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About Us
Guangzhou Yonsci Bio-Technology Co., Ltd., based in Guangzhou, China, is a leading manufacturer and global supplier of high-quality peptides and biochemical raw materials. With years of expertise in biotechnology and peptide synthesis, we provide research-grade peptides, cosmetic peptides, and pharmaceutical peptide ingredients to clients worldwide.
Our production facility is equipped with advanced GMP-compliant lines and strict quality control systems to ensure every product meets international standards. From standard peptides to customized solutions, we proudly serve research institutes, pharmaceutical companies, and cosmetic industries, offering innovation, reliability, and trust.
Factory Land Occupation
Senior Technical Engineer
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Products
At Yonsci Biotechnology, we specialize in the development and distribution of research-use-only (RUO) raw materials, including peptides, small molecules, and biochemical reagents. Our services cover the entire lifecycle of peptide innovation:
Superior Product Quality
-Peptides synthesized via SPPS, purified by HPLC, and verified by MS
-Each batch delivered with COA (purity, molecular weight, water content, residual solvents, microbial limits)
-Optional third-party testing, endotoxin (LAL) reports, and stability studies
Customization & R&D Support
-Custom peptide synthesis (mg to kg scale)
-Peptide modifications (PEGylation, acetylation, labeling, etc.)
-Small molecule synthesis and project-based scale-up
-Technical feasibility analysis, cost control, and fast delivery
Wide Product Portfolio
-Peptides: GLP-1 analogs (Semaglutide, Tirzepatide, Retatrutide), cosmetic peptides (Acetyl Hexapeptide-8, Matrixyl), anti-aging peptides, and research peptides
-Small Molecules: Nootropics, NAD+ boosters (NMN, NR, NADH), intermediates
-Biochemicals: Amino acid derivatives, enzyme co-factors, custom reagents
We continuously launch new products to meet evolving market needs and provide flexible batch reservations to support long-term partnerships.
With years of experience in solid-phase and liquid-phase peptide synthesis, our team of scientists at Guangzhou Yonsci Bio-Technology Co., Ltd. delivers efficient, high-quality peptides at globally competitive prices to meet your research needs.
Chain length up to 70 amino acids; quantities ranging from milligrams to kilograms; purity up to 99%.
Free provision of N-terminal acetylation and terminal amidation
Lipopeptides, phosphopeptides(Ser, Thr, Tyr), cyclic peptides (amide-cyclized peptides, disulfide bond–cyclized peptides), fluorescently labeled peptides (FAM, FITC), biotin-labeled peptides(BIOTIN), complex antigen peptides(MAP), etc.
KLH, BSA, OVA
Containing D-amino acids and various amino acid derivatives.
Crude peptides, >70%,80%, >90%,95%, >98%,99%
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