The only substance on this list, which is cheaper than gold.
Cost: $ 11 per gram. Saffron is a flowering plant that can be used as natural remedies virtually all ailments ranging from depression and ending with the menstrual cycle. The dried stigmas of Crocus sativus flowers (Crocus sativus L.) are used as a spice and food color orange. Perhaps there are properties allowing to slow vision loss in the elderly. At the moment, the data properties of the plant are just beginning to be explored.