Lemons are rich in vitamin C and citric acid, so they can help brighten and lighten your skin when used over time. Vitamin ‘C’ is a great antioxidant for neutralizing free radicals and boosting collagen production. Lemons are used for Acne treatment. Lemon juice has astringent qualities due to its acidic level. Ingredients with a high pH level like lemons can help decrease inflammation and oil that may contribute to the formation of acne. Furthermore, citric acid, a type of alpha hydroxy acid (AHA), can help break down blackheads. Lemon also has antifungal effects, which may help treat Candida rashes as well as scalp fungus that sometimes occurs with seborrheic dermatitis. Citrus ingredients like lemon may also work well on lightening age spots or acne scars, hair on your face and control dandruff. Lemon also helps in reducing fine lines and wrinkles.