The Ministry of Health, Labour and Welfare (MHLW) of Japan has established the List of Ingredients Restricted in Cosmetic Products under the Standards for Cosmetics, which specifies substances that may only be used under certain conditions—such as specific concentration limits, intended purposes, or application areas—in order to ensure consumer safety.

The list includes 18 ingredients restricted to use, each accompanied by detailed information such as the Ingredient Name, INCI Name, CAS Number, Maximum Concentration in Ready-for-Use Preparations, etc.

Cosmetics and Quasi-drug Notification in Japan

Japan-List of Ingredients Restricted in Cosmetic Products

Maximum concentration in ready for use preparation