Soy Wax - Quick Facts: The wax of soy candles is, of course, made from soybeans. What does this mean? Soy is a natural product, so it is renewable (source). It is not toxic, carcinogenic, allergy-inducing, or a pollutant, like its popular paraffin wax counterpart (source) Smells even better because it burns slowly, holds essential oils better, and gradually and continuously release the scent instead overw[...]