Homemade pepper spray?

i crushed up a lot of pepper flakes and let it stew in rubbing alcohol for like 4 days. Probably a 1:1 ratio in flakes to alcohol.

I strained it out and added some cooking oil, so its like 2:1 pepper solution to oil.

if i put this in an empty lighter and pressurize it with air duster, would it work as pepper spray? I cant buy since im under 18