In my experience, in the US, harmful chemicals in products are a lot more credible than climate change, to people who listen to the Right. An example that has been in the news: pregnant women taking Tylenol.

For whatever reason, a “natural” lifestyle is more compatible with American conservative politics than an environmentally responsible lifestyle. I think the two can easily overlap, but the former would have to emphasized for it to get any traction with that audience.

EDIT: Replace “for whatever reason” with “due to the influence of the fossil fuel industry”