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.

What products does your company have?

We have Melatonin Powder, Melatonin 99%, 73-31-4, Melatonin Raw Material, Melatonin, Pineal Body Extract, Epiphysis Extract, Conarium Extract.

Skin Care Raw Material CAS 73-31-4 98% Melatonin Powder

Name: Skin Care Raw Material CAS 73-31-4 98% Melatonin Powder
Brand: Nanjing NutriHerb BioTech Co., Ltd.
SKU: 2063655275

Jiangsu, ChinaNanjing NutriHerb BioTech Co., Ltd.

US$78.00-185.00

1 kg

Sample price:US$0.00/g.Request sample

Product profile

Customization

Available

Certification

ISO, FDA

Assay Method

HPLC, UV, Gc

Model NO.

L008

Application Form

Tablet, Capsule

Application

Health Care Products, Medicine

State

Powder

Extract Source

Synthetic

Sample

Free Sample

Delivery

1 Week

Stock

Have Stock

MOQ

1kg

Transport Package

Bottle, Drum, Vacuum Packed

Specification

99%

Trademark

Nutriherb

Origin

China

Key features

High Purity Content: Melatonin powder with assay result of 99.55% via HPLC method.

Multiple Certifications: Certified by ISO, FDA, Kosher, and Halal standards for quality assurance.

Free Sample Availability: Free samples provided; customer covers freight which may be refunded later.

Fast Delivery Time: Shipping time is 2-3 working days after payment confirmation.

OEM & ODM Services: Customized solutions available with dedicated R&D team support.

Strict Quality Control: GMP compliant manufacturing with third-party lab testing and zero tolerance for defects.

Versatile Applications: Suitable for health care products, medicine, and senior grade cosmetics.

Long Shelf Life: Product maintains quality for 24 months when stored away from light and heat.

Company profile

Nanjing NutriHerb BioTech Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤1.98h

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.