Sweat Ethic Big Iron Review

Sweat Ethic Big Iron is a test booster designed to support you on your fitness journey. It supposedly boosts your anabolic hormones and improves your workouts to help you achieve your goal physique.

Claimed to promote:

  • Free and total T levels
  • Focus and mental energy
  • Strength

A 90-cap bottle of Big Iron will last you 30 days. And it costs $89.99. That’s quite a hefty sum, there’s no doubt about that! This Sweat Ethic Big Iron review looks at the ingredients to see if this product is worth the money.

-Check our Top Rated Testosterone Boosters-

Pros and Cons

Sweat Ethic Big Iron boasts a high-quality formula with some great ingredients.

The zinc dosage is too high though, and we were shocked when we saw the price – $89.99 for 30 daily servings.

While we like the ingredient profile, this product may not be the best value for money.


  • Ashwagandha is good for stress
  • Longjack supports your libido
  • Patented and high-quality ingredients


  • Zinc dosage too high, 35mg can give you intense stomach pains
  • Highly overpriced
  • DIM has questionable effects on estrogen production

Who Makes Big Iron?

Sweat Ethic is a company that produces a variety of supplements. From pre-workouts and fat burners to endurance support pills.

As far as we can tell, the company is a new face in the market. There’s also not much info about them on their website. However, we do know that they ship internationally and offer free shipping in the USA on orders over $50.


Sweat Ethic Big Iron belongs to a category of products called ‘testosterone boosters.’ These products are nothing like steroids – they’re completely legal and natural, and use a mixture of herbs and vitamins to support your lifestyle.

With that said, Sweat Ethic Big Iron claims to help you:

  • Boost strength
  • Enhance test production & energy levels
  • Improve focus and reaction time

As with most of these supplements, it’s best to take any wild claims you see with a grain of salt. So how do you find out if Sweat Ethic Big Iron really works? The answer lies in the ingredient profile, so let’s have a look.


There are a total of 7 ingredients in Sweat Ethic Big Iron.

Their dosages are fully disclosed, meaning you know what you’re buying.

As for the ingredients themselves, it’s all mostly positive, with a few exceptions.

Vitamin D

There’s a good reason why there’s so much hype around this vitamin. Or should we say, a hormone. That’s what “vitamin” D really is once it converts to its active form in your body.

Here’s the thing with vitamin D. It supports pretty much every area of your health and performance. This includes (1):

  • Strength
  • Testosterone
  • Bones and teeth
  • Regulates insulin (helps you with weight management)
  • Supports cardiovascular health
  • Turns certain genes on and off and influences overall health

So important is vitamin D that if you’re deficient in it, you may suffer from low test levels, poor strength and recovery in the gym, mood disorders, lack of focus, and plenty of other issues. (2, 3)

Studies have shown that 3,000-4,000IU of vitamin D daily is the perfect dose for keeping your test levels high. (3) Unfortunately, Sweat Ethic Big Iron only has 1000IU. This may be a good dosage for general health, not so much for supercharging your hormones and strength levels.

Zinc Citrate

Whether you’re an athlete or just a regular gym-goer, zinc will help maximize your workouts. It’s an essential mineral that keeps your test levels high, along with supporting your strength, energy levels, and the immune system.

In elite athletes, zinc is shown to keep the testosterone high. Despite heavy exercise which would typically bring their test levels down. Zinc citrate is a good form of zinc in Sweat Ethic Big Iron. But picolinate is absorbed even better in your body, so that’s what we would prefer to see here. (4)

The problem with zinc here is its high dosage. At 35mg, it might give you severe stomach pains, especially if taken on an empty stomach. Taking too much zinc long-term can lead to copper deficiency, which affects your immune system, hair color, and other things.

Shilajit (Primavie®)

Shilajit is a natural material that contains a mixture of minerals and compounds that are linked to some health benefits. For example, it has fulvic acid which is an antioxidant. It lowers inflammation and helps your cognitive function. It’s not our favorite ingredient in a test booster though – it’s not proven to work. (5)

Longjack Root Extract

Longjack is an ingredient that works for some people, while others see no effects at all.

Some research suggests that Longjack boosts your libido, and may even be anti-estrogenic. The second claim hasn’t been investigated enough though. It would be better to use a proven test booster in its place here. (6)

Ashwagandha Extract (Sensoril®)

Ashwagandha, unlike Longjack, is a well-studied herb and we know that it can boost your strength and muscle mass. (7) We were happy to see a patented form of Ashwagandha in Sweat Ethic Big Iron. Sensoril is a type of extract that contains 5% of withanolides, which are the active compounds of ashwagandha that help you with:

  • Stress
  • Muscle growth
  • (Potentially) Testosterone
  • Libido

Ashwagandha literally means “smell of the horse”. Don’t worry, this doesn’t mean it will make you smell like a horse; instead, it’s thought to give its users vitality and strength of the animal.


DIM is an ingredient that you’ll often see in supplements like this. It can help with certain things. Some studies show it may reduce the levels of estrogen, the female sex hormone. But other research shows the opposite effect, especially at doses higher than 100mg. (8)

Sweat Ethic Big Iron has exactly 100mg of DIM, which is sitting right on the edge. We’re not particularly sure about this ingredient, there are better options out there.

Black Pepper Extract

Black Pepper extract won’t raise your testosterone. It probably won’t even give you any direct benefits. So why is it a part of Sweat Ethic Big Iron?

The answer is, black pepper helps other ingredients absorb better in your body. Making them more potent. This is why although it doesn’t have any direct effects, black pepper is still a fantastic ingredient to include in a supplement like this. (9)

Anything Missing?

While the ingredients are solid, Sweat Ethic Big Iron still has room to improve.

As a strength & testosterone booster, it’s missing a few of our favorite ingredients:

  • Boron – boron is shown in studies to raise testosterone levels when supplemented in doses of 10mg or higher daily. (10)
  • Magnesium – raises both your free and total testosterone levels by inhibiting SHBG (sex hormone-binding globulin). (11)
  • Mucuna Pruriens – mucuna is a source of L-DOPA which turns into dopamine in your brain, boosting your motivation, focus, and drive in the process. (12)

How to Take (Dosage)

The suggested dose of Sweat Ethic Big Iron is 3 capsules daily.

With one bottle containing 90 capsules, the product will last you one month.

We don’t see if you should take it with or without food mentioned anywhere on the label. However, it’s better to take it with your meals as this may enhance the absorption of some fat-soluble ingredients.

Side Effects

The ingredients in Sweat Ethic Big Iron are either vitamins, minerals, or herbs, and the research behind them is legit. But the ingredient doses are another story.

Zinc is highly dosed, at 35mg it could cause these side effects (14):

  • Upset stomach
  • Nausea
  • Vomiting
  • Other gastrointestinal issues

Bear in mind, zinc dose in Big Iron is 350% of your recommended daily intake for this mineral. So if you also get zinc from food, then this could be pushing things way above the safe limit. Not smart!

Another warning is not to take Ashwagandha if you have an autoimmune condition. Since Ashwagandha strengthens your immune system, it could aggravate your autoimmune issues and cause problems. That’s why it’s always best to talk to your doctor before taking a product like Sweat Ethic Big Iron.


Big Iron costs $89.99 on the official Sweat Ethic website. This is probably the biggest downside of this product. This kind of price is simply too much for most people, not to mention that the benefits don’t justify the cost.

That said, if you wish to know more about Sweat Ethic Big Iron, you can check the official website.

Is Sweat Ethic Big Iron Good Value For Money?

Not for most people. Unless you don’t have a problem with spending $89.99 on a test booster with 30 servings, then you might want to look for other options. Even if you have the budget, there are more effective test boosters out there that don’t cost nearly as much! Centrapeak is one example.


So that brings us to the end of this Sweat Ethic Big Iron review.

What can we say? It’s a good product with some solid ingredients. With the exception of zinc which is too heavily dosed, the formula definitely has the potential to increase your strength and support healthy test production.

But is it worth the price? We think not!

If you’re going to charge $89.99 for 30 servings, you better offer something really, really good. Big Iron hasn’t convinced us in this regard. If you still think it’s a great choice for your needs though, you can buy it on the Sweat Ethic official website.

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-Check our Top Rated Testosterone Boosters-


  1. Vitamin D for Health: A Global Perspective. (source)
  2. Causal Link Between Vitamin D and Total Testosterone in Men: A Mendelian Randomization Analysis. (source)
  3. Effect of Vitamin D Supplementation on Testosterone Levels in Men. (source)
  4. Effect of vitamin D supplementation on testosterone levels in men. (source)
  5. The effect of exhaustion exercise on thyroid hormones and testosterone levels of elite athletes receiving oral zinc. (source)
  6. Shilajit. (source)
  7. Eurycoma Longifolia Jack. (source)
  8. Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial. (source)
  9. Ligand-independent activation of estrogen receptor function by 3, 3′-diindolylmethane in human breast cancer cells. (source)
  10. Bioavailability enhancers of herbal origin: An overview. (source)
  11. Comparative effects of daily and weekly boron supplementation on plasma steroid hormones and proinflammatory cytokines. (source)
  12. Effects of magnesium supplementation on testosterone levels of athletes and sedentary subjects at rest and after exhaustion. (source)
  13. Mucuna pruriens improves male fertility by its action on the hypothalamus-pituitary-gonadal axis. (source)
  14. Zinc: An Essential Micronutrient. (source)

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