Most modern candles are made from paraffin wax. ... The researchers found that the level of chemicals released by each type of candle was well below the amount that would cause human health problems. At this time, there's no conclusive evidence that burning candle wax is damaging to your health.

Which candles are toxic?

Most candles are made of paraffin wax (a petroleum waste product that is chemically bleached), which creates highly toxic benzene and toluene (both are known carcinogens) when burned.

Are any candles non-toxic?

While some non-toxic candles can be pricey, the Lavender candle from Pure Plant Home is a great affordable option. This vegan, GMO-free candle is hand-poured with a blend of sustainably-sourced coconut wax and real essential oils, and you can't beat that $8 price tag.