Verified Adjuvant Test Standards Suppliers

VuRoyal Pharmaceutical is an FDA-registered, Massachusetts-approved pharmaceutical wholesaler. The QS-21 adjuvant supplied through Desert King International holds GMP, IPEC GMP, and EXCiPACT certifications — Desert King being the first Chilean company and the only global Quillaja supplier to achieve EXCiPACT certification. Additionally, raw material sourcing is FSC (Forest Stewardship Council) certified for sustainable practices.

QS-21 is used in five globally approved vaccines: Shingrix (shingles), Arexvy (RSV), Mosquirix RTS,S and R21/Matrix-M (malaria), and COVID-19 vaccines. It is also in Phase I–III clinical trials for over 20 vaccine candidates, including HIV, cancer, herpes, Alzheimer's disease, pneumococcal, hepatitis B, Clostridium, and anthrax vaccines, as well as composite adjuvant systems AS01, AS02, ALFQ, and Matrix-M.

Desert King International produces 5 kg of QS-21 annually, expandable to 10 kg. Each gram of QS-21 enables 20,000–40,000 human doses, meaning the current capacity supports 200–400 million human doses per year. Production occurs across GMP-certified facilities in Chile, Mexico, and Italy, ensuring consistent quality and scalability for large-scale vaccine programs and clinical research.

Yes. VuRoyal distributes veterinary vaccine adjuvants from Desert King International, including QA-21 (lyophilized powder), Vet-sap (90% powder), and Ultra (65–70% powder). These products are used in poultry, swine, ruminants, fish, and shrimp to modulate immune responses, improve growth performance, and increase pathogen resistance. They are certified under IPEC GMP and EXCiPACT standards.

VuRoyal offers comprehensive regulatory support for China market entry, including pharmaceutical excipient registration with the Center for Drug Evaluation (CDE), imported drug approval registration, import filing, and application processing. As of September 2, 2025, the QS-21 excipient registration entered Public Notice Phase I in China. The company also provides free consultation for reference preparation selection, label design, and legal documentation.

Yes. VuRoyal provides specialized cold chain pharmaceutical transportation services for temperature-sensitive and specialty medicines. Their end-to-end logistics capabilities cover international procurement, customs clearance, and delivery in full compliance with USP, Title 21 CFR, PDMA, and DSCSA regulations. They hold GDP Standard Operation Protocol certification and possess special export and operating qualifications for importing specialty medicines into the USA and China.