Products Description

L-Glutamic acid is an acidic α-amino acid with two carboxyl groups and one amino group in its molecular structure. It is biosynthetically produced via microbial fermentation of plant-derived starch raw materials, featuring stable molecular configuration and high natural bioavailability.
As a core intermediate in the tricarboxylic acid cycle, it participates in mammalian protein anabolism and nitrogen metabolism circulation. It acts as a key excitatory neurotransmitter precursor in neural tissue and serves as a natural umami substrate in food systems. In cosmetic formulations, it regulates skin osmotic pressure and maintains stratum corneum moisture balance; in pharmaceutical applications, it participates in ammonia metabolism to assist liver metabolic regulation. The product adopts strict fermentation and purification processes, with stable optical rotation and low impurity residue, complying with global food, cosmetic and pharmaceutical raw material standards.
Technical Specification
| Inspection Item | Standard Requirement | Test Method |
|---|---|---|
| Assay Content | ≥98.5% | HPLC |
| Specific Rotation [α]D20 | +31.5° ~ +32.5° | Polarimeter |
| Light Transmittance | ≥98.0% | Spectrophotometer |
| Chloride | ≤0.02% | Titration Method |
| Ammonium Salt | ≤0.02% | Colorimetric Method |
| Sulfate | ≤0.02% | Colorimetric Method |
| Iron | ≤5 PPM | Atomic Absorption |
| Heavy Metals | ≤10 PPM | Atomic Absorption |
| Arsenic | ≤1 PPM | Atomic Fluorescence |
| Other Amino Acids | ≤0.50% | Amino Acid Analyzer |
| Loss on Drying | ≤0.50% | Gravimetric Method |
| Residue on Ignition | ≤0.10% | Gravimetric Method |
| Total Plate Count | ≤500 CFU/g | Microbiological Detection |
| Mold & Yeast | ≤50 CFU/g | Microbiological Detection |
Safety Profile
- Regulatory Compliance: Complies with FCC, USP, Ph.Eur, GB 1886.306-2020, INS E620 standard; approved by FDA, EU Food Safety Authority.
- Irritation & Toxicity: Non-irritating to skin and eyes under normal dosage; no acute toxicity, chronic toxicity or mutagenicity confirmed.
- Residue Control: Heavy metals, arsenic and microbial indexes are strictly limited within international safe thresholds, no harmful residual substances.
- Usage Safety: Safe for daily food addition, cosmetic topical use and feed addition; prohibited for excessive high-dose oral use in special crowds.
- Certification Support: Available with ISO22000, HACCP, HALAL, KOSHER, SGS, COA, MSDS official certificates; each batch provides third-party test reports.
Applications
-
Food Industry
Limited use as natural umami enhancer (E620) in condiments, snacks, instant food; dosage: 0.1-0.5g/kg, follow GB2760 standard.
Prohibited for infant formula and special medical food raw materials.
-
Pharmaceutical Industry
Exclusively used as raw material for hepatic coma adjuvant drugs and biochemical reagents; only for pharmaceutical factory formula production, not direct civilian use.
-
Cosmetic & Skincare Industry
Used in cream, serum, mask formulas for moisturizing and elasticity improvement; addition ratio: 0.5%-2%, only for external skin use, avoid eye contact.
-
Feed & Animal Nutrition
Added to livestock and pet feed to promote growth and nutrient absorption; maximum addition: 1.2g/kg feed, comply with GB7300.1001 standard.
-
Industrial & Textile Industry
Limited to biochemical synthesis, textile dyeing auxiliary and daily chemical raw material synthesis; not allowed to be mixed with hazardous chemicals.
-
Sports Nutrition
Used in protein powder and energy drinks for muscle metabolism regulation; daily intake ≤3g/person.
Why Choose Us
- Strict Quality Control: Factory follows GMP food production standards, equipped with 100,000-class clean workshops; every link from raw material screening, fermentation, purification to packaging undergoes 3-round full inspection.
- Customized Service: Support customized purity, mesh size and packaging; provide one-stop OEM/ODM processing for startup brands and mature enterprises.
- Complete Certification: Full set of international valid certificates (ISO22000/HACCP/HALAL/KOSHER/SGS/FDA) are available to meet global customs clearance and market access requirements.
- Stable Supply & Fast Delivery: Spot inventory of 500+ tons, bulk order lead time 7-15 working days; support FOB/CIF/DDP global shipping.
- Professional R&D Team: Senior biochemical R&D engineers provide formula technical support, help customers reduce production costs and shorten time-to-market.
- Low MOQ Support: MOQ starts from 25kg, support sample order for quality testing before bulk cooperation.
Delivery and shipping service

Storage: Store in a dry, cool, and well-ventilated place.
Packaging: 1 kg/bag, 25 kg/drum
Delivery Time: 7 days after order placement
1.Express Delivery
3-5 days for shipments under 100 kg
Door-to-door service
2.Ocean Freight
Over 300 kg: Approximately 30 days. Port-to-port service requires a professional customs clearance agent.
3.Air Freight
100kg-1000kg, 5-7 days
Airport-to-airport service, requires a professional customs clearance agent

Frequently Asked Questions
What certifications can you provide?
-
We can offer COA, MSDS, SGS, ISO22000, HACCP, HALAL, KOSHER and FDA qualification certificates.
Is L-Glutamic Acid safe for cosmetic and food use?
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Yes, it is non-toxic and non-irritating, complies with global food and cosmetic safety standards when used in specified dosage.
What is the lead time for bulk orders?
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Sample order within 3 working days, bulk order 7-15 working days based on order quantity.
Can L-Glutamic Acid be used for skin care products?
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Yes, it has moisturizing and skin texture improving effects, recommended addition ratio 0.5%-2%.
Do you support customized technical specifications?
-
Yes, we can adjust specific rotation, mesh size and microbial indicators according to customer requirements.

Send inquiry or contact us to get free sample, and learn more details about it.
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