Pros of using lemon on the skin Natural exfoliation: Lemon contains citric acid, which is a natural exfoliant. It can help remove dead skin cells, unclog pores, and promote a smoother complexion.Brightening effect: Lemon juice has natural bleaching properties that can help lighten dark spots, acne scars, and hyperpigmentation, giving the skin a brighter appearance.Antioxidant properties: Lemons are rich in vitamin C, a powerful antioxidant that can help protect the skin from damage caused by free radicals.