Fragrance oils for candles consist of many aromatic ingredients. Some are made naturally and others synthetically. Natural fragrances are extracted from plants or flowers and synthetic fragrances are manufactured from man-made materials.
There are over 2,000 high-quality fragrance combinations that can be used in candles. Also, there are strict global standards set in place for the safe use of fragrance ingredients, not only in candles but in other bath and body products as well.
For more detailed information, please see our Learning Section article: What's in a Fragrance Oil?