There are many chemicals that are harmful. However, you will be amazed at how many various exposures people have to 2-butoxyethanol and how little it takes to cause harm ... the more exposure the worse harm or add on issues, of course

Household Data Base 2% in a product may be OK (although a woman who has done more research than me says 1/10th of 1% is the OK amount in a product)

"Doctor help us find the fatigue" .... my favorite research summary *

After the NJ Hazard one. There it comments on the effect to the testes. Actually you have to piece together several MSDS (Material Safety Data Sheets) to get a good picture of what it does. They have no clue about how much exposure is OK. They have no clue as to the real source of exposure (Vapors in eyes & at cuticle areas) But that's just my opinion based on a painter who shared this with his trainee

A general search should show several pages of research

If more than one person is coming down with similar or the same health issues, people should take note

If you wonder about other chemicals and if any are in your system, I would have your doctor consult with a toxicologist or someone like Dr. Crinnion or Dr Rea