Onions help in purifying your blood and supply your body with flavonoids that assist Vitamin C in its important functions. The consumption of onions can keep your skin healthy and glowing. You can prepare your own face mask by combining 1 ½ tablespoons of freshly extracted onion juice with 2 tablespoons of gram flour, ½ teaspoon of milk and a pinch of nutmeg. Mix all these ingredients to form a thick paste and add some more milk, if required, to reach the desired consistency. You can also add a few drops of lavender essential oil to beat the smell of onions. Apply it all over your face after cleansing and leave for 15 to 20 minutes or until it dries. Dab a cotton ball in milk and remove the pack by massaging in gentle circular movements. This will exfoliate the dead skin cells and lighten the skin tone.