way to remove surface stains from teeth, while lemon juice contains citric acid that can affect discoloration. However, there is limited evidence that activated charcoal provides meaningful teeth-whitening benefits, and lemon juice is acidic enough to weaken or erode tooth enamel with repeated exposure.
For this reason, applying a mixture of activated charcoal and lemon juice directly to your teeth is not recommended as a routine whitening method.
How to Approach Teeth Whitening More Safely
Instead of brushing with lemon juice or abrasive charcoal mixtures, consider using a fluoride toothpaste
