Premium Ingredient Distribution Services for U.S Nutrition Brands
+1 (949)-251-1768
ABOUT DONGYU USI
Built on Trust. Driven by Quality. Connecting Global Manufacturing to U.S. Wellness Brands.
For nearly two decades, we have served as a dependable bridge between trusted global manufacturers and U.S. distributors, contract manufacturers, and wellness brands.
ABOUT DONGYU USI
A Trusted Partner Since 2006
Founded in 2006, Dongyu USI partners with leading international producers — including KoncepNutra™, one of China's top L-Carnitine manufacturers — to supply a broad portfolio of high-quality nutritional ingredients to distributors and contract manufacturers across the United States.
Our Tustin, California warehouse, regulatory expertise, and dependable logistics enable fast, reliable fulfillment for customers of all sizes. Our long-standing relationships with reputable global manufacturers allow us to deliver consistent quality, dependable supply, and competitive pricing.
To ensure excellence in quality and operations, our facility is NSF-certified. We stay current with industry regulations and compliance requirements, enabling us to serve as a trusted and knowledgeable partner.
20+
Years in Business
NSF
Certified Facility
140+
Ingredients Stocked
U.S.
Nationwide Distribution
WHAT WE STAND FOR
Our Values
01 — QUALITY
Quality You Can Trust
We source high-purity nutritional ingredients from vetted global partners with rigorous quality standards and full documentation.
02 — RELIABILITY
Reliable Supply Chain
Our logistics network ensures consistent, on-time delivery so your production never stops — no matter the order size.
03 — PARTNERSHIP
Partnership-Driven
We build long-term relationships grounded in transparency, communication, and operational excellence with every customer.
OUR PEOPLE
