Beeswax is, bizarrely enough, a natural plastic. It is a complex mixture of natural fatty alcohols, waxes, hydrocarbons, fats, sterols, esters, and a whole range of really clever natural chemicals made by the bees.
If you are a small-scale beekeeper the choices are different. When evaluating the choice of beehive wax foundation to use, the natural honey wax foundation is probably the safer choice. You can market your honey as “plastic-free” and charge a higher price.