Soy wax candles are made from soybean oil from the soybean plant, containing a high proportion of stearic acid. It is typically softer than paraffin wax and with a lower melting temperature. Paraffin candles include probable carcinogens toluene and benzene and other toxic chemicals, including methyl ethyl ketone and naphthalene. Where to buy handmade soy candles? Just come to check out Sweet Dream Beauty's complete collection of best soy candles for more information and available choices. The best Christmas gift for her.