Caffeine is naturally occurring in a wide variety of plants, including tea and coffee. There are also more esoteric plants which contain caffeine, including Yerba Mate, Guayusa, Yaupon, and Guarana. Chocolate (from the Cacao plant) also contains a trace of caffeine.
It is produced naturally in certain plants.
Caffeine can be derived from the coffee bean, from the tea leaf, from the guarana seed, and from the kola nut, as well as many other plant sources.
Caffeine may be obtained from malonic acid and dimethylurea.
coffee
Caffeine is found in its pure state only after being synthesized in a lab or extracted from certain plant or animal cells. Most commercially made caffeine is produced by decaffeination of coffee beans, although there are many other sources. Synthetic caffeine can be manufactured in a lab, but the process is commercially impractical.
Synthetic is man made.
synthetic fleece is made by peeps
Caffeine from any source, be it tea leaves, guarana seeds, coffee beans or from a synthetic manufacturer, will always be the same chemical, otherwise it could not be called caffeine. From any source, caffeine will be C8H4N10O2, and will have the same properties.
Synthetic hair is made from acrylic or plastic.
Synthetic oil is a chemically made substitute made from petroleum components as opposed to non synthetic which is made from crude oil.
it is synthetic (man made and sythetic are the same thing "synthetic" is just a fancy word for man made)
Wines do not have caffeine in them. They are made from grapes.
synthetic paper is paper that is made from man made materials and not from trees
The fibers which are made by man are the synthetic fibers.
synthetic hydraulic fluid made for phosphate-ester base
Some are but others are not made from plastic but from other synthetic polymers.