[Kotomi]

 If I was to mend pepper spray homemade, I'd obviously have to test it.
 
What would be the most effective but safes pepper to do this with?

Carolina is probably enough on its own.. 

I believe it's the hottest in the world?

Theirs no fall backs like people being allergic or anything?

Everyone is allergic to peppers that's why it burns.

Fuck, I learn something new everyday.

I'd be defiantly safer selling them on the deep web yes?

Technically you can sell the pepper juice and it'd be legal?  It's the compressed spray bottle with juice in it that might get you in trouble.