Our wicks are made from cotton, although many of them contain other components to assist with stability or burning; usually linen, paper, nylon or metal threads. In addition, wicks are usually 'solutioned' with a chemical specially formulated to assist burning, reduce carbonisation and reduce smouldering when the wick is extinguished. There are several different solutions available and different wicks often use different types. I.e. our TB series and CL series wicks use a different chemical, which makes them more suited to some wax/oil mixtures than others. The CL has a more robust solution, allowing it to cope with more aggressive oils.
None of our wicks have lead added intentionally, as this has been banned for many years. In fact, you will struggle to find any wicks at all containing anything other than trace elements of lead in Europe, if not the world. Wicks containing metal stabilisation threads or metal powders can contain trace elements of lead, although the quantity is minuscule and significantly below EU thresholds. In short, you have nothing to worry about if you buy and of the wicks on our website.
Many beginners believe that an 'all cotton' wick is the best or most natural wick. This is not the case and you should choose the wick that creates the best burn for your candle. If that requires additives like paper, linen or zinc, then that is fine. So long as the candle burns cleanly, you have chosen the best wick. Pure cotton wicks tend to burn very hot, so are not always a good choice for many candles. There is a description for each of our wicks on the product page.