Honso Kampo

Honso Pharmaceutical is a prominent Japanese pharmaceutical company specializing in Kampo medicine, the traditional Japanese system of herbal medicine. Established with roots dating back to 1831, the company is a leader in manufacturing standardized, high-quality herbal extracts for both prescription and over-the-counter use. Honso is distinguished by its commitment to scientific validation, having conducted several clinical trials in the United States for its lead formulas, such as Sho-saiko-to for liver health and Hepatitis C. The company operates state-of-the-art GMP-compliant manufacturing facilities in Japan and maintains a presence in North America through its subsidiary, Honso USA. In 2021, Honso was acquired by Mizuho Medy, further strengthening its position in the global healthcare and natural products market.