Heading to the dro store now, will see if I can find anything comparable on their shelves else it's gonna be another 110$ liter - for me is 2month supply of the Boost. I have been laying it on thick at 8ml/gal at the very least so maybe I try to lighten up and see how long I could make it. I did see some folks using less and it seemed to work just as well. As I test I am dumping 12ml/gal of the Boost on one girl to see what happens regarding flavor. 600$/yr is quite a bit, to me at least. It does smell good in the bottle, kinda makes me wanna take a swill.