Soy wax is a renewable source and is American grown from our own soy bean farmers. It is carbon neutral and burns very clean. Soy wax not only burns cleaner than paraffin wax but lasts longer and retains fragrance better and burns slower. Soy wax does not emit harmful ugly toxins into your space and is a good choice for a clean burning candle. Overall, soy wax is a much better wax to use for a clean burning candle with less soot.