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Quantity
1
One time purchase
$54.99
Subscribe & save
$140.22
Delivers every 3 months
More than a preworkout. GROmuscle™ is an 8-in-1 formula powered by NAD+ and L-Citrulline to amplify strength, endurance, focus, and recovery. It replaces BCAAs, nootropics, and hydration stacks—fueling your workout with clean, sustained pow...
Reviews
4.7
364 ratings
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Have been using for the past 1.5 months and it’s been great!! I drink half bottle at the start of my workout and then finish through then another bottle of water. I train at all hours and even late night. GroMuscle has no crash and is a game changer I use in ever training session 5 days a week as I prepfor Masters Nationals Body Building
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Anthony · 4 days ago
Great stuff- BLOOD FLOW
Great stuff.
Been using their L-Arginine for many years, and I like it…their newer product, Pre-Workout Stack/GROMuscle, is KILLER!!!…wish I woulda came up on it sooner,,(who does their new-product advertising?,..hmmm)
Drinking GroMuscle before any “regular” workouts or before ANY/ALL strenuous physical work OR PLAY, is a HUGE benefit, period,…-BLOOD FLOW- says it all….and you feel it all too.
Unscientific observation from an uneducated shmoe here,,,regarding one single tiny part of many in their formula..maybe they found a way to time release the niacin?,…there’s no niacin-dump that usually only last for a very very very short amount of time.
Drinking GroMuscle, I feel a killer niacin-blood-flow for long time, 45-60 minutes!!!…Blood Flow Rules!!!
It’s just a beautiful feeling while pushing my body/muscles …my body/muscles (respiratory too) LOVE it.
With heavy blood flow going on, I can push my body harder and longer without over doing it or damaging my body.
Blood Flow On!!
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Anonymous · May 26, 2026
I’ve been at this for 45 years and never used a product like this. The rush during my workout is unreal. I’ve shared it with folks and their reaction is the same. The pump and focus are other worldly.