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.
For dry scalp: Tea tree oil is amazing for your dry scalp as it moisturizes and nourishes your scalp and hair. It helps to clear the blockages in the pores and helps to prevent dryness and itching. To use tea tree oil for your dry scalp, take a few drops of tea tree oil and mix it well with jojoba oil. Massage the mixture gently onto your scalp for 10-15 minutes. Rinse out thoroughly and wash your hair as normal. Repeat this process regularly to relieve any symptoms associated with dry scalp.