- Product Description
Premium Pterostilbene Powder – High-Bioavailability Stilbenoid for Advanced Nutraceutical Applications
Shaanxi Bolin Biotech Co., Ltd. was formed in 2012 and supplies Pharmaceutical Grade Pterostilbene Powder with 98% HPLC Tested purity. Our product is the result of our 25,800 acre GAP certified planting base and processed in ISO22000 compliant facilities to meet the key bioavailability difficulty facing the stilbenoid market. Thanks to a plasma half-life of 105 min and an oral bioavailability of about 80% (four times that of resveratrol), this dimethylated analogue ensures a much improved cellular absorption and a longer therapeutic activity. Our product is quality assured by way of six levels of screening including pesticide screening according to EU standards and is the preferred choice of formulators for use in nutritional supplements, cosmeceuticals and functional food applications.
What Is Pterostilbene Powder?
The result is a crystalline stilbenoid of exceptional purity with a chemical name of trans-3,5-dimethoxy-4'-hydroxystilbene (CAS 537-42-8). This natural polyphenol is a dimethylated derivative of resveratrol and occurs in trace concentrations in blueberries and heartwood of Pterocarpus marsupium.
The component overcomes a key industry problem: inadequate systemic retention. Our molecule has two methoxy groups at C-3 and C-5 locations, while conventional resveratrol is rapidly metabolised by Phase II enzymes. This structural change leads to the great increase in lipophilicity and membrane permeability.
Clinical results show about 80% oral bioavailability compared to 20% for conventional resveratrol. The long half-life allows for successful crossing of the blood-brain barrier and sustained plasma levels. This makes it an important raw ingredient for formulators that require accurate tissue dispersion and cell absorption.
Technical Specifications
| Parameter | Specification |
|---|---|
| CAS Number | 537-42-8 |
| Molecular Formula | C16H16O3 |
| Molecular Weight | 256.30 g/mol |
| Purity | ≥98% |
| Test Method | HPLC |
| Appearance | White to Light Yellow Powder |
| Solubility | Soluble in ethanol, DMSO |
| Moisture Content | ≤2.0% |
| Heavy Metals | ≤10ppm (EU Standard) |
| Microbial Limits | Total Plate Count <1000 cfu/g |
| Shelf Life | 24 months (proper storage) |
COA
|
Item |
Specification |
Result |
Method |
|
Assay |
≥99.0% |
99.54% |
HPLC |
|
Physicochemical Control |
|||
|
Appearance |
Fine powder |
Complies |
Sense |
|
Color |
White |
Complies |
Sense |
|
Odor&Taste |
Characteristic |
Complies |
Sense |
|
Loss on Drying |
≤5.0% |
0.09% |
GB5009.3 |
|
Ash |
≤5.0% |
0.21% |
GB5009.4 |
|
Particle Size |
95% pass 80 mesh |
Complies |
CP2020 |
|
Heavy Metals |
|||
|
Heavy Metals |
≤10ppm |
Complies |
CP2020 |
|
Pb |
≤3.0ppm |
Complies |
GB5009.12 |
|
As |
≤2.0ppm |
Complies |
GB5009.11 |
|
Hg |
≤0.1ppm |
Complies |
GB5009.17 |
|
Cd |
≤1.0ppm |
Complies |
GB5009.15 |
|
Microbiological Control |
|||
|
Total Plate Count |
≤1000cfu/g |
Complies |
GB4789.2 |
|
Mold & Yeast |
≤100 cfu/g |
Complies |
GB4789.15 |
|
E. Coli |
Negative |
Complies |
GB4789.38 |
|
Salmonella |
Negative |
Complies |
GB4789.4 |
|
Conclusion : Conform with Specification |
|||
Core Applications Across Industries
Nutraceuticals and Dietary Supplements
The global longevity market requires active substances with proven efficacy. Our product is the active ingredient in antioxidant support, cognitive health and metabolic regulation capsules, tablets and soft gels. It's often found in high-end formulas with NAD+ precursors and coenzyme Q10.
Cosmeceuticals & Anti-Aging Skincare
That's why high-end beauty products use this ingredient for its anti-photoaging and soothing repair benefits. In serums, creams and sunscreens, it provides powerful antioxidant protection, supports the skin barrier and reduces signs of oxidative stress.
Functional Foods & Fortified Beverages
Manufacturers of nutrition bars, meal replacements, and enhanced drinks use microencapsulated versions to improve stability. It is able to cope with standard food processing temperatures and still keep its bioactive strength.
Pharmaceutical Research & Development
It is used by research organisations as a lead molecule for pre-clinical studies in neuroprotection, anti-inflammatory pathways and Sirtuin activation. Its use as a pharmacological intermediate is growing in the research of metabolic disorders.

Why Bolin Biotechnology Stands Apart?

Supply Chain Vertical Integration
We have an 800-species planting base with seed-to-shipment traceability. Prior to processing, the raw material is tested for heavy metals, pesticide testing (EU requirements), and microbial safety testing.
Advanced Extraction Technology
Two state-of-the-art facilities built in 2015 and 2024 utilise closed-loop sustainable technology and precision automation. We extract using procedures that preserve the integrity of the active compounds and achieve pharmaceutical-grade purity levels.


Strict Six-Step Testing Process
Each batch is analysed by HPLC/UPLC for active ingredient quantity, and suppliers are third-party verified and audited. This ensures that the quality of the product is uniform and that it meets the requirements of the regulations in all of the worldwide markets.
Full OEM Services
We support finished product makers with unique formulations in powders, capsules, tablets and gummies. Flexible packaging choices for small quantities and private label needs, with full branding support including logo and package design.

Stability & Storage Recommendations
To protect the quality of the product, store Pterostilbene Powder in sealed containers, away from light, moisture and oxidising chemicals. Storage conditions: Store below 25°C. Store in a dry place, relative humidity not more than 60%. The substance stays potent for 24 months when stored appropriately.
Microencapsulation or lipid-based delivery systems may be an option for formulation applications to improve stability in aquatic settings. Our R&D team can advise you on the best way to include it technically depending on what you want to make.
FAQ
Q: What makes pterostilbene more effective than resveratrol?
A: The two methoxy groups in our product structure significantly enhance lipophilicity and metabolic stability. This results in four times greater bioavailability and a seven-fold longer plasma half-life, ensuring better tissue distribution and cellular uptake.
Q: Can this ingredient be used in food applications?
A: Yes. While regulations vary by region, our product is commonly incorporated into functional foods, beverages, and dietary supplements. We provide documentation supporting GRAS status inquiries and can assist with regulatory compliance for your target markets.
Q: What is the recommended dosage for supplement formulations?
A: Research studies typically utilize 50-250mg daily doses. Optimal amounts depend on intended health claims and target demographics. Our technical team offers formulation guidance based on current clinical literature and market positioning.
Q: Do you provide samples for testing?
A: We supply analytical samples (100g minimum) for qualified manufacturers conducting formulation trials. Contact our team with your project requirements and intended application for sample request procedures.
Q: What certifications does your facility hold?
A: Our production sites maintain ISO22000, cGMP, HACCP, KOSHER, and HALAL certifications. All products undergo verification by SGS and other internationally recognized third-party testing organizations.
Partner With a Trusted Supplier
Ready to formulate with premium Pterostilbene Powder? Contact our technical team at sales1@bovlin.com for product specifications, COA documentation, and custom formulation support.














