Terms, privacy and shipping

Terms of supply

Research-use restriction

All products are offered strictly for legitimate laboratory and research purposes. They are not intended for human or veterinary use. Customers must be authorized to purchase and handle the requested materials. YZF Peptide does not provide medical claims, dosing advice or usage instructions.

Supplier information

YZF Peptide is a China-operated research product wholesale supplier with three years of industry experience. Available batch documentation is provided by laboratories in China; laboratory names and other non-public supplier information are not published on this website.

Pricing and order confirmation

Public prices are in USD for the box configuration shown and one-box orders are accepted. Product values from US$600 receive 5% off and values from US$1,000 receive 10% off. Larger purchasing plans may request a tailored distributor quotation. Availability, shipping, duties, applicable taxes, payment details, complimentary items and final pricing are confirmed in writing through WhatsApp before acceptance. Bank transfer and cryptocurrency may be offered after confirmation.

Customization

Custom presentation or labeling may be considered for sufficiently large distributor orders. Feasibility, minimum quantities, lead time and pricing are agreed separately.

Catalog accuracy

We aim to keep specifications and prices current. Final written confirmation controls if a catalog entry or estimate conflicts with a quotation. Listings marked as pending detail must be verified before ordering.

Privacy notice

Information collected

When an inquiry is submitted, the website stores the contact name, company, country, WhatsApp detail, selected products, quantities, gift preference, notes and research-use confirmation. The site also stores language and inquiry-list choices in the visitor's browser.

How information is used

Information is used to prepare quotations, route WhatsApp conversations, manage order follow-up, prevent misuse and maintain business records. It is not sold for advertising. WhatsApp communications are also subject to WhatsApp's own privacy terms.

Retention and requests

Inquiry records are retained on the YZF Peptide server for business follow-up and recordkeeping. A customer may request correction or deletion through the same WhatsApp contact, subject to legal and transaction-record requirements.

Security

The public site does not collect payment card details. Administrative access is password protected. No internet transmission or storage method can be guaranteed completely secure.

Shipping policy

Dispatch and delivery timing

Orders confirmed before 19:00 China time are normally dispatched the same day. Orders confirmed after the cutoff are normally dispatched on the next business day. Deliveries to the United States and United Kingdom usually arrive within 7 days after dispatch, but this is not an absolute delivery-time guarantee.

Shipping, duties and taxes

Orders ship from China. Shipping, duties and applicable taxes are included in the final confirmed quotation, with delivery arranged to the customer address; no additional duty or tax is normally expected on delivery. Customers must provide complete and accurate recipient information and cooperate with any lawful carrier or import request.

Loss, transit damage or quality dispute

Verified package loss or transit damage is eligible for reshipment. For a verified quality dispute, YZF Peptide bears the corresponding loss after review. Customers should contact support promptly and provide the order, tracking, packaging, product and other evidence reasonably required for verification.

Receiving and storage

Customers are responsible for prompt receipt and appropriate storage. Unopened lyophilized products should be protected from light and moisture, stored at 2-8°C short term or -20°C long term. After reconstitution, follow product documentation and minimize freeze-thaw cycles.