This supplement was developed for those over the age of 18. It helps to reduce brain cell damage and relax nerve ends by modulating nervous signals. This auditory supplement is formulated on the basis of modern science and technological advances. You will receive your order at your door within 5-10 business day if you are located in the United States. The ears become more sensitive with age and are more susceptible to damage. Anyone have a suggestion for a great (and relatively inexpensive!) place for a rehearsal dinner in St. Medical experts warn that earphones and other sound-amplifying gadgets can cause hearing problems. It also helps to smooth the transmission of noise signals from the ear to the brain. Cortexi is a semi-supplement because it contains no stimulants or toxins. It also does not cause addiction. Its goal is to support healthy listening in its users. It contains natural ingredients that support hearing and ear care.