Place the candle in the water. Light the candle with a match. Place the vase or glass upside down over the candle, in the water. Watch as the water slowly fills the glass.

If you’re a candle lover, you have probably seen some brands offer soy or beeswax versions as natural alternatives to typical wax options. But are conventional candles actually bad for you?

When buying candles, there are several factors to consider, from potentially harmful fragrance ingredients to reusing the candle jar to even considering the candle’s packaging.

Like candles, essential oils are not regulated or tested to ensure they are free of contaminants.” Visit these sites to learn which essential oils may be harmful for children, cats and dogs.

Below, experts share the science behind potentially harmful candle emissions, their concerns surrounding the lack of regulation, and ways to make the best decision for you. What the candle science ...