Dear reader, how do you destinguish? I try my best to use the precautionary principle:
[…] if an action or policy has a suspected risk of causing harm to the public or to the environment, in the absence of scientific consensus that the action or policy is harmful, the burden of proof that it is not harmful falls on those taking an act.
It does not go as far as forbidding any new action or policy just because all consequences cannot be known in advance-to do so would be so reductionist as to render it irrelevant.
I agree on the last phrase stating that FORBIDDING new chemicals and products is not a good idea (on a policy level). That said I strongly advice you to be very careful when you buy things and the best thing to do in most cases is to go for raw materials that you can trust (locally (go ahead and verify for yourself!) ecologically produced materials). This way you can then learn to craft what you need and then you know exactly what has been applied. I have done this myself to create a duvet to my child and it was marvellous as a fed-up-super-consumer to create something from scratch.
The links below could maybee help you reduce the number of toxins in your surrounding: