I have been using the ncap for about a month & a half now .. I was introduced to it in Utah June 2020 at the usana summer concerts where I work. I have fibromyalgia, Restless legs, arthritis, pain in my shoulder ( 3 surgeries & a shoulder replacement) back pain, feet pain, hip pain ..... I cannot believe how great these patch’s ( I have several different sizes ) have given me 99.9% pain relief.. I feel like a 40-year-old in a 71-year-old body .. it is wonderful .. I gave one to my granddaughter who suffers from back pain (from being on the drill team at high school) & terrible menstrual cramps .. she says 😮 wow gramma...