Low-Tox Candles vs Regular Candles: What's Actually in Your Wax?
From the outside, a low-tox candle and a regular candle can look identical. Same jar, same wick, same general concept. The difference is what's burning inside and what that puts into the air in your home.
Here's the breakdown.
What's in a regular candle
Most candles sold in supermarkets, department stores, and even some homewares boutiques are made with paraffin wax. Paraffin is a petroleum derivative, a refined product of crude oil processing. When it burns, it releases compounds including benzene, toluene, formaldehyde, and acetaldehyde. Benzene and toluene are classified as carcinogens by the International Agency for Research on Cancer.
The fragrance in most conventional candles is synthetic. The ingredient listed as "fragrance" or "parfum" can represent a proprietary blend of dozens of chemical compounds. Because fragrance formulas are legally protected in many markets, brands aren't required to disclose what's in them.
Add a metal-core wick and you have a third source of airborne particles.
None of this means burning a paraffin candle occasionally in a large, well-ventilated room is a health crisis. The concentrations in typical use are relatively low. But for someone burning candles nightly in a bedroom, the cumulative exposure picture is different.
What's in a low-tox candle
A genuine low-tox candle replaces all of those inputs with cleaner alternatives.
Wax: Natural soy wax, made from hydrogenated soybean oil, doesn't produce the petrochemical compounds that paraffin does when it burns. The soot output is dramatically lower. Soy wax is also a renewable agricultural product rather than a petroleum derivative.
Fragrance: Pure essential oils, listed individually on the label, rather than synthetic "fragrance." You should be able to see exactly which oils are used. Lavender. Cedarwood. Bergamot. The compounds in pure essential oils have been studied for their effects. The compounds in synthetic fragrance blends often have not.
Wick: A natural cotton wick produces no metal particles and burns cleanly when properly sized for the vessel.
The 'natural' label problem
Here's where it gets complicated. "Natural candle" is not a regulated term in Australia. Neither is "clean burn." Brands apply these phrases freely without any requirement to substantiate them. A candle can contain 90% paraffin wax and 10% soy wax and be marketed as a "soy candle" in some markets.
What to look for instead:
- 100% soy wax or 100% beeswax, with "100%" explicitly stated
- Essential oils named individually on the label, not "fragrance" or "natural fragrance"
- Cotton or wood wick stated clearly
- Phthalate-free explicitly noted
- No paraffin stated or inferable from the wax description
Does it make a real difference for Australians?
For occasional candle users in large, well-ventilated homes, the practical difference in health outcomes is probably small. For people who burn candles regularly in bedrooms, nurseries, or smaller spaces, the cumulative difference in what they're inhaling over months and years is more significant.
Beyond the health argument, there's the performance argument. Natural soy wax candles scented with pure essential oils tend to have a more nuanced, sustained scent throw. They don't overwhelm immediately and fade fast. They build gradually and last. That's partly the wax burning cooler, partly the essential oils releasing more slowly at lower temperatures.
Our commitment
Every candle in our range is made with 100% natural soy wax, pure essential oils, and a cotton wick. No paraffin, no synthetic fragrance, no phthalates. Made in Australia, the ingredients on every label are the complete picture.
Browse our low-tox soy wax candles range, or use the scent profiles guide to find the right blend for your home.
Frequently Asked Questions
Are paraffin candles toxic?
Paraffin candles release volatile organic compounds including benzene and toluene when burned, both classified as carcinogens. In occasional use in a well-ventilated room, the exposure is relatively low. For someone burning them nightly in a bedroom with limited airflow, the cumulative exposure is worth considering.
What candles are safe to burn indoors?
The safest candles to burn indoors are made with 100% natural soy wax or beeswax, scented with pure essential oils listed individually on the label, and use a cotton or wood wick. These produce significantly less soot and fewer chemical compounds than conventional paraffin candles.
What is the healthiest candle to burn?
A 100% soy wax candle made with pure essential oils and a cotton wick is the cleanest-burning option widely available in Australia. It minimises soot, avoids synthetic fragrance compounds, and doesn't produce the petrochemical by-products of paraffin wax.
How can I tell if a candle is genuinely non-toxic?
Read the label rather than the marketing. Look for 100% soy wax stated explicitly, essential oils listed individually by plant name, and clear statements of no paraffin, no synthetic fragrance, and no phthalates. If the ingredients list just says "fragrance" without naming the oils, that's almost always synthetic.
Are soy candles better for indoor air quality?
Yes. Soy wax burns at a lower temperature than paraffin, producing less soot and fewer volatile organic compounds. When paired with pure essential oil fragrance rather than synthetic, a 100% soy wax candle is a meaningfully cleaner choice for regular indoor use.
Can candles affect air quality in a small room?
Yes. Burning candles in a small, poorly ventilated room can measurably affect indoor air quality, particularly with paraffin candles and synthetic fragrance. If you burn candles regularly in your bedroom, choosing a natural soy wax option with pure essential oils and ensuring some ventilation in the room makes a practical difference.