I was liftin for a year straight then I got some amp 02 and used it for bout a month and had awesome resluts with it and amazing pumps. I got new hours at work and stopped lifting for bout 4months. Im back into liftin again with my reg. hours. I have a half bottle of amp 02 from previous which doesnt expire till 08-2009 and have been using it for the past week and had no results at all. Ne ideas? Im bout out of the bottle now and dont know if i should buy another or try somthing else like noshogun or noxplde. Help me out. Thanks.