Global Standard Thai Herbal Medicine for Your Sustainable Health
Upholding Quality and Integrity Since 1947

“Trust” is not built through words, but through continuous proof
For over eight decades, Ouay Un has earned trust through both confidence and sincerity.

Confidence comes from the uncompromising standards we follow:
Production under GMP PIC/S certification, strict process control, and traditional knowledge of herbal medicine since 1947.