When alplied to the skin, citric acid can slough off dead cells and speed new cell turnover which can help alleviate the appearance of age spots, acne scars, small wrinkles, and areas if uneven texture.
It is also used as a preservative and flavouring agent in food and drinks. It is used as a cleaning agent. Also used in body creams. In combination with other items, it can be used to prevent kidney stones