KSO Corporation

KSO Corporation is a specialized Contract Research Organization (CRO) based in Tokyo, Japan, focusing on human clinical trials for functional foods, cosmetics, and pharmaceutical products. Established in 1992, the company provides end-to-end clinical research services, including study design, volunteer recruitment, and statistical analysis. KSO is a prominent player in the Japanese Tokuho (Food for Specified Health Uses) and Foods with Function Claims (FFC) sectors, leveraging a proprietary database of clinical trial volunteers. Their expertise extends to evaluating the safety and efficacy of ingredients for metabolic health, skin care, and general wellness. The company operates its own clinical trial facilities and maintains rigorous quality control standards to meet regulatory requirements in Japan. As a boutique CRO, KSO offers tailored solutions for both domestic and international clients looking to enter the Japanese health and wellness market.