Buy this 500g jar of 100% vegetable soy wax! With this 100% vegetable soy wax, candles by the dozen are yours! Add a few drops of fragrance, have fun decorating it with dried or pressed flowers and voila! What is soy wax? Soy wax is a response to a public desire for natural, plant-based, renewable products and a certain desire to move away from petroleum-based products, including paraffin.