Dark Labs Herolean: 100mg 1,3 DMAA & 200mg DMHA with GBB For The Ultimate Fat Burner [Review + Discount code]

by Nader Qudimat
Updated July 3, 2023
Thermogenic Pre Workout
Serving Size
Widely available
Elevates and increases thermogenesis from multiple angles
Strong energy with synergic ingredients
Forces the body to use fat as energy
Fat burner and pre workout in one formula
Too strong at full serving for most people

Bottom Line

Update: Herolean is back in stock, but probably not for long.

You’ve probably never seen a fat burner with this potent of a formula before.

It contains typical thermogenic stimulants with DMAA and DMHA on top of the ingredients. 

It combines these hardcore stimulants with GBB, a sweat inducing non-stimulant and it is strong to say the least.

However if you’re not a fan of yohimbine, then Herolean may not be for you since it has a big 10mg yohimbine dose along with 2mg alpha-yohimbine.

Use discount code FITFREK

Ready to sweat?

Ready or not, Herolean is one of the most potent formulas for fat burning.

It will forcibly kick your behind with it’s potent thermogenic formula. 

It’s strong. 

The combination of ingredients here are never before used together, like GBB along with DMAA and DMHA. 

Dark Labs is known to deliver hardcore formulas, this is on the same level as their limited edition Crack. 

Although Crack Reloaded is another pre workout that packs a punch as well. 

You can also read up on Crack Primal pre-workout.

So if you’re in for such a fat burner /pre workout hybrid, then let's dig into it…

Herolean: Quick Overview

Herolean is a highly potent fat burner powder that combines DMAA and DMHA for a powerful thermogenic effect.

Despite its high dose of yohimbine, which can cause cold sweats, the thermogenic effects of Herolean are exceptionally strong, making it a top choice for serious fitness enthusiasts.

What To Expect

Herolean is a strong thermogenic formula that’s similar to the pre workouts that Dark Labs makes.

The combination of the thermogenic compounds and exotic stimulants is unique and it’s a rare one.

But the downside is the yohimbine dosage.

It’s a big dose of 10mg along with 3mg alpha yohimbine.

If you can handle the yohimbine, then this might be one for you to try.

The entire formula is going to be hard to use at full dose, and most people will enjoy it at half or less a scoop because of the potency.

Flame is a pre workout formula with 500mg eria jarensis, 300mg DMHA and more...


The entire formula here is made out of stimulants, nearly. 

The 300mg caffeine along with 200mg DMHA, 100mg DMAA and 25mg GBB is a never before seen combination of ingredients. 

DMAA along with GBB will make you sweat, and the yohimbine on top will just make you drench and your fat will cry away. 

It may be hard to workout on this because of the level of jitters and energy that this provides but taking this for a simple cardio session may just be perfect. 

However, taking this and not moving alone will be hard.

Herolean is strong and we don’t recommend it for beginners. 

Want to know what DMAA is? Read here.

Even advanced users will enjoy half a serving, which gets you 100mg DMHA, along with 50mg DMAA and more.


L-Carnitine L-Tartrate (2g)

This is a common ingredient to see in fat burners, at least some form of carnitine. 

L-Carnitine L-tartrate can enhance recovery by reducing the muscle damage done by resistance training while improving insulin sensitivity. [1]

It can also help fatty acid metabolism and increase focus.

It works like a transporter, moving free fatty acids to the mitochondria in the cell, converting it to energy. 

Which makes it important to have enough l-carnitine to increase fatty acid oxidation. 

While caffeine and other stimulants can help free up fatty acids, without sufficient carnitine, they will unlikely be used to create ATP (adenosine triphosphate). 

There’s a few different forms of carnitine, but this is faster acting and has better absorption. [2]

Dark Labs has gone with the clinical dose here of 2g, which is the same used in studies.

Olive Leaf Extract (300mg)

This extract is extracted from Olea europaea tree leaves and has several benefits including being anti-inflammatory and it’s a strong antioxidant. [34]

Olive leaf has research showing that it has a high concentration of polyphenols like oleuropein and hydroxytyrosol. [56

Because of the antioxidant propeerities, it can prevent oxidative stress caused on cells done by reactive oxygen species (ROS). [7]

ROS is produced because of thyroid hormones like thyroxine which is involved with metabolism. [8]

And reactive oxygen species can damage the DNA, RNA, and proteins of a cell because they are highly reactive molecules, which can lead to cellular death.

Antioxidants like olive leaf extract can reduce free radicals and improve cellular health.

Herolean contains a nice dose here of 300mg olive extract. 

Dark Labs releases limited editions of their Crack pre workout every once in a while…

Caffeine (300mg)

Without caffeine, there is simply no point.

Caffeine is always the go to stimulant for any pre workout.

It’s one of the most researched and proven stimulants to work for increasing performance and strength. [910]

In Herolean, it’s paired with DMAA, DMHA and eria jarensis to create a potent synergy of energy, fat burning and more.

Caffeine stimulates thermogenesis in  the body and it gives you more energy even if you’re in a calorie deficit. [11]

At 300mg, you’re getting more than enough to get the energy and fat burning you need.

Green Coffee Bean Extract (150mg)

Green coffee bean extract (GCE) is basically raw coffee beans that haven’t been roasted yet.

The benefits of this extract come from the chlorogenic acid.

Problem is, most fat burners that contain this extract don't have standardized chlorogenic acid which is where the benefits come from.

It’s a natural and safe compound for fat loss and because it’s in its raw form, the beneficial compounds are going to help with fat loss as it has potent lipolytic activity.

GCE has several benefits that range from being anti inflammatory, to anti diabetic, anti oxidant and even anti-carcinogenic. [12]

It can help with glucose metabolism and regulate lipids. [13]

Researchers have found that GCE helps synthesis cholesterol and downregulate fatty acids while increasing fatty acid oxidation. [14]

Even without caffeine, CGA can free up fatty acids within fat tissue and it will help keep glucose levels in check. [15]

Standardardized to 50% chlorogenic acid

Eria Jarensis (250mg)

Everyone loves the euphoria that comes from some pre workouts.

What brings that mood on is typically from some form of PEA.

However the problem with pure PEA is that it breaks down quickly by the MAO enzyme.

But Eria Jarensis, which is what is used in Herolean, has a longer half life as there's two alkyl groups attached to the PEA part of this molecule.

Eria Jarensis activates the euphoria and enhances mood for hours at a time.

Now this is combined with a big dose of DMHA of 200mg, along with 100mg DMAA.

So this 250mg dose is fairly big, and you can expect some nice waves of euphoria for hours at a time.

And thanks to the 50mg hordenine, this will help prolong those effects for even longer.

DMHA (200mg)

DMHA is well known now to be the alternative and safer version of DMAA.

It's known as 2-aminoisoheptane and it belongs to a group of molecules known as aliphatic amines. [16]

There isn't much research behind this fairly new stimulant but it's similar to DMAA, in that it can increase euphoria by releasing catecholamines and it decreases the speed of reuptake of those same neurotransmitters. 

While the dose here is big at 200mg, there's still 100mg DMAA along with eria jarensis and more. 

The euphoria, energy, and fat loss will be intense, and perhaps too intense for most people at full scoop.

DMAA (100mg)

DMAA or 1,3-Dimethylamylamine, is a hardcore stimulant that was intially introduced as a nasal decongestant.

Since it's been used in supplements in 2006, it's marketed as a weight loss and energy booster.

DMAA ignites the brain's reward system and boosts adrenaline by activating the fight or flight response.

The downside to DMAA is it's potential risk for elevating blood pressure and heart rate. 

But this usually only occurs when the dose is over 75mg. 

And here we are getting 100mg along with DMHA and eria jarensis. 

So it's needless to say, Herolean is not a joke and it's a strong fat burner with intense energy.


Dark Labs has a line up of pre workout formulas that are super strong…

Synephrine (50mg)

Synephrine is a popular stimulant to see in fat burners.

It basically makes the body free up the fatty acids and uses it as a source for energy. [17]

Found in bitter orange, syphrenine has similar effects to ephedrine, but without the harsh side effects. 

The difference is that it’s much safer.

It frees up fatty acids by functioning as a Beta-2 and Beta-3 adrenergic receptor agonist. Like hordenine, it uses fat for energy while sparing glycogen stores in muscles. 

Synephrine is also great for improving mood and energy as it’s been seen in research to have antidepressant effects. [18]

Hordenine (50mg)

When you have PEA ingredients, you need something to prolong the effects. 

Luckily Dark Labs has thought of this and has added 50mg here. 

It will work as an MAO inhibitor, prolonging the effects of the PEA compounds, as well as the mood boost that comes from both DMAA and DMHA. [1920]

It also functions like a beta-2 adrenergic receptor, meaning it'll make the body use fatty acids as energy. 

The 50mg dose here is standard.

GBB (25mg)

This is an ingredient that makes you sweat. 

We’ve never seen it paired with both DMHA and DMAA, so if you tend to be a sweaty person, this will amplify it!

GBB is gamma butyrobetaine and it’s an ingredient that has been shown to increase metabolism. [21]

The body uses this ingredient to create L-carnitine through the gamma-butyrobetaine dioxygenase enzyme (BBD). [22]

As we touched upon with L-carnitine L-tartrate, using carnitine will help shuttle fatty acids into mitochondria that will be used for ATP production.

Research has proven that using GBB will increase the body’s L-carnitine stores, which will increase thermogenesis. [23]

Yohimbine (10mg)

Yohimbine is traditionally used for weight loss and for it's stimulatory properties. 

It works by blocking alpha-2-adrenergic receptors, creating a fat burning environment. Studies show that yohimbine can reduce appetite, increase fat loss and improve male fertility (10-12). [242526]

However the stimulants here are loaded, with 300mg caffeine, 250mg eria jarensis, 200mg DMHA, 100mg DMAA and more, the yohimbine is dosed huge at 10mg with 3mg alpha yohimbine. 

Needless to say, if you're sensitive to yohimbine, you may not want to try Herolean. 

A similar pre workout can be found here if you're looking for something with little to no yohimbine.

Alpha Yohimbine (3mg)

Similar to yohimbine, alpha-yohimbine works by blocking alpha-2-adrenergic receptors, creating an optimal fat loss environment. 

But unlike pure yohimbine, alpha yohimbine is much more mild in side effects, as it doesn’t increase anxiety or jitters. 

However, it’s combined with pure yohimbine, so if you’re sensitive to yohimbine, you may want to go for another pre workout. 

If you like yohimbine, you’ll like Herolean.

I personally have used 15mg yohimbine with a pre workout and have not had any issues.

Black Pepper Extract (10mg)

To help enhance the absorption, black pepper extract is included. 

It enhances the bioavailability of the nutrients and basically every ingredient it’s taken with. [27]

Herolean is a big formula with lots of ingredients that will help with fat loss, so this will help you make the most out of every ingredient in here. [28]

The bioavailability enhancing properties come from the piperine as researchers theorize that this ingredient can increase permeability in the intestinal wall, which allows the other nutrients it’s taken with to enter the bloodstream easily. [29]

How To Take

Herolean is meant to be a pre workout but it’s also great as a pre cardio drink as it has some solid thermogenic ingredients. 

It may be too intense to be taken on a leg day, it’s definitely not going to be easy on the heart, this is going to be as potent as their limited edition Crack.

If you take half a scoop you can still get some strong energy and it will still be stronger than most pre workouts available. 

With half a scoop, you’re getting 100mg DMHA, 50mg DMAA, 150mg caffeine and more. 

A full serving will be hard to handle even for the most experienced stim junkie!

Flame has the best mood support with 500mg eria jarensis and more…


Currently there’s 2 flavors, green apple and tropical punch. 

Dark Labs is quite good with flavoring so expect these to taste really good. 

We don’t really care about flavoring, but Dark Labs is actually one of the better companies for tasty flavors. 

Who's it for

  • Herolean is for those who are seeking a potent thermogenic formula to aid in fat burning.
  • It's perfect for fitness enthusiasts who can handle strong stimulants and are looking for a pre-workout supplement that doubles as a fat burner.
  • If you're not afraid of breaking a sweat, Herolean is for you. Its high dose of GBB is known to induce sweating, which is a sign of increased metabolism.

Who's it not for

  • Herolean is not for those who are sensitive to yohimbine. It contains a significant dose of 10mg yohimbine along with 3mg alpha-yohimbine.
  • If you're new to pre-workout supplements or have a low tolerance for stimulants, Herolean might be too potent for you.
  • It's not recommended for those with heart conditions, as the potent combination of ingredients can be intense on the heart.


  • Herolean contains a potent thermogenic formula that aids in fat burning.
  • It combines the benefits of a pre-workout and a fat burner in one formula.
  • The supplement includes a variety of ingredients that work synergistically to increase energy and thermogenesis.


  • The high dose of yohimbine can cause side effects in some individuals.
  • It might be too potent for those with a low tolerance for stimulants.
  • The full serving might be too strong for most people.

Herolean vs Crack OG

While both Herolean and Crack OG are potent pre-workout supplements from Dark Labs, they differ in their ingredient profiles.

Herolean stands out with its thermogenic properties, making it a powerful fat burner. On the other hand, Crack OG is known for its intense energy-boosting effects along with the nitrate and nitric oxide profile for crazy pumps.

Choosing between the two would depend on whether you're prioritizing fat burning or energy enhancement.


  • What is Herolean? Herolean is a potent thermogenic pre-workout supplement produced by Dark Labs. It's designed to increase energy, enhance fat burning, and stimulate thermogenesis.
  • Who should use Herolean? Herolean is suitable for fitness enthusiasts who can handle strong stimulants and are looking for a pre-workout supplement that also functions as a fat burner. It's also for those who don't mind breaking a sweat during their workouts.
  • Who should avoid using Herolean? Herolean should be avoided by individuals sensitive to yohimbine, as it contains a significant dose. It's also not recommended for those new to pre-workout supplements or with a low tolerance for stimulants. Individuals with heart conditions should also avoid Herolean due to its potent formula.
  • What are the pros and cons of using Herolean? Pros of using Herolean include its potent thermogenic formula that aids in fat burning, its combination of pre-workout and fat burner benefits, and its variety of ingredients that increase energy and thermogenesis. Cons include its high dose of yohimbine which can cause side effects, its potency which might be too much for those with a low tolerance for stimulants, and the fact that a full serving might be too strong for most people.
  • How does Herolean compare to Crack OG? Both Herolean and Crack OG are potent pre-workout supplements from Dark Labs. Herolean stands out with its thermogenic properties, making it a powerful fat burner. On the other hand, Crack OG is known for its intense energy-boosting effects. The choice between the two would depend on whether you're prioritizing fat burning or energy enhancement.
  • What are the main ingredients in Herolean? Herolean contains a variety of ingredients including L-Carnitine L-Tartrate, Olive Leaf Extract, Caffeine, Green Coffee Bean Extract, Eria Jarensis, DMHA, DMAA, Synephrine, Hordenine, GBB, Yohimbine, and Alpha Yohimbine.
  • What are the potential side effects of Herolean? The potential side effects of Herolean are primarily due to its high dose of yohimbine, which can cause side effects like cold sweats, increased heart rate, and anxiety in some individuals. Its potent formula can also be intense on the heart.
  • How should I take Herolean? Herolean can be taken as a pre-workout or pre-cardio drink. However, due to its potency, starting with half a scoop is recommended to assess tolerance. A full serving might be too strong for most people.
  • Can I use Herolean as a pre-workout supplement? Yes, Herolean is designed to function as a pre-workout supplement. It boosts energy and enhances thermogenesis, making it ideal for use before workouts.
  • Where can I buy Herolean? Herolean can be purchased through the official Dark Labs website or other online supplement retailers. Always ensure to buy from a reputable source to guarantee product authenticity. You can use discount code FITFREK at any retailer that sells Dark Labs products. 


Fat burner powders are far and wide but Herolean is one of the best for its potency on energy and thermogenesis. 

It burns fat through both non-stimulant ingredients and stimulants. 

We’ve never seen GBB used with both DMHA and DMAA, so you will certainly be sweating even if you’re sitting still!

Dark Labs is known for creating strong formulas and this is easily going to be one of their legendary ones if it ever discontinues. 

Try out Herolean if you don't mind the Yohimbine dosage in it. 

We recommend checking out these Dark Labs pre-workouts:

Use discount code FITFREK. 

by Nader Qudimat

Forged by iron and cold steel, I'm Nader, a mid-30s natural bodybuilder. Once a 100lb skinny guy, I've transformed into a 200lb muscular athlete with over 15 years of lifting experience. Today, I leverage my transformation and extensive experience to guide countless individuals on their fitness journeys.

Click here to check out my 12 year transformation: Natural 12 Year Transformation

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