Ajinomoto Co., Inc.
Ajinomoto Co., Inc. is a Japanese multinational headquartered in Chuo-ku, Tokyo, and the world's leading producer of amino acids. Founded in 1909, Ajinomoto pioneered fermentation-based amino acid manufacturing in the 1950s and holds over 130 patents in the field. Their AjiPure brand supplies pharmaceutical and supplement-grade amino acids produced exclusively from natural vegetable-based carbohydrates via fermentation. No animal-derived raw materials are used. Key amino acid products include L-Leucine, L-Glutamine, L-Arginine, L-Tyrosine, Glycine, and L-Phenylalanine. Ajinomoto operates manufacturing facilities in Japan, the United States, Europe, and India, with over 110 years of amino acid research.
Tokyo, Japan
Directory Listing · Records Reviewed
Public records and independent sources have been reviewed.
What this means →- MOQMOQ (Minimum Order Quantity)The smallest production run a manufacturer will accept for an order.
- Not publicly disclosed
- LEAD TIMELead TimeThe time from order placement to finished product delivery.
- Not publicly disclosed
§1Editorial assessment
Ajinomoto Co., Inc. is a Japanese multinational headquartered in Chuo-ku, Tokyo, and the world's leading producer of amino acids. Founded in 1909, Ajinomoto pioneered fermentation-based amino acid manufacturing in the 1950s and holds over 130 patents in the field. Their AjiPure brand supplies pharmaceutical and supplement-grade amino acids produced exclusively from natural vegetable-based carbohydrates via fermentation. No animal-derived raw materials are used. Key amino acid products include L-Leucine, L-Glutamine, L-Arginine, L-Tyrosine, Glycine, and L-Phenylalanine. Ajinomoto operates manufacturing facilities in Japan, the United States, Europe, and India, with over 110 years of amino acid research.
§2Our review
The six checks in our review, applied before any name appears in the directory. Each check is auto-derived from public evidence on this profile.
§3Inspection history
§4Certifications
Certification verification in progress. International supplier records require regional database lookups (EudraGMDP, Health Canada NHP, FSSC public register, JHFA directory). See our methodology.
§5Capability matrix
- PRODUCT TYPES
- AjiPure Amino Acids (Fermentation-Based) · L-Leucine · L-Glutamine · L-Arginine · L-Tyrosine · Glycine · L-Phenylalanine · Branched-Chain Amino Acids (BCAAs)
- CAPABILITIES
- Fermentation-Based Amino Acid Manufacturing · Pharmaceutical and Supplement Grade Production · US Manufacturing Facilities · Clinical Research Support (110+ Years) · Branded Ingredient Supply (AjiPure) · Vegetable-Based Raw Materials Only
§6Sources
- AjiPure Official Website(2026-04-02)
- Ajinomoto Health & Nutrition North America(2026-04-02)
Dietary supplement manufacturers must comply with 21 CFR Part 111 (Current Good Manufacturing Practice for dietary supplements). This includes requirements for personnel, facilities, equipment, production, laboratory operations, and record-keeping.
What We Couldn't Verify
- Headquarters in Tokyo, Japan; manufacturing across multiple countries including US
- Very large conglomerate. Amino acids for supplements are one product line among many
- Specific US manufacturing facility location for supplement-grade amino acids not confirmed
- Certification details beyond cGMP not independently verified from public databases
Last reviewed: April 2, 2026
Disclosures
- No material connection exists between Inventory Ready and this company
For the check-by-check breakdown that produces this vendor's score, see our scoring framework. The connection map between Ajinomoto Co., Inc. and other vendors, capabilities, and certifications is in the manufacturer atlas.
Our Evaluation Method
Every manufacturer assessment follows six principles:
- Evidence: Claims backed by documentation, not marketing copy
- Freshness: Information reviewed and dated within the last 12 months
- Provenance: Sources cited for every key claim
- Challenge: Inconsistencies flagged, not hidden
- Disclosure: Material connections stated directly on affected listings
- Abstention: When we can't assess, we say so explicitly
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