3. Lemon juice
Lemon juice is drying, so it may not seem like the best solution for treating the dry, itchy scalp that is associated with dandruff. However, lemon juice contains antiseptic qualities, which is what makes it an effective treatment for combating dandruff. Before you take a shower, squeeze the juice of a fresh lemon directly onto your scalp and work it in. Let the juice sit for a few minutes and then rinse it out with cool water. If you allow the juice to sit on your hair, it will lighten it, especially if you go out in the sun after application. If combating dandruff and lightening your hair are two things you want to achieve, then you can certainly keep the lemon juice on your hair and allow it to dry in.