Nitrosurge Shred is a pre-workout drink manufactured by Jacked Factory. The company promotes its products on a dedicated website but sells mainly on its Amazon online shopfront.
The supplement is designed to increase muscle pumps during a workout along with associated improvements in strength, power and endurance.
In addition to that, Jacked Factory says it should boost energy and focus, and even burn fat.
The core impact of Nitrosurge is delivered in the form of L-Citrulline, with Beta-Alanine coming a close second.
Read on to find out how this pre-workout drink stacks up against the competition.
L-Citrulline and Muscle Pumps
We are huge fans of L-Citrulline, it is the best ingredient for stimulating vasodilation – the phenomenon also known as the “muscle pump”, or described by some as getting “swole”.
Nitrosurge Shred from Jacked Factory contains 2 grams per scoop; their maximum recommended dose being 2 scoops, which would of course come to 4 grams of L-Citrulline.
That’s not bad, but it’s on the lower end of the effective dosage scale. The scientific research says the range is min. 4 grams to max. 8 grams.
Considering it’s the big weapon that Nitrosurge Shred is bringing to the table, we’d prefer to see a bit more.
Our favourite pre-workout is 4Gauge, which contains a bigger 6 grams of Citrulline Di-Malate alongside another natural muscle pump ingredient in red beet powder.
4Gauge makes us massively SWOLE! – The pumps are literally the biggest we have ever experienced. What’s even more impressive is tat 4Gauge contains even better nootropic ingredients (Rhodiola plus the Caffeine-Theanine stack) and other support ingredients.
Benefits of Nitrosurge Shred
Here are the advertised benefits of Jacked Factory’s pre-workout:
- Enhanced Muscle Pumps and Vascularity
- Powerful Energy Boost
- “Laser” Focus
- Fat Burning
- Muscle Building
It’s fairly standard for pre-workouts to offer these kinds of benefits now. Not all of them have the muscle pump element but it’s one of the more useful effects.
How Nitrosurge Shred Works
Vasodilation, the mechanism that causes the muscles to pump up when you lift weights, is at the heart of this formula.
In a nutshell, Citrulline increases arginine levels, which in turn increases nitric oxide (NO) levels. NO interacts with the smooth muscle walls of your blood vessels in and around the muscles that are under load.
They signal the smooth muscle to relax, which allows the blood vessels to widen and let more blood, oxygen and nutrients through. The working muscles are therefore fuelled better. This also means that the other ingredients in the supplement travel to their destinations more efficiently.
We explain Citrulline’s role in muscle pumps, and why arginine is no longer the best ingredient for it, in our article here.
The “SHRED” part of the formula comes by way of stimulants and other compounds which burn, or otherwise reduce, fat – e.g caffeine, l-carnitine, hordenine and theobromine).
Ingredients in Nitrosurge
The following ingredients are inclusion rates are in 1 scoop of the powder. Jacked Factory also recommend taking a single scoop the first time you use it to assess tolerance.
| Ingredient | Quantity |
|---|---|
| L-Citrulline | 2g |
| Beta-Alanine | 1.6g |
| Acetyl-L-Carnitine | 1g |
| Caffeine Anhydrous | 180mg |
| L-Theanine | 90mg |
| Theobromine | 50mg |
| Hordenine HCl | 25mg |
| BioPerine (from black pepper extract) | 2.5mg |
We have explained the role of these ingredients for the most part. However, theanine is in there with the caffeine and should reduce the stimulant “spike” as well as benefit cognitive function even more.
Beta Alanine increases serum carnosine, a beta-alanine metabolite which can increase muscle endurance during a set.
Side Effects and Health Considerations
As the manufacturer states, the first time you use the product you should only mix 1 scoop to assess your tolerance level.
Nitrosurge does contain 360mg of caffeine if you take the 2 scoops so if you are sensitive to caffeine then bear this in mind because that’s around 3 cups of coffee worth of caffeine you are chugging before an intense workout. There is theanine in the blend though so the rush will smoothed out a little.
Suffice it to say, pregnant and nursing women should not take Nitrosurge. Neither should elderly people or those younger than 18.
Anyone with a heart condition or existing medical condition should check with their doctor first, as should anyone taking medication that might conflict with the ingredients.
Definitely do not have any other caffeine throughout your day, and don’t take this preworkout within 5 or even 6 hours of bed time.
The Judgement – Is Nitrosurge Shred Recommended?
At the 2 scoop dosage level – which you should only try once you are comfortable with one scoop – Nitrosurge Shred competes with many good pre-workout blends.
It isn’t the best muscle pump supplement, but it is fat better than most because a lot of manufacturers are still relying on arginine inclusions.
The shred factor is not bad ether, although it’s a little too high in caffeine.
Everything considered, Nitrosurge Shred is a good pre-workout.
The BEST is still 4Gauge though.
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