(Hyland's Naturals, Restful Legs PM, 50 Quick-Dissolving Tablets. (0.000000000076%) Arsenic, calculated) creeping, crawling itch. Sulphur 6X HPUS itching, tingling, and urge to move legs. This being said, the exceptionally high turnover at iHerb ensures that our inventory is among the freshest in the industry.