Yes, milk helps lighten your skin. Milk consists of several beneficial ingredients like vitamins A and D and also lactic acid. Many people have used it since ancient times to cleanse and improve overall skin health. You can directly apply it to your skin or can also do it yourself at home to improve its effectiveness.

• You can mix milk with 1 tablespoon of glycerine and apply it using a cotton ball for 20 minutes to achieve smooth, glowing skin. This works as an outstanding moisturiser.
• Take 1 tablespoon of milk and mix it with a pinch of turmeric for its anti-inflammatory and anti-bacterial properties. Use it on your face gently to remove dead cells and cleanse them properly.
• Mix multani mitti in 2 tablespoons of raw milk to make a face mask. Apply it to your face and leave it for 20 minutes after this massage gently. Thereafter, you need to rinse your skin using lukewarm water
•  Mix 1 tablespoon of sugar and 2 tablespoons of gram flour in 4 tablespoons of milk. A scrub is ready, use it on your face to remove dead cells.

So, the lactic acid from milk helps reduce melanin and provides you with lighter skin. It also removes the topmost layer of skin to give you much brighter and lighter skin. And if you have an uneven skin tone, use it regularly to even out your skin.