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The US Cosmetic Ingredient Review (CIR) - an independent expert panel representing consumers, industry and government set up to assess the safety of ingredients used in cosmetics - published an ingredient alert for the chemicals sodium lauryl sulfate, sodium laureth sulfate (collectively, SLS) and ammonium lauryl sulfate. This ingredient alert warned that SLS can irritate the eyes and skin, and its irritant properties are higher at greater concentrations. Additionally, the longer SLS is in contact with the skin, the more likely it is to irritate. Hence, the alert warned that SLS is safe for brief use after which it is rinsed away, as used in the shower or when brushing teeth. In products which remain on the skin for prolonged periods of time, such as moisturiser and cosmetics, SLS concentrations should not exceed 1%.2 In Australia, the National Industrial Chemicals Notifications and Assessment Scheme (NICNAS) reviewed studies on the safety of sodium lauryl sulfate. It found only one study designed to examine the carcinogenic effects of sodium lauryl sulfate, which was done on beagle dogs. This study found that sodium lauryl sulfate was not carcinogenic in dogs. NICNAS also found that even at high doses, sodium lauryl sulfate had no effect on fertility or development.3 Sodium laureth sulfate has an emulsifying action (combining oil and water), which is how it removes oil and soil. Like sodium lauryl sulfate, it has been shown to irritate the eyes and skin in human and animal studies. The severity of irritation increases with the concentration of sodium laureth sulfate. Like sodium lauryl sulfate, there is no evidence that sodium laureth sulfate is carcinogenic. The CIR has assessed the safety of sodium lauryl sulfate and sodium laureth sulfate and concluded that they are safe.2

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米国の化粧品原料レビュー（CIR） - 消費者、産業界および政府を代表する独立した専門家委員会が、化粧品に使用される原料の安全性を評価するために設立 - ラウリル硫酸アンモニウム。この成分警戒戦争

BACK INTO ENGLISH

US Cosmetic Raw Material Review (CIR) - An independent expert committee representing consumers, industry and government established to evaluate the safety of ingredients used in cosmetics - ammonium lauryl sulfate. This ingredient warning war

INTO JAPANESE

米国化粧品原料レビュー（CIR） - 消費者、産業界、および政府を代表する独立した専門家委員会が、化粧品に使用される成分 - ラウリル硫酸アンモニウムの安全性を評価するために設立されました。この成分警告戦争

BACK INTO ENGLISH

US Cosmetic Ingredient Review (CIR) - An independent expert committee representing consumers, industry, and government was established to evaluate the safety of ammonium lauryl sulfate ingredients used in cosmetics. This ingredient warning war

INTO JAPANESE

米国化粧品原料レビュー（CIR） - 消費者、業界、および政府を代表する独立した専門家委員会が、化粧品に使用されるラウリル硫酸アンモニウム原料の安全性を評価するために設立されました。この成分警告戦争

BACK INTO ENGLISH

US Cosmetic Raw Material Review (CIR) - An independent expert committee representing consumers, industry, and government was established to evaluate the safety of ammonium lauryl sulfate raw materials used in cosmetics. This ingredient warning war

INTO JAPANESE

米国化粧品原料レビュー（CIR） - 消費者、業界、および政府を代表する独立した専門家委員会が、化粧品に使用されるラウリル硫酸アンモニウム原料の安全性を評価するために設立されました。この成分警告戦争

BACK INTO ENGLISH

US Cosmetic Raw Material Review (CIR) - An independent expert committee representing consumers, industry, and government was established to evaluate the safety of ammonium lauryl sulfate raw materials used in cosmetics. This ingredient warning war