What candles are bad for hormones? - The Environmental Literacy Council (2025)

Candles – they’re the unsung heroes of ambiance, creating cozy havens with their warm glow and enticing scents. But before you light another wick, it’s crucial to understand that not all candles are created equal. Some, lurking innocently on your shelves, might be subtly sabotaging your hormonal balance. Specifically, candles that contain synthetic fragrances, are made with paraffin wax, and use lead-core wicks are the worst offenders when it comes to hormone disruption. These ingredients can release harmful chemicals into the air, potentially leading to various health issues.

The Culprits Behind Hormone Havoc in Candles

The primary suspects in the candle-induced hormone disruption drama are:

• Synthetic Fragrances: These are the biggest offenders. The term “fragrance” on a candle label is often a catch-all for a cocktail of hundreds of undisclosed chemicals. Many of these are phthalates, known endocrine disruptors that mimic or interfere with the body’s natural hormones, particularly estrogen and testosterone. The potential consequences range from fertility problems and developmental issues to an increased risk of certain cancers. Furthermore, the general term “fragrance” can include volatile organic compounds (VOCs) and allergens, contributing to respiratory irritation and other health concerns. Candles with extremely strong scents are more likely to be made with artificial and potentially toxic fragrance chemicals.

• Paraffin Wax: Derived from petroleum, paraffin wax is a common and inexpensive candle-making material. However, when burned, it can release benzene and toluene into the air. These are known carcinogens that can also contribute to respiratory issues and exacerbate asthma. While studies suggest that the levels of these chemicals released from candles are usually low, repeated exposure, especially in poorly ventilated spaces, is a valid cause for concern. Always skip oil-based paraffin waxes and opt for plant-based and beeswax candles only.

• Lead-Core Wicks: While largely phased out in many regions, some older or imported candles may still contain wicks with lead cores. Burning lead releases lead particles into the air, a potent neurotoxin that can cause developmental problems, neurological damage, and hormone disruption, especially in children and pregnant women.

• Certain Essential Oils: While essential oils are generally considered natural and safe, some, like lavender and tea tree oil, have been identified as potential endocrine disruptors. Researchers have linked persistent exposure to lavender oil products to premature breast development in girls and abnormal breast development in boys. This doesn’t necessarily mean you need to banish these oils entirely, but it’s important to be aware of potential effects, especially with prolonged or high-concentration exposure.

Identifying Hormone-Friendly Candles: What to Look For

To enjoy the ambiance of candles without compromising your health, prioritize candles made with natural and non-toxic ingredients:

• 100% Beeswax or Coconut Wax: These waxes are derived from natural sources and burn cleaner than paraffin, producing minimal soot and releasing no known harmful chemicals. Beeswax candles are also naturally scented with a light honey aroma. Coconut wax is a great choice for those looking for a good scent throw and clean burn. Soy wax is a better option than paraffin but can be more processed.

• 100% Cotton Wicks: Ensure that the candle has a 100% cotton wick or a wick made of paper or wood. These materials burn cleanly and are free of lead or other harmful metals. Look for the label confirming the absence of lead in the wick.

• 100% Essential Oils or Naturally Scented: Choose candles scented only with 100% pure essential oils. These natural scents are less likely to contain hormone-disrupting chemicals. Alternatively, opt for unscented candles.

• Ingredient Transparency: A reputable candle maker will fully disclose all ingredients used in their candles, giving you the information needed to make an informed decision.

The Importance of a Healthy Environment

It’s crucial to remember that candles are just one piece of the puzzle when it comes to hormone disruption. We are exposed to endocrine disruptors from a variety of sources, including plastics, pesticides, personal care products, and even some foods. By minimizing your exposure to these chemicals wherever possible, you can significantly reduce your risk of hormonal imbalances and related health issues. The Environmental Literacy Council provides resources on environmental health and sustainability, offering valuable information on these and other environmental toxins. You can learn more by visiting enviroliteracy.org.

FAQs: Decoding the Candle Conundrum

1. What exactly are endocrine disruptors?

Endocrine disruptors are chemicals that can interfere with the body’s endocrine system, which produces and regulates hormones. They can mimic or block hormones, leading to a variety of health problems.

2. How do I know if a candle has synthetic fragrances?

Look for the word “fragrance” on the label. If it doesn’t specify that the scent is derived from 100% essential oils, it’s likely synthetic. Also, if the scent is overly strong or artificial, it’s a red flag.

3. Are soy wax candles safe?

Soy wax is generally considered a better option than paraffin wax, as it’s derived from soybeans and burns cleaner. However, some soy wax candles may contain additives or synthetic fragrances. Always check the ingredient list carefully.

4. Can burning candles actually cause hormonal imbalance?

While the occasional burning of a paraffin candle might not cause significant harm, regular and prolonged exposure to candles containing synthetic fragrances or paraffin wax can contribute to hormonal imbalances, especially in sensitive individuals.

5. Are unscented candles the safest option?

Yes, unscented candles made with natural waxes and cotton wicks are generally the safest option, as they eliminate the risk of exposure to synthetic fragrances.

6. Are Yankee Candles safe to burn?

Yankee Candle does not offer 100% natural candles and having natural wax but a synthetic fragrance will still be toxic. To ensure you are purchasing a natural candle, be sure to check the ingredients list on the packaging.

7. What about WoodWick candles? Are they safe?

WoodWick candles are typically made with soy wax blends, but it’s essential to check the fragrance source. If they use synthetic fragrances, they can still be problematic. They contain no paraffin, which makes them completely non-toxic.

8. Are Bath & Body Works candles safe?

Bath & Body Works candles are generally not recommended due to their use of paraffin wax and synthetic fragrances.

9. How often can I safely burn candles?

If you’re using natural candles made with beeswax, coconut wax, or soy wax and scented with essential oils, burning them for a few hours a day is generally considered safe. Ensure proper ventilation.

10. What are the symptoms of hormone disruption?

Symptoms of hormone disruption can vary depending on the specific hormones affected and the individual’s sensitivity. Common symptoms include fatigue, weight changes, mood swings, sleep disturbances, and reproductive issues.

11. Can candles affect fertility?

Yes, exposure to endocrine disruptors found in certain candles can negatively impact fertility in both men and women.

12. Are essential oil diffusers a safer alternative to candles?

Essential oil diffusers can be a safer alternative, as they don’t involve burning any materials. However, it’s crucial to use high-quality, pure essential oils and avoid diffusing potentially harmful oils like lavender and tea tree oil in large amounts.

13. How can I detox from endocrine disruptors?

You can support your body’s natural detoxification processes by eating a healthy diet rich in fruits and vegetables, exercising regularly, and minimizing your exposure to endocrine disruptors in your environment.

14. What about Tyler Candles? Are they toxic?

While Tyler Candle Company states that their wicks are lead-free, it’s crucial to investigate the fragrance source. If they use synthetic fragrances, the candles may still pose a risk due to hormone-disrupting chemicals.

15. Are Goose Creek Candles non-toxic?

Goose Creek claims to produce candles with safe ingredients and IFRA-approved fragrances. However, it’s still important to check individual product labels to ensure they align with your preferences for natural ingredients.

By understanding the potential risks associated with certain candles and making informed choices, you can create a cozy and inviting atmosphere in your home without compromising your health. Choose wisely, burn responsibly, and breathe easy.