Brooke Martin
Candles are widely used to create a soothing atmosphere, but some candles contain toxic ingredients that can harm your health and the environment. While there is some debate about the extent of the danger, certain candle ingredients have been identified as harmful. These include paraffin wax, a petroleum byproduct that releases toxic chemicals like benzene, toluene, formaldehyde, and volatile organic compounds (VOCs) when burned. Synthetic fragrances and dyes, commonly found in scented candles, can also contain hidden toxins like phthalates, which are known endocrine disruptors. Lead wicks, although less common today, can release toxic lead fumes that cause health issues such as headaches and dizziness. To minimize exposure to these harmful ingredients, experts recommend opting for candles made from natural materials like beeswax, soy wax, or coconut wax, and avoiding synthetic fragrances and dyes. Proper ventilation is also crucial when burning candles to reduce the risk of inhaling potentially harmful chemicals.
Characteristics and Values of Harmful Ingredients in Candles
| Characteristics | Values |
|---|---|
| Volatile organic compounds (VOCs) | Found in scented candles, these compounds are released both before and after being lit. Exposure to VOCs can cause headaches, eye, nose, or throat irritation, nausea, and damage to the liver, kidneys, or central nervous system. |
| Synthetic fragrances | Synthetic fragrances can contain hidden toxins like phthalates, which can disrupt hormones and cause endocrine and reproductive issues. Strongly scented candles are likely to contain artificial and potentially toxic fragrance chemicals. |
| Paraffin wax | A byproduct of petroleum refining, paraffin wax releases harmful chemicals when burned, including benzene, toluene, and formaldehyde, which are known carcinogens and can cause respiratory issues. |
| Synthetic dyes | Candles with vivid-colored wax are likely to contain synthetic dyes, which can release harmful chemicals when heated. |
| Lead wicks | Lead wicks were banned in 2003 due to concerns over lead poisoning, especially in children. |
| Inadequate ventilation | Burning candles in inadequately ventilated spaces can increase exposure to harmful chemicals and pollutants. |
| Allergens | Synthetic fragrances and scented candles can trigger allergic reactions or sensitivities in some individuals. |
| Petrochemicals | Candles derived from petroleum-based products, such as paraffin wax, can contribute to indoor air pollution. |
| Undisclosed ingredients | Companies are not required to disclose specific ingredients in their fragrances, leaving the potential for undisclosed toxic chemicals. |
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What You'll Learn
Paraffin wax and other petroleum byproducts
Paraffin wax is a by-product of petroleum, created during the process of refining crude oil into fuels like gasoline. It is a hard, translucent substance derived from a mixture of solid straight-chain hydrocarbons, with a melting point ranging from 120° to 150°F. Paraffin wax has been a staple in candle-making since its introduction in the 1850s, and it is estimated that 95% of candles on the market today use this type of wax. This is due to its affordability, consistent burn, ability to hold fragrance and colour, and attractive finish.
However, paraffin wax has been found to contain known carcinogens, including benzene, toluene, and naphthalene. These chemicals are released into the air when the wax is burned, and exposure to them has been linked to several health issues. For example, toluene mainly affects the central nervous system, and exposure to it can result in headaches, nausea, dizziness, insomnia, and fatigue. Benzene is also a toxic chemical, and exposure to it has been associated with an increased risk of cancer.
In addition to the health risks, paraffin wax also has a negative impact on the environment. As a byproduct of crude oil, a non-renewable resource, its production contributes to air pollution and environmental degradation. Crude oil extraction destroys ecosystems, endangers wildlife, and has resulted in catastrophic oil spills.
If you are concerned about the potential health and environmental risks of paraffin wax, there are several alternative options available. Natural waxes such as beeswax, soy wax, coconut wax, and vegetable wax are considered safer and greener choices. These waxes are renewable, sustainable, and naturally sourced, and they produce less soot and toxic chemicals than paraffin wax.
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Synthetic fragrances and undisclosed ingredients
Candles are often used to create a soothing atmosphere, adding warmth and fragrance to any room. However, many candles on the market contain toxic ingredients that can be harmful to health and the environment. One of the primary concerns with candles is the use of synthetic fragrances, which can release harmful chemicals into the air.
Synthetic fragrances are commonly found in scented candles and are made from synthetic perfumes or fragrance oils. These fragrances are typically derived from petroleum, which is a fossil fuel. When burned, synthetic fragrances can release volatile organic compounds (VOCs), including known carcinogens such as benzene and formaldehyde. Exposure to VOCs has been linked to various health issues, including headaches, eye and throat irritation, nausea, and potential damage to vital organs like the liver and kidneys.
In addition to synthetic fragrances, undisclosed ingredients in candles can also pose health risks. Many candle manufacturers do not list all the ingredients used, leaving consumers unaware of the potential dangers. One such undisclosed ingredient is paraffin wax, a petroleum byproduct commonly used in candles. Paraffin wax releases harmful chemicals when burned, including benzene and toluene, which are known carcinogens linked to respiratory issues and indoor air pollution.
Another undisclosed ingredient of concern is lead, which has historically been used in wicks. Lead-core wicks can release dangerous levels of lead into the air, exceeding pollution standards and posing significant health risks, especially to children. Lead exposure has been linked to hormone disruption, behavioural problems, and learning disabilities.
To avoid the potential dangers of synthetic fragrances and undisclosed ingredients, it is recommended to choose candles made from natural materials, such as beeswax, soy wax, or coconut wax. These natural alternatives burn cleaner and longer, reducing the release of harmful toxins into the air. Additionally, opting for candles scented with essential oils rather than synthetic perfumes can further minimise exposure to pollutants.
By being mindful of the ingredients and choosing candles made from natural, disclosed ingredients, consumers can enjoy the warmth and fragrance of candles without compromising their health and the environment.
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Carcinogens and other toxic chemicals
Candles are a popular way to add fragrance and ambience to a space, but they can also contain harmful ingredients that may be released when burned. One of the main issues with candles is the use of petroleum-based waxes, such as paraffin wax, which is a by-product of petroleum refining and can release harmful chemicals when burned. These chemicals include benzene and toluene, which are known carcinogens and can cause respiratory issues. In addition to benzene and toluene, other toxic chemicals released from burning paraffin wax include formaldehyde, acetone, and phthalates. Formaldehyde and benzene are also released from scented candles and have been linked to an increased risk of cancer.
The use of synthetic fragrances in candles is another concern, as these can contain hidden toxins like phthalates, which can disrupt hormones and cause reproductive issues. Synthetic fragrances can also trigger allergic reactions and sensitivities. Due to the "fragrance loophole" in federal labelling laws, companies are not required to disclose the specific ingredients in their fragrances, so it can be difficult to know if a candle contains these toxins.
To reduce exposure to these harmful chemicals, it is recommended to choose candles made from natural materials, such as beeswax, soy wax, or coconut wax, and scented with essential oils rather than synthetic perfumes. These natural candles release fewer toxic chemicals and less soot, making them a safer and cleaner-burning option. It is also important to ensure that the space is well-ventilated when burning candles to reduce the risk of inhaling harmful chemicals.
While there is some debate about the potential health risks of burning candles, it is clear that some candles do contain and release toxic and carcinogenic chemicals. By being mindful of the type of wax and fragrance used, and ensuring proper ventilation, individuals can take steps to protect their health and enjoy candles safely.
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Lead wicks and heavy metal exposure
Candles have been a source of light and decoration for centuries. However, with the invention of electricity and light bulbs, candles are now mostly used for decorative purposes, aromatherapy, and creating a soothing ambiance.
While candles can create a tranquil atmosphere, some candles can be harmful to human health due to the emission of toxic chemicals. One of the harmful ingredients in candles is lead wicks, which were previously used in candle wicks. Lead wicks have been a significant concern due to the potential risk of heavy metal exposure and lead poisoning, especially in children.
Lead was previously used in candle wicks as a stiffening agent to keep the wick upright and prevent it from falling into the molten wax. However, when a candle with a lead wick is burned, it can release lead particles into the air, which can then be deposited on indoor surfaces. These lead particles can be inhaled or ingested, leading to potential health risks.
In 2003, the U.S. Consumer Product Safety Commission (CPSC) banned the sale, manufacture, and import of candles with lead wicks due to concerns over lead poisoning. Most candle manufacturers had stopped using lead wicks in the 1970s, but the ban further ensured consumer safety. The ban included requirements for labeling, testing, and maintaining records to comply with the elimination of lead-cored wicks.
The toxic effects of lead exposure are well-documented. Lead poisoning can cause neurological damage, delayed mental and physical development, attention and learning deficiencies, and hearing problems. There is no "safe" level of lead in the blood, and even low levels of lead exposure can have adverse effects on health. Therefore, it is essential to be cautious and avoid burning candles with lead wicks.
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Allergens and asthma irritants
There is some debate about whether burning candles is harmful to health. Some people claim that candles release potentially harmful toxins, while others argue that candles do not contain enough toxins to pose a significant health threat. However, certain candle ingredients may be allergens or asthma irritants.
Candles made from natural sources, such as beeswax, soy wax, or plant-based waxes like coconut or palm wax, are generally considered safer and less likely to contain harmful toxins. These natural candles burn cleaner and produce less soot and toxic chemicals than candles made from paraffin wax, a petroleum byproduct. Paraffin wax has been found to release harmful chemicals when burned, including benzene and toluene, which are known carcinogens and can cause respiratory issues.
Synthetic fragrances in candles can also contain hidden toxins like phthalates, which can disrupt hormones and cause endocrine problems and reproductive harm. These fragrances can trigger allergic reactions or sensitivities and are often listed under generic terms like "fragrance" or "parfum", making it difficult for consumers to identify the specific ingredients. Strongly scented candles are more likely to contain artificial and potentially toxic fragrance chemicals.
In addition to fragrances, candle wicks can also pose a danger. In 2003, the U.S. Consumer Product Safety Commission (CPSC) banned the sale and manufacture of candles with lead wicks due to concerns about lead poisoning. However, it is important to note that natural alternatives, such as cotton wicks, are available and ensure a safer, cleaner burn.
To minimize the potential health risks associated with allergens and asthma irritants in candles, it is recommended to choose candles made from natural materials, scented with essential oils rather than synthetic perfumes, and certified as non-toxic by independent organizations like MADE SAFE®. Ventilating the space after burning a candle can also help reduce exposure to any potentially harmful chemicals.
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Frequently asked questions
Some candles contain paraffin wax, a byproduct of petroleum refining. When burned, paraffin wax releases harmful chemicals, including benzene and toluene, which are known carcinogens.
Exposure to benzene and toluene can cause respiratory issues, headaches, dizziness, and even lead poisoning.
Some candles contain synthetic fragrances, which can include hidden toxins like phthalates. These chemicals can disrupt hormones and cause endocrine and reproductive issues.
Choose candles made from natural materials such as beeswax, soy wax, or coconut wax. Avoid paraffin wax and synthetic fragrances. Ensure the space is well-ventilated when burning candles and trim the wicks before use.
Yes, there are candle companies, like Malibu Apothecary, that create candles with natural ingredients. Their candles are made with coconut and soy wax, phthalate-free fragrances, and cotton wicks.
