how do I figure out how much nicotine to add to lower strength liquids

[thoughtfull1]

Hi all,

I am quite sure that my problem with not being able to get back to NO analogs has to do with the strength of the liquid I'm vaping. I have found some stuff that I like finally, but made the mistake of ordering it in 12mg. I have lots of stuff that's just not strong enough.
So....first...who can I buy straight nicotine from? and how do I know how much to add so I don't kill myself?

 

[Rosa]

what you want to do is get some of the same flavor in the highest strength you can (probably 36mg) and mix them that way. You don't want to get straight nicotine even if you can find it somewhere because it's not safe to handle without a spacesuit and air hood thing and all that.

so 12mg + 36mg at 50/50 mix=24mg
or 12mg + 24mg at 50/50 mix=18mg

 

[thoughtfull1]

Thanks Rosa....I really didn't want to invest in a space suit.