A professional peptide API manufacturer and CDMO
Enogen is a professional peptide API manufacturer and CDMO based in China. Since 2015, we have been committed to providing high-quality GMP-grade peptide APIs and custom synthesis services for global pharmaceutical and biotech companies.
Enogen offers a wide range of high-purity peptide products, including catalog peptides for research, generic peptide APIs for clinical use, custom peptide synthesis tailored to your needs, and cosmetic peptides for skincare innovations. All peptides are backed by strict quality control, batch-to-batch consistency, and flexible order quantities from milligrams to kilograms.
Hangzhou Enogen Biotech Co., Ltd, a national high-tech enterprise in Zhejiang, China. Since our founding in 2015, we have focused on the R&D, production, and sale of high-quality peptide active pharmaceutical ingredients (APIs). Our strong R&D capability is driven by a top-tier team of over 30 PhDs and supported by more than 80 patents, ensuring continuous innovation and technical excellence.
Our manufacturing facility is fully certified by stringent international regulatory authorities, including China NMPA, US FDA, EU EDQM, and South Korea MFDS. This global compliance underscores our commitment to quality and enables us to serve pharmaceutical and biotech companies worldwide.
We are dedicated to providing reliable GMP manufacturing and custom peptide synthesis services. With high-quality products and exceptional customer support, we has earned recognition from global partners and continues to expand its reach in the peptide industry.
At Enogen, we specialize in R&D, production of high-quality peptide and small molecule APIs, supporting leading therapeutics such as Semaglutide, Tirzepatide, and Liraglutide with GMP-commercial manufacturing. Capability for Semaglutide has achieved 20 KG per batch, enabling seamless scale-up from discovery to multi-ton commercial supply.
In addition, we offer comprehensive services including non-GMP custom synthesis, analytical development, and regulatory support. With advanced synthesis platforms and successfully inspected facilities, we help pharma and biotech partners accelerate time to market with reliable and scalable peptide production.
Complying with GMP, FDA regulations
February 9, 2026
The recent clash between Hims & Hers and the FDA over a compounded semaglutide pill has ignited a
January 9, 2026
As 2026 begins, China’s pharmaceutical market braces for transformation. The Supreme People’s Court recently upheld Novo Nordisk’s semaglutide
December 9, 2025
The global battle for dominance in the obesity and metabolic disease market has reached a fever pitch. In
A peptide Active Pharmaceutical Ingredient (API) is the pure, biologically active substance in a drug product. It is the essential raw material used to manufacture finished peptide-based medications.
We specialize in the R&D and commercial supply of various peptide APIs, including pharmaceutical peptides, research-grade peptides, cosmetic peptides, and small molecule APIs such as Retatrutide and Orforglipron.
Yes, our facility and specific products, including Semaglutide, Tirzepatide, etc., are listed on the US FDA’s Green List.
Contact us directly — we’re here to help with specifications, pricing, lead times, and regulatory requirements.
