Comprehensive Quality
Control System
We have established an integrated quality control system covering R&D, production, and testing for nutraceutical ingredients. Supported by a CNAS-accredited in-house laboratory and advanced manufacturing systems, we implement strict quality management protocols to ensure consistent product quality, batch-to-batch consistency, and reliable supply performance for global markets.
End-to-End Quality Control
From raw materials to final delivery, every batch is strictly controlled and tested to ensure consistent quality, safety, regulatory compliance, and full traceability.
01
Raw Material Inspection
All incoming raw materials are batch-inspected to ensure compliance with quality and safety standards. Testing includes identity, purity, and key contaminants such as microorganisms, heavy metals, and pesticide residues. Only qualified materials are released for production.
02
In-Process Quality Control
Product testing is performed to verify physical attributes such as weight, hardness, and dissolution, while environmental conditions-including temperature, humidity, air quality, and cleanliness-are controlled to maintain a stable and consistent manufacturing process.
03
Finished Product Testing
Finished product testing includes content and composition verification, microbiological safety, and key physicochemical parameters such as moisture, solubility, and impurities, with stability testing to confirm product stability during storage.
04
Documentation & Traceability
A comprehensive batch record system is maintained, covering raw material inspection, in-process testing, finished product testing, and COA documentation. All records support traceability, audits, customer verification, and regulatory compliance, ensuring data integrity.
05
Packaging & Sealing
Following quality release, all finished products are sealed in food-contact compliant packaging under controlled conditions to protect against moisture, oxidation, and external contamination, ensuring product stability during storage and distribution.
06
Logistics & Delivery
Product quality is preserved throughout storage, handling, and transportation under controlled conditions. Supported by established logistics partnerships and flexible shipping options, we ensure integrity and consistency from release to final delivery.
Key Testing Equipment
Our testing center is equipped with a range of advanced instruments to support precise analysis and quality verification of nutraceutical ingredients.
Atomic Absorption Spectrophotometer (AAS)
Gas Chromatography with Headspace (HS-GC)
Headspace Gas Chromatography with Flame Ionization Detector (HS-GC-FID)
High Performance Liquid Chromatography (HPLC)
Tapped Density Tester
Precision PH Meter
Forced Air Drying Oven
Vacuum Drying Oven
Ceramic Fiber Muffle Furnace
Stability Test Chamber
High-Temperature Chamber
HPLC Laboratory Room
Inside Our Testing Process
Each ingredient undergoes standardized testing across key quality parameters, including pH, active content, moisture, ash, density, and particle size, to ensure consistent and compliant results.
- pH Testing
- Active Content Analysis
- Moisture Analysis
- Ash Content Analysis
- Density Measurement
- Particle Size Analysis
Electrode Cleaning
Electrode Calibration
Sample PH Measurement
Sample Weighing
Sample Filtration
Sample Dissolution
Make-up to Volume
Instrumental Analysis
Moisture Content Testing (Oven Drying Method)
Oven Drying Moisture Analysis
Moisture Sample Weighing
Moisture Weighing Dish Preparation
Ash Content Testing (Muffle Furnace Method)
Sample Ash Content Analysis
Sample Carbonization (Pre-Ashing Step)
Crucible Weighing for Ash Testing
Sample Weighing
Graduated Cylinder Weighing
Density Measurement
Sieve Base Weighing
Sample Loading & Weighing
Manual Sieving for Particle Size Analysis
Post-Sieving Weighing and Particle Size Calculation
Accredited Laboratory & Third-Party Verification
Our quality is validated by CNAS-accredited laboratories and globally recognized third-party partners such as SGS and Eurofins, with comprehensive physical, chemical, and microbiological testing to ensure regulatory compliance.
CNAS-Accredited Laboratory
Third-Party Laboratory Verification
Our Certifications
Our products are certified to international standards, including ISO 9001, HACCP, Halal, and Kosher, supporting compliance and global market access.
Comprehensive Support for Your Business
Covering everything from quality testing and compliance through to OEM/ODM development and supply chain support, we provide end-to-end solutions to support your business growth.
Overseas Market & Regulatory Expertise
Backed by extensive global market experience and regulatory expertise in EU, U.S., and international markets, we support export compliance and documentation requirements.
Technical & Stability Support
Natural Field offers professional guidance on product usage, along with support for stability evaluation and application optimization.
Compliance Documentation
Complete documentation including COA, MSDS, and ISO certificates is available to support procurement compliance and reduce supply chain risks.
Custom Formula Development
We provide customized formulation design and development based on specific client requirements, supporting a wide range of applications and functional needs.
Supply Chain & Delivery
With a robust supply chain system and strong warehousing capabilities, we ensure stable raw material supply for both large-scale production and fast delivery requirements.
Rapid Response & Service Team
We ensure fast response to order inquiries and technical questions, improving communication efficiency and project execution.