Strawberries can add extra shine to your hair. For this purpose, mash 7 to 8 ripe strawberries and add 1 tablespoon of mayonnaise. Mix it with the strawberry mash to make a smooth paste. Apply it over your hair and scalp and cover it with shower cap for at least 15 to 20 minutes. Rinse your hair and shampoo as usual. This will act as a natural conditioner to give you instant natural shiny hair.