How To Instantly Whiten Teeth With No Damage! by How To Instantly Whiten Teeth With No Damage!To do this, all you need is two simple ingredients! -lemon juice -baking soda.First: put 5 big tablespoons of lemon juice into a small container. Secondly: add in 3 to 4 tablespoons of baking soda into the lemon and mix until it is a paste like substance. Thirdly: get your toothbrush and dip it into the paste making sure you have a good dollop of it on the brush. Fourthly: brush your teeth with the paste for 2/3 minutes(warning it does not taste good) Five: after you've swilled the substance out your mouth, then brush your teeth regularly as you would with toothpaste. You will then have noticeably whiter teeth!! DO NOT DO THIS MORE THAN 2 TIMES A WEEK.