Products Description
L‑Arginine HCl (CAS 1119‑34‑2), also known as L‑Arginine monohydrochloride, is the hydrochloride salt form of conditionally‑essential L‑Arginine amino acid. As a highly water‑soluble functional amino‑acid raw material, it serves global formulators across nutraceutical, personal‑care, food processing and animal nutrition sectors.
Different from free‑base L‑Arginine, this hydrochloride variant delivers improved water solubility, stable pH profile and minimized risk of agglomeration during long‑term storage. Acting as a key substrate for endothelial nitric oxide synthase (eNOS), it participates in urea‑cycle ammonia clearance, supports tissue rebuilding and collagen synthesis, and assists peripheral blood‑flow modulation.
Our plant executes full‑process quality management complying with USP, EP and JP monograph requirements. Each production batch undergoes multi‑stage impurity screening covering heavy‑element limits, residual salts and microbiological indicators. It is well‑suited for bulk procurement by sports‑nutrition brands, cosmetic manufacturers, food additive producers and health‑product distributors worldwide. Vegan‑friendly with zero animal‑derived inputs, this powder fits plant‑based finished‑product pipelines without allergen concerns.
Technical Specification
All batches are supported with full COA lab test report, stable quality for long-term bulk order cooperation:
| Item | Standard |
|---|---|
| Assay (dry basis) | ≥98.5% |
| Specific Rotation [α]D20 | +21.5° to +23.5° |
| Light Transmittance | ≥98.0% |
| Chloride (Cl⁻) | 16.5–17.1% |
| Ammonium Salt | ≤0.02% |
| Sulfate | ≤0.02% |
| Iron | ≤10 ppm |
| Heavy Metals | ≤10 ppm |
| Arsenic | ≤1 ppm |
| Other Amino Acids | ≤0.20% |
| Loss on Drying | ≤0.20% |
| Ignition Residue | ≤0.10% |
| Total Aerobic Microbial Count | ≤500 CFU/g |
| Yeast & Mold | ≤50 CFU/g |
| Molecular Formula | C₆H₁₄N₄O₂·HCl |
| Molecular Weight | 210.66 g/mol |
| Melting Point | Approx. 222°C |
| Appearance | White to almost white crystalline powder |
Safety Profile & Usage Precautions
L‑Arginine HCl is generally recognized as safe for oral and topical use within recommended dosage ranges.
-
Acute oral toxicity: LD₅₀ >2000 mg/kg in rodents.
-
Not classified as hazardous under GHS; no explosive, oxidizing, or flammable properties.
-
Persons with hypotension, active herpes outbreaks, or renal impairment should consult a healthcare provider prior to use.
-
May interact with antihypertensives, nitrates, or anti‑platelet medications; medical supervision advised.
-
Keep out of reach of children. Store in dry, cool conditions.
Certifications & Quality Documents
- Certificate of Analysis (CoA) per batch
- MSDS (Material Safety Data Sheet)
- USP/EP/JP compliance statement
- GMP manufacturing certificate
- Microbial test report
- Heavy metal & elemental impurity report

Application
Our bulk L‑Arginine HCl powder supports diverse formulation scenarios for international buyers:
- Sports Nutrition Raw Material: Core ingredient for pre‑workout blends, post‑exercise recovery powders and capsule formulas. Supports athletic‑performance‑oriented finished goods for human circulation support.
- Cardiac & Circulatory‑Focused Dietary Supplements: Used in daily oral supplement formulations targeting circulatory wellness for adult consumers.
- Men's Wellness Supplement Formulations: Functional raw material for non‑therapeutic finished products focused on microcirculation support.
- Cosmetic & Skin‑Care Manufacturing: Topical skin‑conditioning component incorporated into leave‑on creams, body lotions and rinse‑off cleansing preparations.
- Functional Food & Beverage Fortification: Water‑compatible food additive compliant with international food safety standards, ideal for liquid drinks, solid food fortification projects.
- Pet & Companion‑Animal Nutrition Additive: Custom‑blend raw material for pet nutritional formulas, supporting cartilage maintenance and animal growth nutrition.
Why Choose Our L-Arginine HCl Powder Factory?
- Consistent High‑Grade Purity: Advanced purification workflow guarantees ≥98.5 % assay value; tight controls over heavy‑metal, sulphate and ammonium‑salt impurities avoid batch‑to‑batch fluctuation.
- Excellent Dissolution & Storage Stability: Hydrochloride‑salt structure enables rapid full dissolution in water; low caking tendency for long‑term warehouse storage.
- Strict Microbiological Control: Low bioburden production meets global food, cosmetic and supplement standards, removing extra third‑party sterilisation workload for formulators.
- Complete Compliance Document Set: Batch‑wise COA, MSDS, USP/EP/JP conformity statement, GMP manufacturing certification, heavy‑metal and microbial inspection reports to satisfy customs clearance across EU, North‑America and Asian markets.
- Flexible Packaging & Order Threshold: Sample‑sized 1 kg bag options for lab testing; standard export‑grade 25 kg drum packaging. Custom private‑label packaging solutions are available upon request.
- Dependable Global Logistics Support: Production finished within 7 working days post‑order confirmation; we coordinate courier, air‑freight and sea‑freight solutions to match your shipment weight and timeline requirements.
- Technical Formulation Guidance: Our technical team offers formulation advice for finished‑product manufacturers to adjust dosage and compatibility within your formula matrix.
- Vegan‑Certifiable Raw Source: 100 % animal‑free feedstock, fully compatible with vegetarian and plant‑oriented supplement series.
OEM Service
We deliver end‑to‑end OEM & customisation solutions for brand owners, finished‑goods factories and formulation labs purchasing bulk L‑Arginine HCl:
- Custom Packaging Service: Bespoke private‑label outer bags, drum labelling and pallet configuration. We support small‑batch trial packaging and large‑volume export packaging according to your brand specifications.
- Blending & Premix Customisation: We can co‑blend L‑Arginine HCl with other amino‑acids, vitamins or functional ingredients as per your formula sheet to deliver ready‑to‑use premix powder.
- Specification Adjustment Support: Subject to production feasibility, we adjust particle‑size profile for improved flowability for capsule‑filling or instant‑drink application scenarios.
- Documentation Customisation: We can tailor commercial invoices, packing lists and compliance papers to satisfy destination‑country import authority requirements.
- Sample for R&D Validation: Small‑quantity trial samples are provided for your lab formulation testing and stability validation before formal bulk order placement.
- Project‑based Technical Support: Our application team provides compatibility feedback, storage guidance and dosage reference data to accelerate your new‑product development cycle.

Frequently Asked Questions
Q1: What key practical differences exist between L‑Arginine base powder versus L‑Arginine HCl?
A: L‑Arginine HCl is the hydrochloric‑acid salt derivative. It features far superior water solubility, neutralised pH and better storage stability. Free‑base arginine carries alkaline pH and weaker dissolution performance, making HCl form more suitable for liquid supplements and cosmetic topical formulas.
Q2: What dosage references should formulators follow for finished consumer goods?
A: General adult daily reference dosage sits between 2 g‑6 g. For sports‑nutrition lines, split daily serving can reach up to maximum 8 g for adult users. All final product labelling should follow local regional regulatory requirements.
Q3: What shelf‑life can I expect for bulk L‑Arginine HCl under proper warehouse storage?
A: Under cool, dry and sealed storage conditions away from direct sunlight, the shelf‑life of our bulk powder reaches 24 months from manufacturing date. Avoid high‑humidity environment to prevent possible caking.
Q4: Is this L‑Arginine HCl suitable for cosmetic topical formula development? Are there any formulation notes?
A: Yes, it works as skin‑conditioning ingredient for leave‑on and rinse‑off personal‑care items. Formulators should test pH compatibility within your formula matrix; avoid pairing with strongly acidic raw‑material components without pre‑test.
Q5: Can you provide pre‑shipment COA for our quality review before goods dispatch?
A: Absolutely. We send batch‑wise COA for your inspection prior shipment so your quality team can verify assay, heavy‑metal and microbial parameters ahead of goods arrival.
Q6: What is your MOQ for bulk L‑Arginine HCl powder? Do you accept trial‑size orders?
A: Our minimum order starts at 1 kg for sample trial. For formal bulk export orders, standard lot is 25 kg. We support small trial batches for new‑product R&D projects.
Q7: Which customs‑clearance documents can you supply for US and EU market import?
A: We provide batch‑specific COA, MSDS, GMP manufacturing certificate, USP/EP/JP compliance statement, heavy‑metal test report and microbial inspection report. Additional documents can be discussed based on your local customs requirement.
Q8: What precautions should be noted for finished‑product labelling when selling L‑Arginine HCl supplements?
A: Avoid unauthorised therapeutic or medical‑treatment claims on product packaging. You need to comply with local nutraceutical regulatory rules for dosage statement, warning text for vulnerable groups including hypotension patients and people with renal conditions.
Global Delivery & Shipping Solution

Packaging and 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
Delivery Methods
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


Hot Tags: L‑Arginine HCl Powder, China L‑Arginine HCl Powder manufacturers, suppliers, factory, amino acids for pet health, amino acids for cartilage repair, amino acids for quality control, amino acids for adolescent development, amino acids in oligomeric form, amino acids with custom specifications











