Dead Sea on the Israeli side allows production of magnesium metal (by a subsidiary, Dead Sea Magnesium Ltd.). Due to the popularity of the sea's therapeutic and healing properties, several companies have also shown interest in the manufacturing and supplying of Dead Sea salts as raw materials for body and skin care products. Since 1930, when its surface was and its level was below sea level, the Dead Sea has been monitored continuously. In recent decades, the Dead Sea has been rapidly shrinking because of diversion of incoming water from the Jordan River to the north. The southern end is fed by
Dead Sea salt minerals and salts. Major ion concentrations in the water of the Dead Sea have given the following results (which do not necessarily reflect those of Dead Sea "salt"): The major minerals present in Dead Sea mud—the result of runoff streams flowing into the Dead Sea and bringing large deposits during the Holocene era—have been shown to be the following: Dead Sea salts have been claimed to treat the following conditions: "Rheumatologic Conditions" – in balneotherapy of rheumatoid arthritis, psoriatic arthritis, and osteoarthritis. The minerals are absorbed while soaking, stimulating blood circulation. "Common skin ailments" – for treating skin disorders such