Not just borne of a desire for aesthetic appeal, there is a practical reason to examine for dyes. Dyes in cleaners can help distinguish potentially harmful liquids from plain water, helping to limit the likelihood of accidental exposure. Dyes also can help when you are cleaning, allowing you to know which parts of a surface have been covered and cleaned.
As for preservatives in cleaners, these additions help make sure that your cleaning supplies don't go bad and become happy homes for microbes and germs. Preservatives extend and protect the life of your cleaning supplies.
Bottom Line: Families get to make their own choice on what type of cleaner they prefer to use, but arguments can be made in favor of dyes and preservatives in our cleaners.

