alot of guys store it room temp and it is fine, I know the old thinking with igf was it must stay cold, but remember the old thinking was also it was no good if it was reconstituted and we all know that to be false now, it is safer to be kept cold I suppose but it is ok at room temp from what I have heard from many bros who use it this way and also new studys always turning up will keep ya informed to new data on its keep and usage