In Japan, industrial chemicals are primarily regulated under four different laws, each of which has its own chemical inventory. These inventories define different categories of chemical substances subject to specific regulatory requirements.
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On 18 July 2025, The Ministry of Health, Labour, and Welfare (MHLW) in Japan released a list of substances that have been found to irritate skin or absorb through the skin....
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Update: On 28 February 2025, MHLW published the revised list of chemicals causing skin irritation. This revised list contains updated provisions for skin irritants. More information can be found here. Original...
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