Soiken Holdings Inc. Soiken Holdings Inc. (2385.T) is a Japan-based holding company primarily engaged in biomarker development and related bioventure activities originating from Osaka University. Founded in July 1994 and headquartered at 13F Senri Life Science Center in Toyonaka, Osaka, the company operates through six main business segments via its subsidiaries: biological evaluation systems including clinical evaluation tests for foodstuffs and biomarker licensing through Soiken Inc.; healthcare support services such as specific health guidance, health checkups, and diabetes prevention for health insurance societies; cosmetics manufacturing and sales focused on placenta extract products under the Placenta Laboratory brand through Bb Laboratories Inc.; dietary supplements featuring imidapeptides from anti-fatigue research projects through Japan Preventive Medicine Inc.; marketing research and post-marketing surveys for health supplements through Evidence Labo Inc.; and functional material development centered on lactoferrin and pharmaceutical compounds like ascochlorin derivatives through NRL Pharma Inc. The company primarily serves pharmaceutical, food, and healthcare sectors in Japan, with additional cosmetics outreach to the Chinese market via a capital alliance with Beautyplus Holdings Hong Kong Limited established in May 2015; its most recent notable ownership development occurred in 2021 when Hangzhou Golong Holding Co., Ltd. acquired a 10.7% stake for 1.1 billion yen, while it maintains ongoing biomarker commercialization efforts including gene therapy vectors through Virus Ikagaku Kenkyusho Inc.