Sourcing non-herbal materials for natural medicine

How do y'all go about making contacts and sourcing your non-herbal medicinal supplies (like beeswax, for example).
I know there are more than a few bee farms in my area and I'm trying to figure out the best way to ask for beeswax. Do I just call and ask if they sell it?
What questions should I ask about how they keep their hives; are chemicals often used in bee-keeping?

Or do y'all have some go-to sources for materials that sell online? Getting out and about right now is difficult due to my daughter's health, so shopping online is certainly the most convenient, but I'd much rather shop locally and support someone who's using sustainable methods.

We have several beekeepers who have thier honey sold in locally owned stores. In Tennessee they are required to have their contact information on the labels. I called them up, and asked  what their practices were. They were even willing to ship the wax to me.