Premium Peptides
Research-Grade Purity
Global Reliable Supply
Providing high-purity peptide products, custom synthesis services, and comprehensive COA reports to research institutions and pharmaceutical companies worldwide.
Dedicated to Peptide R&D
Serving Global Research
Peptide Supplier is an international company focused on peptide product development, manufacturing, and supply, headquartered in the USA and Hong Kong.
We provide high-purity peptide products, custom synthesis services, and comprehensive COA reports to pharmaceutical companies, biotech labs, and research institutions worldwide.
With advanced synthesis technology and rigorous quality control, we have become a long-term partner for many leading research institutions globally.
Product Categories
Custom Peptide Synthesis
Any sequence, any scale
From milligram to gram-scale custom peptide synthesis tailored to your research needs
In-Stock Peptide Library
Ready to ship
Thousands of standard peptides including signal peptides, antimicrobial peptides, and drug peptides — ship immediately
Modified Peptides
Labeling, cyclization & more
Fluorescent labeling, biotin labeling, cyclization, and other specialized modification services
COA Reports
Online Query
Instant Download
Complete Quality
Analysis Per Batch
We provide a complete Certificate of Analysis (COA) for every batch, including purity testing, molecular weight confirmation, amino acid sequence verification, and other key data.
Customers can query and download the COA report for their specific batch online using the product number, ensuring traceability and reliability of research data.
Query ReportsGlobal Service Network
Client Testimonials
"Peptide Supplier's products consistently meet our high purity standards. Their custom synthesis service is highly responsive — from sequence design to delivery in less than two weeks. The COA reports are detailed and complete, providing reliable data support for our research."
Dr. Sarah Chen
Stanford University, Department of Biochemistry