I did reconstitute the IGF 1 DES i recieved with 0.6% AA anyways the first time i did inject it i kind of got the sting in the muscle felt like a bee sting this went on for the first 3 days and yup there is definately a better pump in the body but today when i pinned in the triceps one side did not feel any kind of sting at all the other tricep did feel it right now i am doing about 80mcg's bi-lat pre workout .I wanted to know if the peptide has broken down or is not effective anymore it's been the 5th day after reconstitution and i generally inject and put it back into the fridge(temprature is genrally b/w 4-8 degrees celcius) and take it out 10 mins before i inject the next day leave it to reach room temp and then inject again Am i doing something wrong or is this the body just getting use to that stinging sensation that it does'nt matter anymore...If there is a better way to store it after reconstitution i would love to know thanks..