; form, source, grade and supply conditions are confirmed for the selected material.
Supplement ingredient catalog
Find an Ingredient
Browse the full name directory or search by ingredient name and common abbreviation. Select a product to open its details.
No ingredients match this search. Try another name or category, or send your requirement for review.
Names and forms are listed individually. Specifications, current availability and documentation are confirmed for the exact material requested.
For qualification and purchasing
Specifications & Documentation
When evaluating a bulk supplement ingredients supplier, match the material and its supporting information to your purchasing requirements.
Exact identity & specification
Confirm the ingredient name, form, source and required analytical limits. Compare test methods and reporting basis where relevant.
Applicable batch COA
Request the relevant batch results and compare them with the specification used for approval. Product-page reference data should be reviewed with current documentation.
Source & supporting declarations
List the source, composition, allergen, vegan or other documents required by your team. Availability and scope are confirmed for the selected material.
Samples & commercial requirements
Share sample-testing needs, purchase quantity, packaging, delivery destination and timing so the request can be reviewed in context.
From requirement to quotation
A Clear Starting Point for Ingredient Sourcing
Align the product identity, technical information and commercial request before placing a bulk order.
01 / Define
Share the Requirement
Send the ingredient name or list, required form, specification, quantity, application and destination.
02 / Review
Review Material Information
Discuss the offered specification, available documents and sample requirements with your purchasing and formulation teams.
03 / Confirm
Confirm Commercial Details
Confirm product availability, minimum order quantity, packaging, pricing and lead time for the specific inquiry.
Need a finished supplement project? Explore our private label supplement services or powder manufacturing.
Procurement questions
Ingredient Sourcing FAQs
Find a category or ingredient, then send your technical and purchasing requirements for review.
Which dietary supplement ingredient categories are listed?
The current directory covers vitamins, amino acids, herb and botanical ingredients, sports nutrition ingredients, specialty ingredients, joint health ingredients, and collagen, protein and peptide ingredients. Each category links to its own product range.
How can I find a specific ingredient?
Use the name directory, search by product name or common abbreviation, or choose a category. Product names link directly to their detail pages. If you cannot find the material, send its exact name and specification for review.
Can I request specifications and a COA before ordering?
Include the ingredient, required form and documentation needs in your inquiry. Request the applicable specification and current batch COA for review against your purchasing requirements. Document availability and scope are confirmed for the selected material.
How are samples, MOQ and bulk pricing confirmed?
These are confirmed individually according to the ingredient, specification, quantity, destination and supply conditions. Include sample requirements, packaging preferences and the required schedule when requesting a quote.
Do you also support finished supplement manufacturing?
Finished supplement projects can be discussed through our manufacturing service pages. Specify whether you need raw material supply or a finished product, then include the dosage form, formula requirements, quantity and packaging needs.
Stay in touch
Request Specifications & Pricing
Tell us the ingredient name or list, required specification, quantity and destination. Our team will review your sourcing requirements and discuss the available product information and supply options.
Prefer email?
sales@collagensei.com