If you use an alcohol-based product instead of soap and water, make sure it contains at least sixty percent alcohol.

VOA: special.2010.09.29

You take a shower, you use this soap, the fat's all gone.

洗个澡,喝碗汤,脂肪就少了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选