Science, Tech, Math › Science How Long Do Mood Rings Last? Things That Ruin a Mood Ring Share Flipboard Email Print Anne Helmenstine Science Chemistry Chemistry In Everyday Life Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated September 12, 2019 Mood rings change color in response to temperature, which is supposed to reflect your mood. Eventually, a mood ring will turn black and stop responding. Normal Lifespan It's reasonable to expect your mood ring to last a couple of years. Some mood rings last around five years. Few mood rings from the 1970s have survived with functioning stones to the present day. Water, Temperature Mood rings are notoriously susceptible to water damage. Most meet their end when water seeps into the stone of the ring and disrupts the liquid crystals, causing the "jewel" to become unresponsive or turn black. Mood rings also may be damaged by exposure to high temperatures. And trying to resize a mood ring may damage it. Leaving the mood ring in a hot location, such as the dashboard of a car, also may irreparably damage the stone. You can extend the life of your mood ring by removing it when your hands might get wet and by storing it at normal room temperature when you are not wearing it.