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.
1 Apply this hot oil on your scalp but not the hair. 2  Massage it gently the coconut oil in your scalp with your finger tips. 3  Cover your head with a towel or shower cap and allow it to treat your scalp for 15 â 20 minutes.  After that rinse your hair thoroughly by using a deep moisturizing conditioner.