if you just want a straight mint flavor that's amazingly easy for DIY juice. I found I was mostly buying peppermint from vendors and tried DIY juice. I dose not mater what mint you want its only one flavoring to add.now when I see i I'm low I just spend 10min with no shipping or waiting and mix up a 30ml batch for under $4. There are free ejuice calculators on line and even a app for that.