Why Soy Candles Are Often a Better Choice for People with Allergies

If you love filling your home with beautiful scents but struggle with allergies, asthma, or fragrance sensitivities, the type of candle you burn matters more than you might think. While no candle is completely free of emissions, soy-based candles are generally considered a cleaner-burning alternative to traditional paraffin candles, making them a popular choice for people looking to reduce indoor air pollutants.

What Is the Difference Between Soy and Paraffin Wax?

Paraffin wax is a petroleum byproduct created during the oil refining process. It's inexpensive, which is why it's commonly used in mass-produced candles.

Soy wax, on the other hand, is made from hydrogenated soybean oil. As a plant-based wax, it has become increasingly popular among candle makers and consumers looking for a more renewable and cleaner-burning option.

Why Cleaner Burning Matters

Whenever you burn a candle, combustion releases tiny particles and gases into the air. Research has shown that paraffin candles generally produce more soot than soy candles.

Soot isn't just something that collects on walls or candle jars—it also becomes part of the air you breathe. For individuals with allergies, asthma, or other respiratory sensitivities, additional airborne particles may contribute to irritation or discomfort.

Soy candles typically produce:

Less visible soot
Fewer airborne particulates
A cleaner burn when properly wicked and maintained

While these differences don't make soy candles "allergy-proof," they can help reduce unnecessary indoor air pollution.

Fewer Petroleum-Based Emissions

Studies have found that burning paraffin wax can release volatile organic compounds (VOCs), including substances such as benzene and toluene. These compounds are associated with petroleum-based fuels and may contribute to indoor air pollution, particularly in poorly ventilated spaces.

Soy wax has been shown to emit fewer of these compounds because it is derived from vegetable oil rather than petroleum.

Fragrance Still Matters

It's important to remember that wax is only one part of the equation.

Many people who believe they're reacting to a candle are actually sensitive to the fragrance oils rather than the wax itself. Highly fragranced candles—whether soy or paraffin—can still trigger headaches, sneezing, or respiratory irritation in sensitive individuals.

If you have allergies, look for candles made with:

High-quality fragrance oils
Phthalate-free fragrances
Cotton or wood wicks that are free from lead
Moderate fragrance loads instead of overpowering scents
A Better Choice Doesn't Mean a Risk-Free Choice

No candle is completely free from emissions. Every burning flame creates some level of particulate matter and gases.

Experts generally recommend:

Burning candles in well-ventilated rooms.
Trimming the wick to about ¼ inch before each use.
Avoiding burning candles for several hours at a time.
Extinguishing candles if soot begins to form or the flame becomes unusually large.

These simple habits can help improve indoor air quality regardless of the type of candle you choose.

The Bottom Line

If you have allergies or respiratory sensitivities, soy candles may be a better option than traditional paraffin candles because they generally burn cleaner and produce less soot. However, choosing a well-made candle with high-quality fragrance ingredients and practicing safe candle use are just as important as selecting the wax itself.

At the end of the day, the best candle is one that allows you to enjoy a cozy atmosphere without compromising your comfort. For many people with sensitivities, that starts with choosing a thoughtfully crafted soy candle by choosing a hand-poured product from Lor'Jas Handmade.

Sources:

Consumer Reports. Are Candles Bad for Your Health? Reviews research showing paraffin candles produce more soot and that soy candles generally burn cleaner, while noting that more research is needed on long-term health effects. Consumer Reports

Medical News Today. Can Burning Candles Be Harmful to Health? Summarizes evidence on VOC emissions, fragrance sensitivity, and candle safety recommendations. 
Medical News Today

Healthline. Are Candles Bad for You? Myths, Science, and More. Reviews current evidence on paraffin, soy, and beeswax candles, including common misconceptions. 
Healthline

Associated Press. Like many holiday traditions, lighting candles and fireplaces is best done in moderation. Quotes respiratory health experts explaining that all candles produce some emissions and emphasizing ventilation and moderation. AP News