Ok I'm new to kava and have been taking Natures Answer extract so far but looking to get some GHK micro moi variety. I noticed it is $52 for 1/2 pound and there is no indication how much this really is in terms of usage. I read on these forums people tend to take around 2 tablespoons per day. So at this rate how long will the half pound bag last? One week? One month? I really need some kind of estimate. Thanks.