What are the storage requirements?

Store in a well-closed container at room temperature, away from moisture and direct sunlight.

What grades are available?

The product is available in Food Grade and Pharma Grade.

What payment terms do you accept?

We accept T/T (Telegraphic Transfer) as the primary payment term.

Comext Natural Pure Factory Direct Vitamin K1 5% Powder for Dietary Supplements

Name: Comext Natural Pure Factory Direct Vitamin K1 5% Powder for Dietary Supplements
Brand: Changsha Comext Biotech Co., Ltd.
SKU: 2073980735

Hunan, ChinaChangsha Comext Biotech Co., Ltd.

US$10.00-99.00

1 kg

Sample price:US$10.00/bag.Request sample

Product profile

Customization

Available

CAS No.

N/a

Formula

N/a

Model NO.

Vitamin K

EINECS

N/a

Packaging Material

Drum

Storage Method

Normal

Shelf Life

>12 Months

Nutrient Composition

Vitamin

Resource

Natural

The content of active substances

Unit

Appearance

White Powder

Sample

10-20g Free

MOQ

1kg

Delivery Time

3-5 Working Days

Package

25kg/Drum

Storage

Cool and Dry Place

Application

Supplementd, Medicine..

Function

Nutrient Enhancer

Test Method

HPLC

Grade

Food Grade, Pharma Grade

Transport Package

Fiber Drum

Specification

Vitamin

Trademark

COMEXT

Origin

China

HS Code

2906199090

Production Capacity

10000kg/Year

Key features

High Purity Grade: Available in Food Grade and Pharma Grade with strict heavy metal limits.

Natural Source: Derived from natural resources for pure dietary supplement applications.

Customization Options: Supports customization from samples and designs for specific needs.

Fast Delivery: Standard delivery within 3-5 working days for orders over 1kg.

Free Sample Available: Provides 10-20g free samples for quality verification before bulk order.

Strict Quality Control: Meets USP/EP standards with HPLC testing and low heavy metal content.

Long Shelf Life: Maintains quality for 2 years when stored in a sealed container properly.

OEM/ODM Service: Offers both OEM and ODM services for branded product development.

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: ≤3.11h

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.