discount mic shots for new clients are 1.6 not a full shot , if you want to get the full shot , you can get two of the shots at once to make a full dose , if you get the 15 mic shots at a discount on Groupon , you only get 7 in a half full shots ,which will last 7 in a half weeks if you get the shots once a week. Or can upgrade to mic+B12 complex for an extra 75 bucks for 4 shots / month