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As approximately 80% of infections are transmitted through hands, Washing hands is one of the suggestive health care principles that children should be encouraged to.
Rainbow Soap not only provokes the curiosity of children and persuades them to wash their hands but also teaches them the rainbow colors without using common tools like papers and pencils that waste the natural resources.
After regular use of this soap and disappearing superficial layers, colors appear consecutively.
Islamic Azad University
Central Tehran Branch
Soheyl Ghiami Kourosh Mahdavi Elmira Cheraghi Saba Sabour Sadeghzadeh