How do you treat quality complaint?

First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us,we will send you free goods for replacement or refund your loss.

Plant Extract Polygonum Cuspidatum Extract 98% Resveratrol Giant Knotweed Extract

Name: Plant Extract Polygonum Cuspidatum Extract 98% Resveratrol Giant Knotweed Extract
Brand: Nanjing NutriHerb BioTech Co., Ltd.
SKU: 2078491105

Jiangsu, ChinaNanjing NutriHerb BioTech Co., Ltd.

US$30.00-278.00

1 kg

Sample price:US$0.00/kg.Request sample

Product profile

Customization

Available

Certification

ISO, FDA

Assay Method

HPLC, UV

Model NO.

LK0044

Application Form

Tablet, Capsule

Application

Food, Health Care Products

State

Powder

Extract Source

Rosemary

Color

White

Active Ingredient

Resveratrol

MOQ

Content

98%

Transport Package

Bottle, Drum, Vacuum Packed

Specification

1kg/bag 25kg/drum

Trademark

Nutriherb

Origin

China

Production Capacity

1000kg/Month

Key features

High Purity Resveratrol: 98% Resveratrol content verified by HPLC assay method.

ISO and FDA Certified: Manufactured under GMP and ISO standards with third-party testing.

Customized OEM/ODM: OEM and ODM services available for personalized solutions.

Versatile Applications: Suitable for food additives, health care products, and cosmetics.

Free Sample Available: Free samples provided; buyer covers shipping or courier costs.

Rapid Response Support: Valid reply within two hours via contact supplier message.

Quality Guarantee: Free replacement or refund for quality issues caused by manufacturer.

Natural Source Material: Sourced from 100% natural roots with stable cultivation base.

Company profile

Nanjing NutriHerb BioTech Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤1.69h

AI-Powered supplier vetting

SummaryNanjing NutriHerb BioTech Co., Ltd. is identified across the records as a China-based limited company operating in plant extracts, pharmaceutical intermediates, cosmetics, agriculture, food, and related trading activities. The supplier has documented procedures and records for corrective/preventive actions and customer complaints, and holds an ISO9001:2015 certificate. Production information lists capacities for four products, with 11–20 quality-control staff and 6–10 years of combined R&D-engineer experience. However, the records state that no SDK is available, no new products were launched in the past year, quality assurance and traceability statuses are unknown, and quality-control test equipment is recorded as zero. Financial records provide years rather than assessable financial results, so financial credibility cannot be judged. No customer cases are provided.

Supplier typeThe supplier is recorded as a China-based limited company, with records describing it both as a trading company and as a manufacturer/factory. Its stated activities cover plant extracts, pharmaceutical intermediates, biotechnology R&D, cosmetics, daily necessities, and import/export business.

CertificationsThe supplier holds an ISO9001:2015 certificate. A BV audit record is also provided, with a report period from 2025-01-08 to 2026-01-07, although the recorded audit evaluation result is 0 and no interpretation of that result is supplied.

After-Sales capabilityThe supplier has clear procedures and followed records for corrective and preventive actions and for handling customer complaints. This provides explicit evidence of documented service-response processes.

R&D capabilityThe company focuses on innovation in herbal extracts and reports 6–10 years of total R&D-engineer experience. However, it has no available SDK and launched no new products in the past year, indicating limitations in the specifically recorded innovation outputs and technical-support offering.

Customization capabilityThe supplier explicitly reports a design-services capability limited to minor customization. This confirms some customization availability but does not evidence broad or advanced customization capability.

Product Q&A

Q:How to contact with us?

Click the 'Contact Supplier' And then send us message the product you interest in, you will get valid reply within TWO hours.

Q:Which kind of payment terms do you accept?

For small order,you can pay by T/T,or Paypal,nomal order by T/T to our company account

Q:Can you give me a discount price?

Sure,It depends on your qty.

Q:How can i get a sample?

free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.

Q:How to confirm the Product Quality before placing orders?

You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.