I'm looking to make my own caffeine nasal spray, but I can't find stuff online about what I should mix into the solution (inb4 caffeine). Should I use bacteriostatic water? Also would anyone be able to give me an estimate on what the absorption rate per ul sniffed might be? Just so it's not all take on my end, let's make this a snorting thread; post any stuff you've snorted in the past and what your experience was.