Beauty benefits of Baking Soda Exfoliation: Mix 1 tbsp. of baking soda with 1 tbsp. of water or apple cider vinegar. This is an excellent mild scrub for the skin, and also helps in tightening skin pores (when used with apple cider vinegar). Skin brightening/even complexion: Mix 1 tsp. of baking Soda with a 1 tbsp. of lemon juice and a few drops of olive oil. Apply this pack to your cleansed face for 10 minutes, then wash off with cold water.