About Us
ShiLai™ Peptide Technologies is a global leader in custom peptide synthesis and large-scale manufacturing. We supply high-purity peptides like Retatrutide, Semaglutide, and Tirzepatide directly from our GMP-certified facilities in China to clinics and distributors worldwide
About Us | ShiLai™
Peptide Technologies retatrutide factory
ShiLai™ offers Retatrutide, custom peptide synthesis, and bulk supply for clinics and distributors
Leading Global Innovation in Peptide Manufacturing
At ShiLai™ Peptide Technologies, we specialize in the research, synthesis, and large-scale production of high-purity peptides — including industry-leading GLP-1 analogs like Retatrutide, Semaglutide, and Tirzepatide.
As China’s largest peptide manufacturer and a trusted global supplier, we serve a diverse clientele: clinical clinics, aesthetic centers, pharmaceutical research institutions, and peptide product distributors around the world.
About Us | ShiLai™
Peptide Technologies retatrutide factory
Our peptide catalog includes over 300 SKUs, and our Retatrutide peptide stands out for its unmatched purity, stability, and cost-efficiency — ideal for metabolic health, weight management, and performance enhancement solutions.
We are not just a manufacturer — we are a science-driven partner, providing:
- Custom peptide synthesis for unique formulations
- Factory-direct supply for bulk & private label
- Strict GMP-compliant quality control
- Worldwide logistics with fast delivery
- Responsive technical & client support
About Us | ShiLai™
GMP & ISO 9001 Certified Peptide Manufacturer
At ShiLai™ Peptide Technologies, we are a trusted GMP-certified and ISO 9001:2015 quality management certified peptide manufacturer. Our commitment to international quality standards ensures that every batch of peptides—including Retatrutide, CJC-1295, Ipamorelin, and other research peptides—is produced under strict Good Manufacturing Practice (GMP) protocols.
About Us | ShiLai™
As a reliable ISO-certified peptide supplier, we provide high-purity, pharmaceutical-grade peptides for research and development purposes. Our ISO 9001 and GMP certifications guarantee consistent quality, safety, and traceability, making us a preferred partner for laboratories, clinics, and pharmaceutical research organizations worldwide.
GMP-certified peptide manufacturer, ISO-certified peptide supplier, Retatrutide peptide, pharmaceutical-grade peptides, research peptides,
Factory overview
Discover the Custom Retatrutide from ShiLai™ Peptide Technologies. This GMP-certified, prefilled peptide pen is designed for clinical research, metabolic studies, and pharmaceutical R&D.
- GMP-compliant production environment
- Prefilling process of the Retatrutide
- Quality control checks using HPLC and LC-MS
- Packaging and cold-chain shipping for safe delivery
analytical certificate
Retatrutide Certificate of Analysis (COA)
Our Retatrutide peptide is supplied with a complete Certificate of Analysis (COA), ensuring full transparency and quality assurance for research and clinical applications. The COA includes:
- Purity Analysis – Verified by HPLC, ≥98%
- Identity Confirmation – Verified by LC-MS
- Detection Conditions – Detailed HPLC parameters including column, mobile phase, gradient, and detection wavelength
- Microbial and Endotoxin Testing – Low endotoxin levels and microbial contamination within safe limits
- Residual Solvent Compliance – Conforms to ICH guidelines
- Batch Documentation – Comprehensive reports for traceability and reproducibility Each batch of Retatrutide we supply comes with a COA to support your laboratory documentation, regulatory compliance, and research credibility.
