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GROmuscle™ 3-Stick Sample Stack

$9.99 USD
$9.99 USD

Your first step to smarter performance. This 3-stick sample delivers GROmuscle’s signature NAD+ energy and nutrient-rich blood flow without the crash. No caffeine overload. No filler. Just a powerful intro to a better way to energize your training.

Science-forward performance support—formulated to power strength, focus, and recovery at the cellular level.

Why GROmuscle is different

Pre-Workout, Reimagined.

NAD+ for rapid blood flow and cellular energy

Instant “flush” sensation that signals it’s working

No crash, no cycling, no hidden blends

~100mg of caffeine—not 300mg+ like most formulas

Clinically Dosed, No Blends
Powerful NAD+ Energy
Feel It in Minutes
NSF tested. GMP certified. USA made.
8-in-1 Stack, One Simple Routine

Customer Reviews

Based on 12 reviews
67%
(8)
0%
(0)
8%
(1)
17%
(2)
8%
(1)
100.0
100.0
D
Doug Rapsis

First experience with this and my order was placed for a full bag after the second stick ! Love that's it's not full of caffeine yet still gets me where I need to be for my workouts. The FLUSH is no joke !
Very excited to make this a regular part of my supplement regiment.

G
Garret Routh
Untapped

I ordered two sample packs to make sure I was able to get a lower body, push/pull in and full body workout in! Let me tell you not only did I get better workouts, but I also feel better after my workouts were done. Definitely have a new longtime customer

W
William Carroccia
Probably the best

I have tried a ton of pre workouts but this seems to be a perfect combo of what I needed without crazy over stim issues or empty proprietary blends

L
Lenny Brunette
Customer service

I tried several times via several different methods (FB messages, FB comments, there request info link on their website) to get ahold of a someone there with no response. If this is the support I get buying a sample pack I will not be buying anything of more value.

J
John

Very good

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Why Cellular Energy Matters

Your body runs on ATP. We include NAD+ precursors to support mitochondrial health, helping you recover faster, perform longer, and feel more energized—without overstimulation.

The Circulation Advantage

L-Arginine and Citrulline work together to boost nitric oxide, enhancing blood flow. Better circulation means more oxygen and nutrients to your muscles—so you can push harder with less fatigue.

Bathing Your Muscles in Nutrients

The old method of spiking heart rate and constricting blood vessels has met its match. We deliver nutrients where they matter—deep into muscle and connective tissue for sustained performance.

Quick Answers

What to expect, how it works, and why it’s different.

Learn More

What is GROmuscle™ and how does it work?

GROmuscle™ is a performance formula powered by NAD+ and L-Arginine to improve blood flow, deliver nutrients to muscle tissue, and support ATP production. Unlike stimulant-heavy pre-workouts, it energizes through enhanced circulation—not by overloading your nervous system.

What’s the “flush” sensation I feel?

That warm, tingling feeling is the NAD+ (niacin) flush. It means your blood vessels are opening, circulation is increasing, and the formula is actively delivering nutrients where your body needs them most.

Do I need to cycle off GROmuscle™?

No. GROmuscle™ is designed for daily, repeatable use without cycling. The ingredients support natural energy systems and recovery without overreliance on stimulants.

What makes GROmuscle™ different from typical pre-workouts?

Most pre-workouts force the body into overdrive with high caffeine and vasoconstriction. GROmuscle™ works with your physiology—flooding muscle tissue with nutrient-rich blood through NAD+, L-Arginine, and ATP-supporting compounds for sustained output.

Can I take GROmuscle™ even if I’m not training?

Yes. Many use it for focus, clarity, and clean energy on long workdays or physically demanding tasks. It’s built for performance—wherever yours lives.