Biocides kill bacteria and nasty microorganisms from growing and spoiling items they are added to, but they may also be causing allergic reactions and even contributing to antibiotic resistance. Biocides are added to diverse consumer products, especially detergents, disinfectants and cosmetics.

Contact Allergy

Some people are now developing contact dermatitis allergy to their green laundry detergents, and one reason is because of these biocides. Biocides, for example these polysyllabic names like benzisothiazolinone and methylisothiazolinone, can give you rashes or add to adverse reactions to antibiotics you may need in your future.

Look at this article published in Contact Dermatitis. 2014 Jul;71(1):41-8. doi: 10.1111/cod.12249. The title of the article is, “The dramatic increase in the rate of methylisothiazolinone contact allergy in Belgium: a multicenter study”.

This study discusses that the rate of contact allergy and allergic contact dermatitis caused by methylisothiazolinone (MI) is dramatically increasing.

So what are some really “clean” alternatives?

Use baking soda, or vinegar, or both, or go to  and take a look at their inexpensive biocide free products. In Hormone Deception I give recipes (available on or at


Many “non toxic green cleaning products” on the market also contain toxic biocides, like this one… isothiazolinone.


Check out your hand dishwashing products, cleaners, disinfectants and cosmetics.

It’s not healthy to be persistently exposed to even low levels of biocides. Even in green products.

And there you have it.