Are paraffin candles bad for you?

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SA CANDLE GUIDE · ASK & ANSWER ·  
Short answer

Mostly no. For most people burning a paraffin candle now and then in a ventilated room, the evidence in South Africa and abroad doesn't show a clear health risk. The large studies put paraffin emissions well within safe limits. The practical problems are soot from a poor wick and undisclosed fragrance, and both are easy to avoid.

What the research shows

The scary claim you've probably read is that paraffin releases carcinogens like benzene and toluene. Its most-quoted source is a 2009 South Carolina State University study that was never published in a peer-reviewed journal, and its method has been picked apart since. The larger, better-run studies clear paraffin for everyday use. In 2007 the Bayreuth Institute of Environmental Research in Germany tested paraffin, soy, stearin, and beeswax across more than 300 chemicals, and the combustion byproducts of every wax type came out close to identical. A 2014 review in Regulatory Toxicology and Pharmacology found scented candle emissions fall well below international exposure limits under normal use. The Cleveland Clinic's position is that there isn't enough strong evidence to call candles dangerous to your health, a view the National Candle Association echoes.

What shapes the air in your room

Two things do more for your air than the wax. The first is the wick. A metal-core wick, or a cotton one left too long, burns dirty and leaves that grey ring of soot on the glass. That soot traces back to the wick and your burn habits. Trim a cotton or wood wick to about 5 mm before each burn and the jar stays clear. The second is fragrance: the single word "fragrance" on a label can hide dozens of ingredients, including phthalates. Candles made with IFRA-compliant oils, the global fragrance safety standard, give you a fragrance you can trust.

How Mylk thinks about it

We're a Cape Town candle brand, and parents ask us this all the time, usually some version of "is this safe around my cat or my baby?" Our honest answer is that the wax matters less than the wick and the oils. We pour a coconut-soy blend with metal-free cotton wicks and IFRA-compliant perfume-grade oils, and we leave paraffin, parabens, and phthalates out of every formula. We power-burn each batch for about 45 hours to check the glass stays clean. If you want clean-burning soy candles where the wax, wick, and fragrance are listed in the open, that disclosure is the signal worth looking for, whatever brand you choose.

For the wider picture, including how soy compares and which local makers disclose everything, read our guide to non-toxic candles in South Africa.

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