The orange is the fruit of various citrus species in the family Rutaceae which is primarily referred to as to Citrus Sinesis or sweet orange, to distinguish it from the related Citrus Aurantium , or bitter orange.

The orange is a hybrid between pomelo ( Citrus maxima ) and mandarin ( Citrus reticulata ). The chloroplast genome, and therefore the maternal line, is that of pomelo. Sweet orange has had its full genome sequenced.

The orange originated in a region comprising
Southern China , Northeast India , and
Myanmar, and the earliest mention of the sweet orange was in Chinese literature in 314 BC. As of 1987, orange trees were found to be the most cultivated fruit tree in the world. Orange trees are widely grown in tropical and subtropical climates for their sweet fruit. The fruit of the orange tree can be eaten fresh, or processed for its juice or fragrant
peel . As of 2012, sweet oranges accounted for approximately 70% of citrus production.

In 2017, 73 million tonnes of oranges were grown worldwide, with Brazil producing 24% of the world total, followed by China and India.
Oranges owe their vivid colour to a pigment known as betacarotene, also known as pro-vitamin A, which is known for helping to combat the visible signs of aging.

Oranges have a high content of citric acid which aids in skin exfoliation and helps to dry out acne, improving the overall look of your skin. Orange peel has a higher content of Vitamin C than the orange itself, so grind orange peel and use as a body scrub in your daily beauty regime for a healthy looking glow.