RTPeptide
Precision. Purity. Performance.
Over two decades delivering high-purity custom peptides to 500+ research institutions and biotech companies worldwide. GMP certified. COA guaranteed.
Core Products & Services
From peptide synthesis to drug development, from quality testing to compliant manufacturing — we deliver end-to-end professional solutions.
Custom Peptide Synthesis
From milligram to kilogram scale, we deliver high-purity custom peptides with purity ≥99%, supporting diverse modification types with fast turnaround.
Peptide Drug Development
From target validation to candidate screening, we provide full-pipeline peptide drug development support to accelerate your path to market.
Bioactivity Testing
Equipped with advanced MS and HPLC systems, we offer purity characterization, bioactivity assessment, and stability studies for peptide products.
GMP-Compliant Manufacturing
Our GMP-certified production system with complete quality documentation meets clinical and commercial manufacturing requirements worldwide.
Peptide Raw Material Library
Over 10,000 in-stock peptide raw materials including amino acid derivatives, protecting group reagents, and coupling agents — shipped globally.
Research Partnership
Deep collaboration with leading universities and research institutes worldwide — offering joint R&D, technology transfer, and commercialization services.
OEM Private Label Services
One-stop OEM peptide solutions for brands, distributors, and research institutions — from R&D to delivery, fully guaranteed.
Custom Formulation
We provide peptide sequence design, modification optimization, and formulation customization tailored to your product requirements.
Private Label Packaging
Support your own brand packaging design with flexible multi-spec filling services — from small batches to large-scale production.
Full Registration Dossier
Complete regulatory support documentation including quality standards, testing protocols, and stability data to accelerate market entry.
Global Logistics
Partnered with international logistics providers for cold-chain shipping, ensuring safe delivery to destinations worldwide.
Rigorous Quality Control
Every batch undergoes strict quality inspection compliant with ICH, USP, and other international standards — quality guaranteed.
Dedicated Account Service
A dedicated project manager tracks your OEM order from start to finish, providing technical consultation and after-sales support.
OEM Collaboration Process
Consultation
Submit your OEM requirements; a dedicated advisor will connect with you 1-on-1
Proposal Design
Custom formulation and packaging plan with sample confirmation
Agreement
Confirm technical and commercial terms, officially kick off the project
Production & Delivery
GMP-certified manufacturing with complete quality documentation
Ready to start your OEM project?
Chat with our OEM specialists on WhatsApp — get a custom proposal within 24 hours.
COA Quality Certificates
Every batch comes with a complete Certificate of Analysis, ensuring purity, structure, and bioactivity meet international standards.
Batch COA Lookup
Search by product name or batch number
| Cert No. | Product | Batch | Purity | MW | Method | Test Date | Status | Action |
|---|---|---|---|---|---|---|---|---|
| COA-2025-001 | Retatrutide CAS: 2381089-83-2 | PB20250301 | 99.6% | 4759.4 Da | HPLC / MS | 2025-03-01 | PASS | |
| COA-2025-002 | Tirzepatide CAS: 2023788-19-2 | PB20250308 | 99.4% | 4813.5 Da | HPLC / MS | 2025-03-08 | PASS | |
| COA-2025-003 | Semaglutide CAS: 910463-68-2 | PB20250315 | 99.2% | 4113.6 Da | HPLC / MS | 2025-03-15 | PASS | |
| COA-2025-004 | Liraglutide CAS: 204656-20-2 | PB20250320 | 99.5% | 3751.2 Da | HPLC / MS | 2025-03-20 | PASS | |
| COA-2025-005 | Cagrilintide CAS: 2270884-43-2 | PB20250325 | 99.1% | 3874.3 Da | HPLC / MS | 2025-03-25 | PASS | |
| COA-2025-006 | AOD9604 CAS: 221231-10-3 | PB20250328 | 99.3% | 1815.1 Da | HPLC | 2025-03-28 | PASS | |
| COA-2025-007 | HGH (Human Growth Hormone) CAS: 12629-01-5 | PB20250331 | 99.0% | 22124 Da | HPLC / MS | 2025-03-31 | PASS | |
| COA-2025-008 | IGF-1 LR3 CAS: 946870-92-4 | PB20250402 | 99.2% | 9117.5 Da | HPLC / MS | 2025-04-02 | PASS | |
| COA-2025-009 | CJC-1295 DAC CAS: 863288-34-0 | PB20250404 | 99.4% | 3647.3 Da | HPLC / MS | 2025-04-04 | PASS | |
| COA-2025-010 | Ipamorelin CAS: 170851-70-4 | PB20250406 | 99.5% | 711.9 Da | HPLC | 2025-04-06 | PASS | |
| COA-2025-011 | HGH Fragment 176-191 CAS: 66004-57-7 | PB20250408 | 99.3% | 1817.1 Da | HPLC | 2025-04-08 | PASS | |
| COA-2025-012 | Sermorelin CAS: 86168-78-7 | PB20250410 | 99.1% | 3357.9 Da | HPLC / MS | 2025-04-10 | PASS | |
| COA-2025-013 | BPC-157 CAS: 137525-51-0 | PB20250411 | 99.6% | 419.5 Da | HPLC | 2025-04-11 | PASS | |
| COA-2025-014 | Thymosin Beta-4 (TB-500) CAS: 77591-33-4 | PB20250412 | 99.3% | 4963.5 Da | HPLC / MS | 2025-04-12 | PASS | |
| COA-2025-015 | SS-31 (Elamipretide) CAS: 736992-21-5 | PB20250413 | 99.2% | 639.8 Da | HPLC / MS | 2025-04-13 | PASS | |
| COA-2025-016 | Mots-C CAS: 1627580-64-6 | PB20250414 | 99.0% | 2174.5 Da | HPLC / MS | 2025-04-14 | PASS | |
| COA-2025-017 | Selank CAS: 129954-34-3 | PB20250415 | 99.4% | 751.9 Da | HPLC | 2025-04-15 | PASS | |
| COA-2025-018 | Semax CAS: 80714-61-0 | PB20250416 | 99.1% | 813.0 Da | HPLC | 2025-04-16 | PASS | |
| COA-2025-019 | Epithalon CAS: 307297-39-8 | PB20250416 | 99.5% | 390.4 Da | HPLC | 2025-04-16 | PASS | |
| COA-2025-020 | Thymosin Alpha-1 CAS: 62304-98-7 | PB20250417 | 99.3% | 3108.4 Da | HPLC / MS | 2025-04-17 | PASS | |
| COA-2025-021 | NAD+ (500mg) CAS: 53-84-9 | PB20250417 | 99.7% | 663.4 Da | HPLC | 2025-04-17 | PASS | |
| COA-2025-022 | PT-141 (Bremelanotide) CAS: 189691-06-3 | PB20250417 | 99.2% | 1025.2 Da | HPLC / MS | 2025-04-17 | PASS | |
| COA-2025-023 | Melanotan II CAS: 121062-08-6 | PB20250417 | 99.4% | 1024.2 Da | HPLC | 2025-04-17 | PASS | |
| COA-2025-024 | GHK-Cu (Copper Peptide) CAS: 49557-75-7 | PB20250417 | 99.5% | 340.4 Da | HPLC | 2025-04-17 | PASS | |
| COA-2025-025 | Gonadorelin CAS: 33515-09-2 | PB20250417 | 99.1% | 1182.3 Da | HPLC / MS | 2025-04-17 | PASS |
For specific batch COA or full test reports, please contact our Quality Department.
Need a COA for a Custom Product?
We provide complete analysis certificates for every custom peptide batch, including HPLC chromatograms, mass spectra, and bioactivity reports.
Expertise
Where Research Meets
Technology
Founded in 2003, RTPeptide was built on a single conviction: that world-class peptide research demands both uncompromising scientific rigor and the most advanced synthesis technology available. The name says it all — R for Research, T for Technology.
Today, with over 200 dedicated scientists and our proprietary RT Synthesis Platform™, we serve 500+ pharmaceutical companies, universities, and biotech institutions worldwide — delivering high-purity custom peptides that power the next generation of life science breakthroughs.
Every peptide we produce meets research-grade standards — validated by HPLC, MS, and amino acid analysis. Science you can trust.
Our proprietary RT Synthesis Platform™ combines automated SPPS with real-time QC monitoring — delivering precision at scale.
RTPeptide founded — driven by a mission to bridge research-grade quality with cutting-edge synthesis technology
Achieved GMP certification, entering pharmaceutical-grade peptide production at scale
Established strategic partnerships with 50+ leading global research institutions across 30 countries
Launched next-gen RT Synthesis Platform™, tripling throughput while maintaining ≥99% purity standards
Trusted by leading institutions
Core Scientific Team
World-class peptide scientists and industry experts driving innovation through exceptional research capabilities.
Dr. Marcus Holloway
Chief Scientist / FounderPeptide Chemistry & Drug DesignPhD in Medicinal Chemistry from MIT, Postdoctoral Fellow at Harvard Medical School. Author of 120+ peer-reviewed publications and principal investigator on 5 NIH-funded R&D programs.
Dr. Sarah Whitfield
Director of R&DPeptide Drug Development & TranslationPhD in Biochemistry from Stanford University, former senior researcher at Pfizer Global R&D. Led multiple peptide drug IND filings and Phase I clinical translation projects.
Dr. James Callahan
Director of QualityGMP Compliance & Quality SystemsPhD in Pharmaceutical Sciences from University of Michigan. 20 years of pharmaceutical QA experience; architected the company's ISO 9001 and GMP dual-certification framework.
Dr. Elena Voss
Director of Analytical ScienceMass Spectrometry & BioactivityPhD in Analytical Chemistry from ETH Zurich. Expert in LC-MS/MS, NMR, and HPLC method development; built RTPeptide's core analytical and QC platform from the ground up.
Start a
Partnership
Whether you have custom synthesis needs, research collaboration interests, or simply want to learn more about our products and services — we'd love to hear from you. Our team responds within 24 hours.
Partner Institutions