Is nitric oxide in preworkout supplements worthless?

[Random Guy]

Preworkout supps generally are a stimulant, correct?

Caffeine causes blood vessels to constrict.
Nitric oxide causes blood vessels to dilate.

See the dilemma? Caffeine is a lot cheaper than NO and gives more of an instant gratification. So if you're taking a preworkout supplement with 5g arginine in their "NO matrix" and 300mg of caffeine, why are you paying for the 5g of arginine a scoop when its just going to be overpowered by the caffeine? Why not buy caffeine pills?

Or maybe I'm just not getting something?

[chassc]

Preworkout supps generally are a stimulant, correct?

Caffeine causes blood vessels to constrict.
Nitric oxide causes blood vessels to dilate.

See the dilemma? Caffeine is a lot cheaper than NO and gives more of an instant gratification. So if you're taking a preworkout supplement with 5g arginine in their "NO matrix" and 300mg of caffeine, why are you paying for the 5g of arginine a scoop when its just going to be overpowered by the caffeine? Why not buy caffeine pills?

Or maybe I'm just not getting something?

I take Animal Pump, but I remove the red stimulant pill. FWIW.

[2XL]

was bored so i googled caffeine and its effects on blood vessels. Sounds like caff constricts blood vessels in the brain, but cause INCREASED blood flow to the muscles. Here's some links:

http://home.howstuffworks.com/caffeine3.htm
http://www.mayoclinic.com/health/blood-pressure/AN00792

Aside from that, I think preworkout NO products do have their use, but they are just way overhyped (and overpriced) imo

Sometimes i take just straight caffeine pre-workout. I'm cycling off caff and NO boosters for at least a month though because i've been using them so long and my tolerance is so high that they really do nothing for me

[dumac]

its like taking caffeine and creatine at the same time. caffeine is a diuretic and creatine is a cell volumizer so really your cancelling out. thats why i don't use caffeine. that and it doesn't effect me

[R_N_S]

ya, and it's 100% black and white like that

[MWISE]

Aside from that, I think preworkout NO products do have their use, but they are just way overhyped (and overpriced) imo

Sometimes i take just straight caffeine pre-workout.

the only thing that the pre workout products do for me is give me a little energy but it is no different than drinking a couple cups of coffee before heading to the gym.