Citrus Fruits. Citrus fruits, particularly lemons, which contain vitamins A, B and C as well as calcium, phosphorus, potassium and fiber, are blood-cleansing foods.
Another great way to reduce oil production in the scalp is by breaking up the grease before it gets into your body. To do this, every morning drink 1 pint of warm water with the juice of 1 lemon squeezed in. Add to this 1 pinch of himalayan salt, and half a teaspoon of cayenne pepper.
5. Tea Tree Oil Spray and Mask. Tea tree oil hair mask not only eliminates scalp problems like dandruff, dryness, and head lice, but also refreshes your scalp in the summer and restores health to your hair. The first stage in this process rids excess skin and cleanses the scalp.