natural remedy, but it is very effective for dandruff. Do you know that aspirin contains salicylate, a chemical which can be found in dandruff shampoo? That is why it can be used to treat dandruff. For this, you need two aspirins and shampoo. First, crush the aspirin tablets and mix it with shampoo until it becomes foamy. Then massage your hair using this mixture and rinse it. After a few days, your will see a noticeable result.