Previous versions of katana:
30 serves @ 1 scoop, 1 scoop being max dosage
230mg caffeine
500mg cognizin
Etc.
Katana v4:
40 servings @ 1 scoop, 20 @ 2, with 2 scoops being max serving size
1 scoop = 115mg caff, 250mg cognizin, etc
Double that and you have the same amount of ingredients as...