For product specifications, COA requests, samples, quotations or other purchasing information, please contact us through the website inquiry form, email or WhatsApp.

Our team will respond according to your specific product and sourcing requirements.

Please provide the product name or CAS number, required specification or purity, estimated quantity, and destination country or region.

We will then confirm pricing, estimated lead time and available quality documentation based on the specific request.

Regulatory status and permitted uses of peptide products vary by jurisdiction.

Products identified for research use should only be used for research, analytical testing, method development and other legally permitted R&D applications, and are not intended for unapproved human or veterinary use.

Customers are responsible for confirming regulatory requirements applicable to their intended use and market.

Based on the product properties, order quantity, and destination country, we can assist in arranging a suitable international shipping solution.

Import requirements for chemicals, biochemical raw materials, and peptide products vary by country and region. Customers should verify the import and end-use requirements for the products in accordance with local regulations.

We can provide available commercial and quality documentation based on the actual products.

Lead time depends on the product, order quantity, availability and whether a customized specification is required.

Estimated lead time will be confirmed together with the formal quotation.

Customization may be evaluated for selected products based on requirements such as purity, assay, salt form or other technical parameters.

Feasibility, minimum quantity and lead time are confirmed on a case-by-case basis.

Packaging options are available according to order quantity. Please contact us for available pack sizes and customized packaging requirements.

Samples and small-quantity orders are available for selected products.

Sample quantity, minimum order quantity and pricing depend on the product, specification and current availability.

Please provide the product name or CAS number and your expected quantity for confirmation.

Purity and assay specifications vary by product.

Peptides and other specialty ingredients are supplied according to their respective product specifications and batch COA.

Please refer to the individual product page or contact us for detailed purity, assay and quality parameters.

Hangzhou Huayuu Biopharma focuses on the international supply of specialty biopharmaceutical and functional raw materials.

Our current portfolio includes peptide raw materials such as BPC-157, GHK-Cu, TB-500 Fragment, CJC-1295, Retatrutide and Tirzepatide; cosmetic ingredients such as 3-O-Ethyl Ascorbic Acid and L-Ergothioneine; and biochemical ingredients such as NADPH and related cofactors.

Please contact us to confirm the specification and availability of a specific product.

Quality documentation is available according to the specific product and batch, including Certificate of Analysis (COA) and product specifications.

For selected peptide products, analytical documentation such as HPLC and MS data may also be available depending on the batch.

Please specify the documents required when requesting a quotation so that availability can be confirmed before order placement.