The Hidden Danger in the Wick - Lead Exposure?
Many people focus on the wax or fragrance in candles (which is important), but the wick itself can be just as harmful — especially in older or imported candles.
Some candles — especially those made before 2003 or imported from countries with looser regulations — contain metal-core wicks.
These were used to help the wick stand upright while burning.
But the metal used?
Often lead.
Why Lead Wicks Are a Big Problem
When burned, candles with lead-core wicks can release dangerous levels of lead vapor into the air, which -
- Accumulates in the body over time
- Can damage the brain, kidneys, and nervous system
- Is especially harmful to children, pregnant women, and pets
- Has no safe level of exposure, according to the CDC
Lead in general is a big problem.
If you live near a smelter, sometimes toxic levels of metals are released.
These may include sulfur dioxide (rotten egg smell), heavy metals (like lead, zinc, arsenic, cadmium, copper, and nickel), and particulate matter.
*** FYI - Zinc & Copper need to be in the proper ratio in the body or all kinds of conditions arise.
Studies found that burning just one lead-wicked candle for a few hours in a small room could result in lead levels far exceeding EPA safety standards.
Although the U.S. & Canada banned lead-core wicks in 2003, they can still show up in-
- Imported candles (especially cheap or unlabeled ones)
- Older candles you may still have in storage
- DIY or handmade candles from unregulated sources (like flea markets or online shops)
How to Spot a Safer Wick
- Look at the tip of the wick before lighting. If you see a thin metal wire, don’t burn it.
- Rub the wick on white paper — if it leaves a gray mark, it might contain lead.
- Buy from brands that state "lead-free cotton wick", hemp wick, or wood wick.
- Choose candles made in countries with strong safety standards (U.S., Canada, EU, Australia).
Even a “natural” candle made with beeswax or soy becomes toxic if the wick contains lead.
Often candles are lit in areas with little air flow - for obvious reasons.
Even more reason to pick the right candle.
When it comes to your health and indoor air quality, every component of the candle matters — the wax, the fragrance, and the wick.