Can I get free samples?

Yes, 10-20g free samples are available for evaluation.

What is the shelf life of the product?

The shelf life is 2 years if sealed and stored properly away from moisture and sunlight.

Is OEM or ODM service available?

Yes, both OEM and ODM services are available, including customization from samples and designs.

Comext Natural 99% Trans-Resveratrol Powder Resveratrol Capsules Polygonum Cuspidatum Root Extract

Name: Comext Natural 99% Trans-Resveratrol Powder Resveratrol Capsules Polygonum Cuspidatum Root Extract
Brand: Changsha Comext Biotech Co., Ltd.
SKU: 1995888742

Hunan, ChinaChangsha Comext Biotech Co., Ltd.

US$20.00-199.00

1 KG

Sample price:US$20.00/bag.Request sample

Product profile

Customization

Available

Certification

ISO, Kosher, Halal, Organic, Fssc

Assay Method

HPLC

Model NO.

Resveratrol Polygonum Cuspidatum Extract

Application Form

Lotion, Tablet, Capsule

Application

Food, Health Care Products, Medicine

State

Powder

Extract Source

Rhizome

Botanical Name

Polygonum Cuspidatum

Appearance

Yellow Brown to off White Powder

Used Part

Rhizome

Active Ingredient

Natural Resveratrol

Standard

Meet USP/Ep

Function

Natural Antioxidant

Us Warehouse

According to Your Demand

Sample

10-20g Free Samples

Solvent Residue

<5000ppm

PAHs

<50ppb

Identification

Conform with Standard

Transport Package

25kg/Drum

Specification

50% 98% Resveratrol

Trademark

Comext

Origin

China

HS Code

130219

Production Capacity

10t Per Month

Key features

High Purity Resveratrol: Natural Resveratrol content ranges from 50% to 98% verified by HPLC assay method.

Multiple Certifications: Certified by ISO, Kosher, Halal, Organic, and Fssc standards for global compliance.

OEM/ODM Customization: Supports customization from samples and designs, including appearance and botanical name.

Comprehensive Safety: Low solvent residue (<5000ppm), PAHs (<50ppb), and heavy metals meet strict safety limits.

Versatile Applications: Suitable for food, health care products, medicine, lotions, tablets, and capsules.

Free Sample Availability: Offers 10-20g free samples for quality testing and evaluation before bulk orders.

Stable Shelf Life: 2 years shelf life when sealed and stored properly in a well-closed container.

Professional QA/QC: Rigorous random inspection including visual and function checks by dedicated inspectors.

Company profile

Quality AssuranceOverseas WarehouseHigh Repeat Buyers ChoiceProduction Process Visualization

Changsha Comext Biotech Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 9 Years CertifiedNearest Port: Shanghai Port,Average Response Time: ≤1.56h

AI-Powered supplier vetting

SummaryComext presents capabilities across export trade, manufacturing, service, quality control, R&D, and sustainability. It reports multiple management-system certifications and states that quality assurance is present. Service-related procedures exist for supplier assessment, corrective and preventive actions, and customer complaints, but records are not available. The supplier reports in-stock and overseas-warehouse capabilities, OEM service for popular brands, ODM services, and customization from samples or designs. However, it has no valid manufacturing-capacity contract with its affiliated subcontractor, no new products in the past year, no R&D patents, no overseas showroom, and no available SDK. Financial credibility cannot be assessed because the provided financial entries contain only years and no usable financial information.

CertificationsThe supplier reports OHSAS/OHSMS 18001, ISO 9001, ISO 14001, and QC 080000 certifications under its supplier management systems. These explicitly indicate a broad set of reported management-system certifications.

R&D capabilityThe supplier provides ODM services and has documented R&D inputs, outputs, reviews, verification, and validation for audit, but reports no new products in the past year and zero R&D patents. The evidence shows an established R&D process but limited demonstrated recent innovation output.

Production capacityThe supplier reports quality assurance, in-stock capability, lead times within 15 working days in both peak and off-season, and OEM service for popular brands. However, it has no valid manufacturing-capacity contract with its factory or affiliated subcontractors, creating a documented production-governance deficiency.

Customization capabilityThe supplier explicitly offers customization from samples and designs, as well as ODM services, and reports OEM service for popular brands. These statements directly support capability for customer-specific product development and manufacturing.