Gen X Labs ENDURANCE Pre Workout Review

Gen X Labs ENDURANCE Pre Workout Review First Look:

I have not hit the gym for much this week.

I have been preoccupied with other matters, so when I went for a session last night in the pit of doom and despair beneath the floor boards of my living room area I wanted to get in to the right frame of mind and have the energy to smash shit up.

I took one look at the sachet box of pre workout I have and picked this one out from Gen X Labs because it had a bit of an 1980’s toy look about it, I cannot really describe it other than that.

Or rather, it looks a bit like a sleeve that a video game cartridge came in; Supa Contra anyone?

With this in mind, I tore the sachet open, sniffed the contents, which smelled vile by the way and mixed it with water.

It turned in to a weird blue/green color and I knocked it all back in one go, like a real hero.

Then, I turned to the trap door in my living room floor, made sure the tunes from an old Major Lazer mix were up to 11 and squeezed my way in through to my cellar.


Salt (sodium) – An essential mineral; its consumption is critical to our health. However, Americans plus a lot of Western countries do consume double the recommended daily intake.

Excess sodium may not raise blood pressure, but it is associated with other health issues, such as kidney damage and an increased risk of cognitive decline.

Potassium – Potassium levels change with sodium levels to keep muscles working properly throughout your body, especially your heart.

Calcium – Results show that training results in increased testosterone levels in athletes and that the increase is greater if accompanied by calcium supplementation.

However, calcium supplements are also known to increase artery plaque which in the long term can cause cardiovascular problems.

Read more about that, here.

L-Citrulline – This is used as a sports performance and cardiovascular health supplement. L-Citrulline supplementation results in reduced fatigue and improved endurance for both aerobic and anaerobic prolonged exercise.

An increase in growth hormone has been noted with exercise, but not at rest.

L-citrulline boosts nitric oxide production in the body. Nitric oxide helps your arteries relax and work better, which improves blood flow throughout your body.

Supplementing can help lower blood pressure in people with pre-hypertension.

This is often found in the best pre workouts.

To supplement L-citrulline to enhance sports performance, take 6,000 – 8,000 mg of citrulline malate about an hour before exercise.

Taurine – It has been touted that Taurine can help mental performance.

Early clinical research suggested that taurine, in combination with caffeine, glucuronolactone, and B vitamins, can improve attention and reasoning in adolescents, but does not improve memory.

However, there is insufficient evidence to prove this is always the case.

Thiamine (Vitamin B1) – Thiamine is required by our bodies to properly use carbohydrates.

Some research suggests that taking thiamine together with pantethine and pantothenic acid (vitamin B5) does not improve muscle strength or endurance in athletes.

Betaine (trimethylglycine) – This has been recommended as a compound that will increase athletic performance.

However, results from studies have been quite unreliable thus far of Betaine.

A dose of 12500mg has been linked to increased power output, very minimal increase of workout volume and slight endurance. Then again studies have showed no increase of any of the aforementioned parameters.

Leucine – Leucine is an activator of the protein known as mTOR, which then induces muscle protein synthesis.

Vitamin B6 – Using it in its most natural form, pyridoxine, B6 is an essential nutrient to raising the body’s metabolism and aiding the fat burning process.

Vitamin B12 (cyanocobalamin) – Gives you more energy and boost your metabolism, helping you shed unwanted pounds. Ensure you are not deficient in Vitamin B12 so you can do that quick 10 miler at 5am…

BCAA – BCAAs (typically a combination of  L-Leucine, L-IsoLeucine and L-Valine) play a critical role in muscle development because they are metabolized in the muscle rather than the liver.

Because BCAAs are metabolized in the muscle, they can be used for building new proteins or for energy.

However, Supplementation is not necessary if you eat eggs and meat regularly.

Alpha Lipoic Acid – Alpha-lipoic acid is an antioxidant made by the body. It is found in every cell, where it helps turn glucose into energy.

Antioxidants attack “free radicals,” waste products created when the body turns food into energy. Free radicals cause harmful chemical reactions that can damage cells, making it harder for the body to fight off infections.

Magnesium – Research into magnesium supplementation also increased testosterone production in men.

Niacinamide (Vit B3) –  Higher amounts of niacin can improve cholesterol levels and lower cardiovascular risks and maybe symptoms for Alzheimer’s . However, the jury is out on these real benefits.

Pantothenic Acid (Vitamin B5) – Pantothenic acid, as with other B vitamins are able to convert your food in to energy.

They’re also able to help you body use fats and proteins effectively, notwithstanding the creation of red blood cells which carry oxygen to your muscles.

Riboflavin (B2) – Important for body growth and red blood cell production. It also aids in the release of energy from proteins.

Phosphorus – Higher serum phosphorus levels are associated with cardiovascular disease. It is unknown if sex hormones associate with phosphorus levels in humans.

Chromium –  Research suggests that chromium might improve weight loss in some people who are overweight or obese.

Glutamine – It is generally touted as a Muscle Builder, but has not been proven to enhance muscle building in healthy individuals; only those suffering from physical trauma such as burns or muscular wounds (knife wounds) or in disease states in which muscle wasting occurs, such as AIDS.

Taking glutamine by mouth does not seem to improve athletic performance according to studies.

Coconut Water Powder – A 2007 study shows coconut water enhanced with sodium was as good as drinking a commercial sports drink for post-exercise rehydration with better fluid tolerance.

This is found in the best pre workout, 4 GAUGE.

Adenosine-5’-triphosphate (Peak ATP) – A dose of 400 mg for 15 days tended to reduce muscle fatigue and improved a participant’s ability to maintain a higher force output at the end of an exhaustive exercise bout.

Dextrose – This is Glucose and provides energy.

Agmatine – Agmatine is considered to be a neurotransmitter and neuromodulator.

The majority use agmatine injections, not oral ingestion and there is still no evidence that working memory is enhanced with agmatine supplementation.

Vanadium – Essential to some species, including humans, although we need very little. We take in just 0.01 milligrams each day, and this is more than sufficient for our needs. In some compounds vanadium can become toxic.


The sachet I had was blue raspberry flavor.

There’s a total of 16200mg which is a good amount.

It mixed okay with water but tasted absolutely vile. I found it difficult to drink.


Effects & Benefits:

Salt is required because we lose this vital mineral through perspiration, however, a typical Western diet is laden with lots of salt already.

Potassium helps keep the muscles working, I often have a pre workout before a rugby game which contains potassium so I do not cramp.

Calcium is good to help keep testosterone levels in check.

Citrulline requires 6000mg to be effective at reducing fatigue, increasing endurance and producing more nitric oxide.

Therefore, if dosed correctly, this is a great addition to have.

A host of B vitamins help the body produce energy, they can also increase your metabolism helping you burn more calories if you are looking to lose weight.

Leucine and BCAA’s can help build more muscle and increase energy.

Alpha Lipoic Acid not only is a free radical but can also support energy production.

Magnesium is a vital mineral and can help maintain healthy testosterone levels.

Chronium is found in good fat burners for its ability to help you shed fat.

Coconut is found in our favorite pre workout because it is as good, if not better to use re-hydrating that sports drinks.

If dosed correctly, ATP can help with increased or maintained force produced and reduce muscle fatigue.

Dextrose provides energy from glucose and a very tiny amount of Vanadium is required for humans to live, however, this can be found in meats, seafood, dairy, whole grains and even pepper.

READ: Read about our favorite pre workout that turned me in to a beast on the rugby pitch

How did it feel?

I felt worse for having this pile of shit.

I had no energy, I felt lethargic and I didn’t feel like I would be able to sustain the lifts that I was doing.

In the end I raised the bar a bit more in terms of weight lifted but I believe that was due to having a longer stretch between weight sessions, not to do with this.


Part of this pre workout supplement consists of a proprietary blend.

Taurine, Glutamine and Agmatine are not proven to help when taken orally.

Too much salt isn’t healthy, and, Western diets are laden with salt so you probably get enough in your diet.

Long term Calcium supplementation can cause a build up of artery plaque, this could potentially cause cardio vascular issues, which brings me on to phosphorus which could cause cardiovascular disease if levels are too high.

Citrulline, Betaine and ATP are all dose sensitive, and they are all hidden within a proprietary blend which doesn’t provide enough in the blend at all to be adequate.

I just didn’t feel anything from it at all. Nothing whatsoever.

Gen X Labs ENDURANCE Pre Workout Review Conclusion:

While this has some good, proven ingredients contained within, there’s also a lot of faults.

The ingredients that re particularly dose dependent are hidden within a proprietary blend which does not reveal how much of each ingredient is included.

Not to mention that fact each blend they fall in to isn’t big enough to offer any benefit anyway.

Then there’s a few ingredients that offer no benefit when taken orally – all of this can be avoided through some basic research.

Then there’s a couple of ingredients that may cause cardiovascular issues.

Then the taste was disgusting and I felt no benefit at all. There was no stimulation and no energy or extra focus that is required in a pre workout, that’s why we buy them!

We have listed the top 3 performing pre workout supplements which you can read about further, here.



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