Nutranexa quality team reviewing specifications and COA documents

Quality & R&D

Quality You Can Review

Certificates, batch testing, and documents you can open and check — before you commit to a supplier.

Nutranexa laboratory analyst reviewing a phosphatidylserine powder sample beside analytical equipment
Quality control laboratory — sample review before release.

Our lab tests every released batch

The QC team runs batch testing with HPLC and evaporative light-scattering detection, alongside moisture, peroxide value, and microbiology analysis. A batch ships only after its results match the product specification.

Assay

Phosphatidylserine content tested against the batch specification.

Moisture

Water content control for powder stability and flow.

Peroxide value

Oxidation control on every released batch.

Acetone insoluble

Phospholipid fraction confirmation.

Heavy metals

Pb, As, Hg, Cd controlled per specification.

Microbiology

Plate count, coliforms, molds and yeasts, Salmonella.

Product documents & certificates

Open any document to review the actual record. Request current controlled copies matched to your quoted product and batch.

Company Verification →

Documents shown are supplied reference copies. Current validity, scope, and product applicability are confirmed with the controlled documents issued for your order.

Real batch COA data

Actual batch-specific results, including assay, moisture, peroxide value, heavy metals, and microbiology.

PS 20% Sunflower COA Sample

PS 20% Sunflower COA Sample

ProductPhosphatidylserine (Sunflower)
Product modelPP201
Lot No.C01520260103
Manufacture / test dateJan 8, 2026
Report dateJan 13, 2026
Test basisQB/T 5821-2023
Phosphatidylserine23.7 g/100g; standard >= 20
Moisture0.81 g/100g; standard <= 2.0
Peroxide value0.65 mmol/kg; standard <= 2.5
Acetone insoluble98.2 g/100g; standard >= 95.0
Pb / As / HgNot detected
Cd<0.003 mg/kg
SalmonellaNot detected

Sample COA data is batch-specific. Current batch COA should be confirmed before quotation or shipment.

View full COA sample
PS 50% COA Sample

PS 50% COA Sample

ProductPhosphatidylserine
Product modelPP501
Lot No.C00120260302
Manufacture / test dateMar 26, 2026
Report dateMar 31, 2026
Test basisQB/T 5821-2023
Phosphatidylserine53.2 g/100g; standard 50-60
Moisture0.89 g/100g; standard <= 2.0
Peroxide value1.05 mmol/kg; standard <= 2.5
Acetone insoluble98.1 g/100g; standard >= 95.0
Pb / As / HgNot detected
Cd<0.003 mg/kg
SalmonellaNot detected

Sample COA data is batch-specific. Current batch COA should be confirmed before quotation or shipment.

View full COA sample
PS 50% Sunflower COA Sample

PS 50% Sunflower COA Sample

ProductPhosphatidylserine (Sunflower)
Product modelPP501
Lot No.C01520251002
Manufacture / test dateOct 11, 2025
Report dateOct 16, 2025
Test basisQB/T 5821-2023
Phosphatidylserine54.2 g/100g; standard >= 50
Moisture0.69 g/100g; standard <= 2.0
Peroxide value0.85 mmol/kg; standard <= 2.5
Acetone insoluble98.2 g/100g; standard >= 95.0
Pb / As / HgNot detected
Cd<0.003 mg/kg
SalmonellaNot detected

Sample COA data is batch-specific. Current batch COA should be confirmed before quotation or shipment.

View full COA sample

Technical downloads

Specifications available for preliminary buyer review

These supplied files support initial evaluation. Request a current controlled version and matching batch COA before purchase or shipment.

Research & development

PS development at Nutranexa is supported by university cooperation and ongoing industry work.

Cooperation with East China University of Science and Technology
University cooperationPS development cooperation with East China University of Science and Technology.
Nutranexa phosphatidylserine exhibition booth
Industry presenceNutranexa PS team at industry exhibitions in China.

PS as a core ingredient since 2015

Nutranexa obtained its PS production license at the end of 2015 and has focused on phosphatidylserine development, testing, and application support since then — working with buyers across supplements and functional nutrition formats.

About Nutranexa →

Request the documents for your exact product

Share source, target grade, application, destination market, and annual volume — we will send the matching specification, COA, and certificates.

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