1 handful baking soda
For problem dandruff, especially the kind that accompanies an oily scalp, try using straight baking soda (without shampoo) as another means for cleaner hair. To use, wet hair thoroughly and then work in a small handful for baking soda as you would shampoo, taking care to rub delicately near the scalp. Make sure to rinse thoroughly. While hair may feel dry after the first few washes, it will eventually take on a lovely luster.
Although baking soda should not cause any skin or scalp irritation, use with caution and rinse thoroughly. Seek medical treatment if any side effects develop.