Question: how long does it take for baking soda to lighten skin?
Answer: The combination of baking soda and oatmeal helps remove dead skin cells and activates cells to whiten it. Mix one tablespoon of baking soda, two tablespoons of oat flour, and one tablespoon of water. Apply on the skin and leave for 5 minutes. Scrub off gently and leave for 2 minutes.