I just found Nude nicotine's Extended Shelf Life 2 Nic Base this morning online. It's in a vaccuum sealed glass bottle with one of the septum tops, that you poke the Luer Lock syringe through to draw out what you need. Then the septum closes itself back up, preventing any air in so it still stays vaccuum sealed. Comes in 125mL bottles, 250mL, and 500mL. Wouldn't cost a whole lot more to get the 100mg/mL that way either. Will cost me $.38 for the nic in each 50mL bottle of juice I make at 6mg nic. That's without S/H, which I haven't checked on yet. I think that's what I'm going to get for my last bunch of it to stash away in the deep freezer.