Shiseido Company, Limited

Nof Corporation

Yoshihiro Ohhata

Masaaki Sugino

Keiichi Uehara

Yoshikazu Inoue

Yuji Tsutsumi

Akio Kawabata

Hideto Yamamoto

Hiroyuki Takeo

Isao Takayanagi

Yoshihiro Yokogawa

Takeshi Matsuo

A method for inhibiting the oxidation of oils and fats or fatty acids which comprises adding an antioxidant and an oxyacid having an average particle size of 200 .mu.m or less to said oils and fats or fatty acids. According to this method, the oxyacid is easily dispersed or dissolved in said oils and fats or fatty acids, and the oxidation inhibiting effect is remarkably improved without deteriorating the quality of the oils and fats or fatty acids.

Method for inhibiting oxidation of oils and fats or fatty acids

A dermatological external agent such as a pharmaceutical, quasi-drug, or cosmetic comprising tetrahydroabietic acid, a salt thereof, and hydrogenated rosin and a salt thereof, formulated therein, has an excellent antibacterial action, is not harmful to the human body, and has an excellent stability.

Dermatologial external agent

Growing community of inventors

Saitama, Japan

Yoshihiro Ohhata