About Us
About Peptidesbook
Premium research-grade peptides — transparent, independently tested, and shipped worldwide from our Wuhan, Hubei, China facility.
HPLC-verified lotsShips worldwideFast support
Who We Are
Yunyingjing Network Technology (Hubei) Co., Ltd. is a specialized small-scale enterprise focused on the R&D, manufacturing, and distribution of high-quality bioactive peptide raw materials. Headquartered in Wuhan, Hubei, China, we serve the biopharmaceutical and fine chemical industries with reliable technical support and supply.
Our core operations span custom peptide synthesis, cosmeceutical active peptides, peptide intermediates, and amino acid derivatives. Key product lines include Tirzepatide, pharmaceutical intermediates, peptide APIs, and specialty amino acid building blocks.
As an integrated operation covering trading, production, reagent supply, custom synthesis, and technical services, we are committed to delivering consistent quality and transparent documentation for every lot we ship.
Location
China (Ezhou) Cross-border E-commerce Industrial Park, No. 88 Jiangjun Avenue, Airport Economic Zone, Ezhou City, Hubei Province
Research Excellence
All products are manufactured under rigorous quality control with ≥98% HPLC purity verification on every batch.
Certified Quality
Each production lot ships with a Certificate of Analysis (COA). We follow strict GMP-aligned guidelines throughout manufacturing.
Trusted Globally
Laboratories and research institutions across multiple continents rely on Peptidesbook for consistent, high-purity compounds.
Global Fulfillment
Temperature-controlled packaging and international logistics ensure product integrity from our facility to your lab.
How We Operate
Independent Verification
Active lots are tested at third-party laboratories. COA documents are available for review on request.
Batch Transparency
Every SKU carries clear lot identification and consistent labeling across the catalog.
Careful Handling
Temperature-aware storage protocols and prompt dispatch keep material quality intact from warehouse to delivery.
Responsive Support
Real humans providing practical answers — reach out for bulk inquiries, documentation, or any order questions.