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Polygonum Cuspidatum Extract: Nature's Powerhouse of Resveratrol
Polygonum Cuspidatum Extract, also known by its botanical name and common aliases like Japanese Knotweed Root Extract or the traditional Chinese medicine name Huzhang, is a botanical powerhouse valued for its exceptionally high concentration of the active compound, resveratrol. This potent polyphenol is the core reason for the extract's significant recognition and broad application in the health and wellness, nutraceutical, and cosmetic industries.
At the heart of Polygonum Cuspidatum Extract's benefits lies resveratrol. This naturally occurring compound is a type of stilbenoid, widely studied for its remarkable properties. Scientifically, resveratrol is celebrated primarily as a powerful antioxidant. Its function is to combat oxidative stress by neutralizing free radicals, which are known to contribute to cellular aging and various health issues. Furthermore, research has highlighted its anti-inflammatory and potential neuroprotective effects, suggesting roles in supporting cardiovascular health, enhancing cognitive function, and contributing to overall anti-aging protocols. The high standardization of trans-resveratrol, the most biologically active form, is what drives the efficacy of premium Polygonum Cuspidatum extracts.
The market for Polygonum Cuspidatum Extract is experiencing robust growth. As awareness of resveratrol's potential for anti-aging and chronic disease prevention rises, so does the demand for high-quality, standardized extracts. It has cemented its position as a key ingredient in dietary supplements targeting healthy aging and vitality, and is increasingly incorporated into premium skincare products for its antioxidant and skin-soothing capabilities. To succeed in this competitive landscape, offering extracts with guaranteed purity and trans-resveratrol concentration is paramount, as industry and consumers alike seek verifiable potency.
Our Polygonum Cuspidatum Extract is subject to stringent quality control, ensuring maximum standardization of trans-Resveratrol purity. We go beyond mere concentration by employing advanced, clean-label extraction techniques, which guarantees a high-potency, consistent ingredient that maintains the integrity of the natural source while being free from unwanted contaminants.
 |
 |
| Resveratrol 98% | Resveratrol 50% |
Why our Polygonum Cuspidatum Extract?
1. Purity Benchmark,Guaranteed Ultra-Low Emodin Content
While the raw root naturally contains anthraquinones like Emodin, which can cause adverse digestive effects, our proprietary, advanced purification techniques consistently ensure Emodin levels are minimized, typically below 0.1%. This results in a cleaner, safer ingredient that eliminates a common formulation challenge and improves consumer tolerance, enhancing your product's reputation.
2. Maximum Bioactivity,Guaranteed High trans-Resveratrol Concentration
We go beyond generic standardization. Our extract is guaranteed to contain a minimum of 98% trans-Resveratrol. Since trans-Resveratrol is the most biologically active and well-researched isomer, this high purity provides a guaranteed potency and therapeutic efficacy, ensuring your finished product claims are scientifically robust.
3. Enhanced Application Flexibility with Soluble Grades
For manufacturers looking to innovate, we offer specialized, water-soluble grades of our Polygonum Cuspidatum Extract/Resveratrol. This critical feature allows for the successful formulation of complex dosage forms, such as liquid beverages, functional foods, and highly sought-after transparent cosmetic serums, providing product development options that are impossible with standard, poorly soluble extracts.
4. Competitive Advantage Through Integrated OEM Expertise
Our two decades of experience are fully integrated into our OEM service. We leverage our precise knowledge of the extract's characteristics (like stability and solubility) to rapidly and expertly optimize your final formulation. This is resveratrol-specific R&D, ensuring your product is manufactured efficiently and effectively from day one.
COA
|
Test Item |
Specification |
Result |
Method |
Reference Standard |
|
Appearance |
White to off-white powder |
White powder |
Visual |
In-house SOP |
|
Identification (HPLC) |
Match with reference |
Complies |
HPLC |
USP/EP |
|
Assay (Resveratrol) |
98.0% - 102.0% |
98.5% |
HPLC |
USP/EP |
|
Moisture Content |
≤ 2.0% |
1.2% |
Karl Fischer |
USP/EP |
|
Heavy Metals (as Pb) |
≤ 10 ppm |
< 5 ppm |
ICP-MS |
USP/EP |
|
Arsenic (As) |
≤ 2 ppm |
< 1 ppm |
ICP-MS |
USP/EP |
|
Residual Solvents |
≤ 1000 ppm |
< 50 ppm |
GC |
USP/EP |
|
Total Plate Count |
≤ 1000 CFU/g |
120 CFU/g |
Microbial Test |
USP/EP |
|
Yeast & Mold |
≤ 100 CFU/g |
< 10 CFU/g |
Microbial Test |
USP/EP |
|
E. coli |
Negative |
Negative |
Microbial Test |
USP/EP |
|
Salmonella |
Negative |
Negative |
Microbial Test |
USP/EP |
|
Particle Size (D90) |
≤ 100 µm |
85 µm |
Laser Diffraction |
In-house SOP |
|
Loss on Drying |
≤ 2.0% |
1.5% |
Gravimetric |
USP/EP |
|
Related Substances |
≤ 1.0% |
0.8% |
HPLC |
USP/EP |
|
Purity (HPLC) |
≥ 98.0% |
98.5% |
HPLC |
USP/EP |
Common Applications of Polygonum Cuspidatum Extract Powder
1. Skincare
Anti-aging, anti-inflammatory, and UV protection.
Reduces wrinkles, soothes irritation, and protects from UV damage.
2. Supplements
Supports cardiovascular health, immune function, and liver detox.
Boosts antioxidant levels for overall wellness.
3. Functional Foods
Supports joint health and combats oxidative stress.
Adds antioxidant benefits to functional foods and beverages.
Recommended Usage
1. Skincare: 0.5% to 3%
2. Supplements: 100 mg to 500 mg per serving
3. Functional Foods: 0.5% to 2%
Potential Issues & Solutions
1. Stability
Issue: Sensitivity to light, heat, and oxygen.
Solution: Store in cool, dark places and use airtight packaging.
2. Skin Sensitivity
Issue: Possible irritation at high concentrations.
Solution: Start with lower concentrations (0.5%) and conduct patch testing.
3. Bioavailability
Issue: Low natural absorption.
Solution: Combine with ingredients like Piperine to enhance absorption.
Bulk Resveratrol Supplier & OEM Partner
Ready to elevate your product line with a verified, high-ppurity ingredient? Partner with us, your trusted Bulk Resveratrol Supplier and expert OEM/ODM Manufacturer. Leveraging nearly 20 years of extraction expertise, we offer Polygonum Cuspidatum Extract with our distinct advantage: guaranteed ultra-low Emodin content and a certified minimum of 98% trans-Resveratrol. We simplify your supply chain by providing necessary certifications-including ISO, cGMP, and Kosher-and offer tailored solutions from ingredient supply to full-scale product manufacturing. Start your next project with confidence and quality. Contact us today to discuss your large volume orders: sales@botanicalcube.com.
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