I believe the main ingredient is citric acid.

Citric acid?

I don t think it has any chemicals in it

1) "Lemon juice is about 5% citric acid, which gives lemons a tart taste, and a pH of 2 to 3. This makes lemon juice an inexpensive, readily available acid for use in educational science experiments." "In 1747, James Lind's experiments on seamen suffering from scurvy involved adding Vitamin C to their diets through lemon juice." Source and further information: http://en.wikipedia.org/wiki/Lemon_juice 2) "This interstock grafting technique does not increase the flavonoid content of the lemon juice. Regarding the individual flavonoids, the 6,8-di-C-glucosyl diosmetin was the most affected flavonoid by the type of rootstock used. The interstock used is able to alter the individual quantitative flavonoid order of eriocitrin, diosmin, and hesperidin. In addition, the HPLC-ESI/MSn analyses provided the identification of two new flavonoids in the lemon juice: Quercetin 3-O-rutinoside-7-O-glucoside and chrysoeriol 6,8-di-C-glucoside (stellarin-2). The occurrence of apigenin 6,8-di-C-glucoside (vicenin-2), eriodictyol 7-O-rutinoside, 6,8-di-C-glucosyl diosmetin, hesperetin 7-O-rutinoside, homoeriodictyol 7-O-rutinoside and diosmetin 7-O-rutinoside was also confirmed in lemon juice by this technique." Source: http://cat.inist.fr/?aModele=afficheN&cpsidt=15410602 3) "Carbohydrates represent most of soluble solids in citrus fruits; they are present both as simple sugars and as polysaccharides. Citrus soluble solids are on the average made by a 70 % of sugars, whilst pulp solids are made by a 40 % of sugars and by a 50 % of polysaccharides. Citrus flavor is due to the blend of sugars, acids and specific flavor compounds, some of which are sugar-containing substances known as glycosides. Contribution to fruit colour may be made by sugar-containing anthocyanidins while texture is controlled by the structural carbohydrate polymers." Source and further information: http://www.citrech.it/English/Informations.htm This article contains detailed information about the chemical components of citrus fruits in general, not just lemon.

I am a chemist and I know that lemon juice is 94% water, 5% citric acaid, and 1% unidentifiable chemicals. If you believed this i also know that you are 100% stupid.

easy it's citric acid if u believe in dis u are 100% jerk and moron and no brain

H20 ?