There`s 4 little things I`ve been doing for decades to get leaner.....Training,Cardio,Diet,Rest.......wash,rinse,repeat.
Coffee is great,I`ve tried other stuff as well of course, but all I use now is coffee.....I train hard and fast for about an hour or less depending on what I`m doing....get in,work my balls off, get out.
Guys like Soul Crusher and residue need more than coffee I`m sure, but for me, in an hour,I train hard then I`m out........how exhausted can anyone get in an hour of weight training......it`s not a 26 mile run.
I lost all faith in those products.
Not long back I was using beet root powder to increase Nitric Oxide......felt nothing,and the shit tasted vile.
Hanky drinks 5 gallon buckets of useless Gatorade and we all know that little bitch isn1`t expending much energy and losing any fucking electrolytes from his pansy ass workouts. 
As always,to each his own.
oh they've intentionally made them worse over the years in order to maximize profits, and use cheaper ingredients. At one point you just needed a scoop of jack3d, now you need a preworkout, a stim and pump complex and god knows what else. It's gone to shit