I have difficulty recommending something like a labelling or an information-based approach to this.
As you know, I'm worrying a lot about the disparities and the different capacities people have to spend more to buy the bottle that's labelled BPA-free or the sofa that doesn't have flame retardants in it.
The better approach is for us to decide which substances we think are toxic and to take mandatory regulatory action that's going to reduce exposures for everyone over time, rather than to take this information-based approach.