KOSÉ has three laboratories: The Research Laboratory is engaged in the development of makeup products, skin care products, and various other kinds of products; the Fundamental Research Laboratory conducts research related to fundamental technology and quality assurance; and the Technical Research Center serves as a technical information center to gather and use information related to research projects, such as information on pharmaceutical affairs, scientific information, and information on intellectual property.
These three research centers are all located within the 23 wards of Tokyo and are also close to the Head Office in Nihonbashi, which takes leadership in marketing activities. The close proximity of these facilities to one another facilitates face-to-face-communication among them.

History of KOSÉ’s Research

1951	First science major graduate (Reijiro Kobayashi, the second president) employed
1952	Sakae-cho Factory established in Sakae-cho, Kita-ku, Tokyo
1956	Research Department established as part of the Manufacturing Department at Sakae-cho Factory
1964	Oji Sakae-cho Laboratory opened and KOSÉ’s laboratory system established
1988	Itabashi Laboratory opened at Azusawa, Itabashi-ku
1991	Manufacturing Technology Laboratory opened at Sayama Factory
1992	Construction of Itabashi Laboratory completed and laboratory opened as KOSÉ Fundamental Research Laboratory dedicated to fundamental research
2004	Construction of Oji Sakae-cho Laboratory completed and laboratory opened as KOSÉ Research Laboratory dedicated to product research KOSÉ Research Laboratory-Technical Research Center opened in Sakae-cho, Kita-ku