Citric acid is a weak organic acid found in citrus fruits. It is a natural preservative and is also used to add an acidic (sour) taste to foods and soft drinks. In biochemistry, it is important as an intermediate in the citric acid cycle and therefore occurs in the metabolism of almost all living things.

Citric acid is often used for proper mineral supplementation of food, as an acidity regulator, and as a flavoring ingredient. Though not an antioxidant itself, citric acid enhances the activity of many beneficial antioxidants. All these properties offer a wide range of health benefits.

According to Science Daily, citric acid is an antioxidant, which can help increase metabolism and burn more fat. Though there is no correlation between citric acid and weight loss, citrus fruits have been found to be helpful because of the natural antioxidants and fat-burning properties.

Citric acid is a wonderful product for treating several skin problems like mild acne, pigmentation, clogged pores, sun tanning, wrinkles, and dark spots. Lemons, oranges, and certain berries contain citric acid in large quantities. You can apply citric acid on the skin, in the form of peels, toners, scrubs or masks.