Terms of Service

Effective Date: August 4, 2026

These Terms of Service govern access to and use of this website.

Company Information

Contracting and Invoicing Entity:  YONGXI INTERNATIONAL TRADE LIMITED

Hong Kong Registered Address:
UNIT B53, 2/F, KWAI SHING IND
BLDG PHASE 1, 36-40 TAI LIN
PAI ROAD, KW, HONG KONG

Company Registration Number: 80772328
Email: market@hkpeptidelab.com
Telephone: +86 130 9832 9735

YONGXI INTERNATIONAL TRADE LIMITED is the sole entity authorized to enter into external contracts and issue invoices for the business described on this website.

Business-to-Business Website

This website is intended for qualified companies, laboratories, universities, distributors, and other institutional research organizations.

The website provides research-focused product information, quotation support, catalog access, technical communication, and analytical documentation support. [Content restricted for research compliance].

No Online Ordering or Payment

This website does not support online ordering or payment.

Any quotation, commercial term, contract, invoice, shipment arrangement, or business transaction is handled through direct business communication with qualified organizations.

Website access, inquiry submission, catalog download, or receipt of a quotation does not create a binding purchase agreement.

Distributor and Regional Cooperation

We welcome distributor inquiries from qualified organizations worldwide.

No prior written authorization is required to submit a distributor inquiry or discuss potential cooperation. However, no distributor appointment, resale right, territory right, or exclusive regional right is created by website access, inquiry submission, informal communication, or quotation alone.

Any distributor appointment, commercial cooperation, regional territory, pricing arrangement, or regional exclusivity must be confirmed in a separate written agreement signed by YONGXI INTERNATIONAL TRADE LIMITED.

Research Use Only

All materials described on this website are intended solely for controlled laboratory research and analytical purposes by qualified organizations and trained personnel.

For Research Use Only. [Content restricted for research compliance].

[Content restricted for research compliance]

[Content restricted for research compliance].

[Content restricted for research compliance].

Accuracy of Information

We make reasonable efforts to keep website information accurate and current. However, product information, technical information, documentation availability, shipping arrangements, and commercial availability may change without notice.

Batch-specific analytical documentation, where available, should be reviewed for the relevant material and batch. General website information does not replace batch-specific documentation, internal research qualification, independent testing, or the buyer’s own compliance procedures.

Acceptable Use

[Content restricted for research compliance].

Contact Us

For questions regarding these Terms of Service, please contact:

YONGXI INTERNATIONAL TRADE LIMITED
Email: market@hkpeptidelab.com
Telephone: +86 130 9832 9735

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YiXiSheng Biotechnology

For Research Use Only. Not for human consumption, clinical use, or veterinary use.

Contact Us

  • market@hkpeptidelab.com
  • +86 130 9832 9735
  • Registered Office: Wuhan, China; Production Facility: Shenzhen, China

FDA Disclaimer: The statements made within this website have not been evaluated by the US Food and Drug Administration. The statements and the products of this company are not intended to diagnose, treat, cure or prevent any disease. YiXiSheng Biotechnology Co., Ltd. is not a compounding pharmacy or chemical compounding facility as defined under 503A of the Federal Food, Drug, and Cosmetic act. YiXiSheng Biotechnology Co., Ltd. is not an outsourcing facility as defined under 503B of the Federal Food, Drug, and Cosmetic act. All products are sold for research, laboratory, or analytical purposes only, and are not for human consumption.

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