Based in China and the UK, we welcome peptide product enquiries from customers worldwide. Browse the catalogue for individual product details, specifications and supporting documentation, and contact our team for availability and destination-specific information. Peptides are amino-acid chains with distinct compositions; each product should be considered in the context of its stated intended use.
Product specifications and batch documentation provide complementary information. A specification identifies the compound and its formulation, while a certificate of analysis (COA) reports the results of tests performed on a particular batch. Review the lot number, analytical methods, report date and results together to understand the evidence for the item. Contact our team to request product-specific documents.
Match each report to the relevant product and batch. Purity, identity and measured content describe different properties; review the methods and scope of testing together.
Understanding a peptide product starts with its composition, formulation and intended use. Product specifications and analytical documentation bring these details together and support an informed enquiry.
01
Identity & composition
Peptides consist of amino acids linked by peptide bonds. Sequence, chain length and chemical modifications distinguish one compound from another. Specifications may include a molecular formula, molecular weight or CAS identifier; these describe identity rather than proving the quality of a particular batch.
02
Form & stated quantity
A product’s formulation and stated contents are essential parts of its specification. Milligrams describe mass; milligrams per millilitre describe concentration. For blends, review the identity and quantity of each component rather than treating the total blend quantity as the amount of every ingredient.
03
Batch-specific documentation
A certificate of analysis links analytical results to a defined sample or production batch. Match the product name and lot identifier, then review the method, report date, laboratory details and reported results. Documents should be assessed for the batch concerned.
04
Intended use & eligibility
Product classifications determine the requirements for supply and use. Research-use-only materials are intended for research, not human or veterinary administration. A research label does not confer medical approval. Review the stated intended use and applicable destination requirements for each product.
Illustrative laboratory photography.
Analytical documentation
Understanding purity, identity & content
High-performance liquid chromatography (HPLC) separates sample components and can assess purity under a defined method. Liquid chromatography–mass spectrometry (LC-MS) can support identification. Measured peptide content is a separate result: a purity percentage alone does not establish the quantity present in a vial.
Chemical purity, identity, content and microbiological quality answer different questions. Sterility, endotoxins and other contaminants require appropriate testing. Review the scope of the report and the methods used; analytical results do not, by themselves, establish suitability for medical use.
Storage conditions depend on formulation, packaging and stability data. Lyophilisation removes water through a drying process; shelf life and transport conditions still depend on the individual product specification. Review the label and accompanying documentation before handling.
Safety data sheets, where supplied, provide information on hazards, handling and disposal. Contact our team for clarification of product-specific instructions. General catalogue information is not a substitute for professional medical advice and does not provide dosing or administration guidance.
For documentation or availability requests, include the product name, batch reference and destination country. This helps our team address the relevant product and any destination-specific requirements.
Illustrative laboratory photography.
Packaging illustration. Refer to catalogue details for availability and specifications.
Packaging & product identification
Product labels identify the stated compound, quantity and intended use. Read these details alongside the individual specification and batch documentation. A photograph or packaging statement alone does not establish contents, analytical quality or medical approval.
Contact our team for product availability, specifications and supporting documents.
What information should I review for a peptide product?
Review the compound identity, formulation, stated quantity, intended use and batch documentation. Molecular identifiers describe the compound; analytical reports describe the tested sample. For blends, check the individual components and their stated amounts.
What is a certificate of analysis?
A certificate of analysis (COA) is a report of test results for a particular sample or batch. Where a document is supplied, compare its product name and batch or lot number with the item. A certificate does not by itself establish medical approval or suitability for human use.
What do HPLC and LC-MS results tell me?
High-performance liquid chromatography (HPLC) separates sample components and can be used to assess purity under a stated method. Liquid chromatography–mass spectrometry (LC-MS) can support identification. Neither result alone establishes sterility, safety or suitability for a particular use.
Where can I find product specifications?
Review the specifications and documents linked in the product details. To request further information, send the product name and any batch or lot reference to our team. Testing coverage should be established from the relevant report.
How do I enquire about a product?
Use the enquiry link in the product details to contact our team about availability, specifications and documents. The catalogue is enquiry-only; any sale is subject to confirmation of product eligibility and destination requirements.
Do you accept international enquiries?
Yes. GL Biochem Peptide is based in China and the UK and welcomes worldwide enquiries. Availability and shipping eligibility must be confirmed for each destination.
How should a product be stored or handled?
Follow the product-specific label, supplier instructions and safety data sheet where provided. Storage conditions depend on the formulation and packaging; do not assume that all peptides need the same temperature or handling. Request missing instructions before handling a product.
How can I check delivery options?
Include your destination country and product name in your enquiry. Our team can review the applicable arrangements; request confirmation of available shipping options, charges, delivery estimates and import requirements before proceeding.
Can you advise on medical use?
This website does not provide medical advice, dosing or administration instructions. Intended use and any applicable restrictions must be checked for each product. A research label or a purity result is not evidence of approval for human or veterinary use.