Your kitchen pantry and refrigerator may first serve as a resource for food, but the contents also double as nutrients for your hair. For example, a few tablespoons of warm olive oil applied to the shaft and ends of hair nourishes and protects your locks. "Marie Claire" says to combine one yolk, 1/2 cup honey, 2 tbsp. olive oil and two ripe avocados, apply to the hair and rinse after two hours.