Hyland's Naturals Cell Salts #6 Kali Phosphoricum 6X Tablets, Natural Relief of Stress, Simple Nervous Tension, Headaches, 100 Count Relief of symptoms of stress and nervous tension, occasional sleeplessness and headaches. NATURAL REMEDIES SINCE 1903. Hyland's Naturals is a leading consumer health brand with more than a century of history making high quality products to help people live healthier and happier lives. Made with natural active ingredients, our products contain no artificial flavors or sugars, dyes or parabens. With a state-of-the-art, FDA regulated and cGMP compliant facility, our top-selling products are sold in more than 15 countries and can be found in every major retailer in the United States. All of Hyland's Naturals products are safe, effective and completely free of aspirin, acetaminophen or ibuprofen and have no contraindications with other medications. Always read and follow the label directions when using Hyland's Naturals products SAFE AND RELIABLE.