Bergamot orange lime. The fruit of the bergamot orange is edible. An essence extracted from the aromatic skin of this sour fruit is used to flavour Earl Grey and Lady Grey teas, as well as confectionery (including Turkish delight ). It is often used to make marmalade, particularly in Italy. In Sweden and Norway, bergamot is a very common flavourant in snus, a smokeless tobacco product. Likewise, in dry nasal snuff, it is also a common aroma in traditional blends. Carpentierbe, a company based in San Giorgio Morgeto, makes a "digestif" liqueur derived from bergamot marketed under the name Liquore al Bergamotto.
Bergamot essential oil directly to the skin via a patch test, followed by exposure to ultraviolet light, a concentration-dependent phototoxic effect is observed. However, if the oil is twice rectified (and therefore bergapten-free), no phototoxic response is observed. The International Fragrance Association (IFRA) restricts the use of bergamot essential oil due to its phototoxic effects. Specifically, IFRA recommends that leave-on skin products be limited to 0.4% bergamot oil, which is more restrictive than any other citrus-based essential oil. Although generally recognized as safe for human consumption, bergamot essential oil contains a significant amount of bergamottin, one of two furanocoumarins believed to be responsible