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What testosterone boosters actually work?

99% of Testosterone boosters are absolute trash, and for the ONE product I have found that does “work”, it requires an explanation of expectations.

“What do you think of testosterone boosters”

While I’m not going to say that EVERYTHING is garbage, 99% of them are garbage, for the following reasons

1-False expectations

The vast majority of products essentially market themselves as fake steroids. The reality is that NONE of these products could even remotely come close to replicating the effects of exogenous testosterone.

2-Worthless ingredients

Most of them don’t work, are under-dosed, and even if they were dosed properly, they still would not work. Tribulus Terrestris is still used in the vast majority of “test boosters”. It also does NOTHING in humans.

3-Libido boosting or testosterone boosting

There ARE actual supplements that can raise libido somewhat: zinc, curcumin, ashwagandha, longjack, and maca can all elevate your sex drive.

I’ve taken all of them and can attest to this. At the same time, these ingredients do not necessarily raise testosterone all that much, if they do at all. And if does go up, its a SLIGHT increase.

Expecting to go from testosterone levels of 300 to 1000 is NOT happening. Your free test levels might increase, but again, no promises. Libido boosters can get marketed as test boosters, and none of them raise test all that much (though they might have other health benefits)

4-How are you actually expecting to feel?

Many test boosters market themselves as if you are going to a weight smashing sex machine,  all while putting on 10lbs of muscle.  Again, this is deceiving marketing.

The reality is that if testosterone is low, and you are able to elevate to more normal levels, you are going to notice ENERGY and FOCUS increasing before anything else.

Some years back I went through a period where I was very underslept, and was not taking care og myself physically and eating a bad diet.

My testosterone dropped from the 800s down to 400. Now, I can attribute much of this to stress and lack of recovery, but I DID get it back up the 800s.

How did I do this?

I used Aggressive Strength Testosterone Booster during this process, and I believe it helped. I’ve used it on and off since. I notice I’m slightly more aggressive when taking it.

The aggressive strength does NOT raise your test levels to “superphyisological” levels. It elevates them back to NORMAL levels if your test levels have gotten low. “Normal” is total testosterone around 400-800, which is the level of a healthy adult male.

In my case, i went from low 400s back to low 800s. I restored what my prior levels had been.

I did NOT “gain pounds of muscle” on it. Nor any muscle for that matter. Nor did I feel immensely stronger or more powerful. My energy went up a bit, sex drive was more “on”, I felt mentally sharper, and that was it.

I took it again in December and January after having a very long year of being very sleep deprived. I felt very off, and mentally sluggish. Similar to last time, it made me feel better.

Aggressive Strength Testosterone Booster is a natural testosterone boosting supplement from Strength Training Instructor, Mike Mahler.

Mahler's Aggressive Strength - MikeMahler.com

Lets talk about the major factors that DO impact testosterone levels, that you NEED to address if you want healthy levels long term:

1. Sleep-A lack of sleep compromises testosterone levels. They can drop by as much 50%. Don’t argue about how to hack sleep, YOU CANT.
2. Diet-Specifically a high protein diet
3. Healthy fats-saturated and monounsaturated fats are crucial for testosterone production
4. Carbohydrates-carbs are absolutely needed for the production of testosterone! This does not mean eat high carbs, but it does not mean eat low carbs either
5. LIFTING WEIGHTS-this should be an obvious one. Lean body mass impacts hormone levels
6. Stress management-If your stress is killing you, your hormones are going down with it.

Do all of that, and then take Aggressive Strength Testosterone Booster if you so inclined.

Questions? Drop them in the comments.

Continue reading for detailed information on all of the ingredients in Aggressive Strength! 

Aggressive Strength Testosterone Booster Ingredients and How They Work

Bulbine Natalensis

The cornerstone ingredient of Aggressive Strength is the one and only Bulbine Natalensis. Unlike hyped supplements such as tribulus, that don’t do jack to increase testosterone, the South African herb Bulbine Natalensis works and has been shown in studies to increase testosterone by a whopping 347% and crush estrogen by 35%*. This is exactly what you want in an all-natural testosterone booster. Now keep in mind these were rat studies which I don’t give much weight to. However, fortunately enough human feedback on Bulbine has shown it works very well. Check out the customer testimonials for Aggressive Strength for some incredible support.

What you do not want is to increase testosterone and have the majority of it convert into estrogen via aromatase enzymes. Estrogen dominance is a big problem right now (the popularity of reality TV is overwhelming proof!) and any steps to increase testosterone should be balanced with controlling excess estrogen for maximum benefit. At the same time, you don’t want to drive estrogen too low, as it is a surefire way to crush libido, function, and mood. The key is balance and an optimal ratio of testosterone to estrogen, which is what Aggressive Strengthhelps provide*!

Now when it comes to Bulbine, it is critical that you use the right extract. The highest quality extract on the market is known as ProLensis™. If it is not ProLensis you are wasting your money and time. ProLensis™ is the same extract of bulbine that was used in the studies that proved its efficacy. In addition to the importance of utilizing ProLensis™ it is also critical to have the right dose. More is not better with Bulbine Natalensis and too much can lower testosterone! This is why I consulted with two top supplement designers to ensure that I have the right dosage of not only Bulbine, but also all the other ingredients in Aggressive Strength.

How ProLensis™Bulbine Natalensis works

ProLensis™ is a multi-faceted compound in all of the ways it exerts its positive effects on the hormonal balance of the body.

In regards to testosterone, ProLensis™ increases GnRH-LH signalling, and also increases cholesterol in the testes. These distinct processes are important for testosterone synthesis. GnRH, or Gonadotropin-Releasing Hormone, is released from the hypothalamus in the brain. In turn, this stimulates the release of LH, or Luteinizing Hormone, from the pituitary. LH is the hormone that directly stimulates cells (called Leydig Cells) in the testes to release testosterone. Evidence shows that ProLensis™ can stimulate LH 169% compared to study controls.*

By enhancing GnRH-LH signaling, ProLensis™ amplifies the process by which testosterone is stimulated, akin to turning up the volume on a stereo.

In cooperation with this, ProLensis™ also elevates levels of testicular cholesterol. Cholesterol is the equivalent of raw material in the testes job of creating testosterone. The cholesterol is taken up into the mitochondria of the testes where it is processed into pregnenolone. From this stage, it is converted into sex steroids and glucocorticoids. Due to cholesterol’s status as a raw material, it’s uptake into the testes is the rate-limiting step in sex steroid synthesis. This manifests into a marked increase in testosterone of 347%, as shown in research.

In other words, testosterone creation can only be enhanced if testicular cholesterol levels are elevated. In doing this, ProLensis™ increases testosterone output.

ProLensis™ is also a powerful aphrodisiac which contains phytochemicals that drive the machinery involved in sperm production and sex drive.

In addition to the effects on blood flow to sexual organs that the alkaloid phytochemicals exert, researchers have hypothesized that other constituents of ProLensis™ may act directly on the central nervous system, modulating the action of neurotransmitters. Unbeknown to some, neurotransmitters such as serotonin play a very large role in the complicated science of sex drive.

By influencing neurotransmitters, the bioactive agents present in ProLensis™ further augment the aphrodisiac effect of the extract.

Investigation into ProLensis™ has also demonstrated a marked decrease in estrogen levels. This decrease is as much as 35% in comparison to study controls. While the researchers do not speculate why this may be the case, they do speculate that this reduction in estrogen may be partly responsible for the increased testosterone.

In summary, ProLensis™ exerts several favorable effects on the hormonal milieu, documented in the table below.

Hormones % Change
Testosterone (serum) ↑ 347%
Luteinizing Hormone (serum) ↑ 169%
Estrogen ↓ 35%
Prolactin (serum) ↔ No change

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Stinging Nettle Root 

Aggressive Strength also has a highly concentrated extract of stinging nettle root. I learned about the benefits of Stinging Nettle Root several years ago from Dr. Jonathan Wright at an anti-aging conference.

Stinging Nettle Root supports free levels of testosterone and the much stronger DHT (dihydrotestosterone) as well*.

Stinging Nettle Root has also been shown to support prostate health by lowering overall inflammation and in particular inflammation of the prostate. The anti-inflammatory properties also support joint health and workout recovery. Stinging nettle root helps block the conversion of testosterone into estrogen, which also supports prostate health as excess levels of estrogen can cause prostate inflammation*. Similar to Bulbine, Stinging Nettle Root is an excellent stand-alone product for supporting testosterone. Yet, when combined with Bulbine you have an extremely powerful duo.

Mucuna Pruriens

The third ingredient in Aggressive Strength is Mucuna Pruriens. Mucuna Pruriens is an Ayurvedic herb that has been used for centuries to increase libido, energy, optimize blood sugar, mood support, and is well known for its powers as an adaptogen*. Mucuna has been shown to increase the neurotransmitter dopamine, which is very important for optimal brain health. Optimal hormone production starts with brain health and optimal levels of dopamine are critical for brain health*.

Dopamine is a powerhouse neurotransmitter that provides the boost you need to get out of bed in the morning and take charge of your day. It also plays a big role in sex drive and sexual function. Dopamine controls the sex hormone control center of the brain. Dopamine is also a powerful growth hormone booster and reduces levels of prolactin. Prolactin is a nasty hormone that lowers testosterone levels in men. According to anti-aging expert Dr. Eric Braverman, dopamine is intimately connected to addictive behavior. People with low dopamine levels are often addicted to sources of quick pleasure and easily succumb to addictions. Optimal dopamine levels support energy, mood, drive, and living a fuller life. Adding a high-quality supplement such as Mucuna helps support optimal dopamine levels and is a powerful addition to Aggressive Strength.

By increasing dopamine, mucuna supports growth hormone production and reduces prolactin. Mucuna also supports testosterone production by increasing levels of the messenger hormones: Luteinizing Hormone (LH) and Follicle-stimulating hormone (FSH). These messenger hormones signal the natural production of testosterone in men. Mucuna has also been shown to lower high cortisol levels, support healthy blood sugar levels, and increases energy. Mucuna is an all around great supplement that I have been using on and off for many years. It is a fantastic addition!

  • Mucuna is a natural source of L-dopa (levodopa) and in turn, increases dopamine levels in the brain for improves focus and motivation.*
  • Has adaptogenic properties and in turn, lowers stress and anxiety*
  • Increases libido big time*
  • Improves mood and well-being*
  • Improves deep sleep and increases growth hormone levels.*
  • Supports optimal blood sugar levels*
  • Enhances digestion and elimination*
  • Is a natural stimulant free energy booster*

Ashwagandha Sensoril®

The final ingredient in Aggressive Strength is Sensoril® which is a potent brand of the powerful Ayurvedic herb Ashwagandha. Sensoril® has a standardization level of a minimum of 10% glycowithanolide bioactives. No other form of Ashwagandha possesses such high levels of bioactives because these levels of potency are protected under United States patents.

One of the crucial components of improving testosterone levels is to address excess cortisol levels. Most men notice that sex drive plummets when under stress and this is largely due to the surge in the stress hormone cortisol which impedes optimal testosterone levels immensely. By mitigating cortisol you allow testosterone to thrive and in turn. you thrive!

Excess cortisol also contributes to belly fat and belly fat contains aromatase enzymes that convert testosterone into estrogen. By reducing cortisol, you will reduce stomach fat, and in turn, improve testosterone levels.

Sensoril® was evaluated in a 60 day, randomized, double-blind, placebo-controlled clinical trial involving 98 subjects. Subjects taking Sensoril® experienced significant improvements (compared to a placebo group) in their level of overall stress, anxiety, irritability, level of fatigue, concentration, memory, and sleeplessness. These subjects also showed improved biomarkers which support healthy cardiovascular function, healthy inflammation response, and blood sugar levels already within the normal range. Study subjects showed statistically significant decreases in cortisol and increases in DHEA.*

DHEA protects testosterone from the harmful effects of cortisol and optimal DHEA levels are a very important part of overall hormone optimization.*

To summarize, in addition to improving testosterone levels, Sensoril® helps promote emotional well-being, increased resistance to fatigue and tension while boosting energy levels, and enhanced mental clarity and concentration.* Sensoril® also helps promote healthy cardiovascular function, resistance to stress-induced overeating for healthy weight management, and more restful sleep.* In addition, Sensoril® helps support blood sugar levels which are already within the normal range.*

What happens, when you take a supplement with the right amounts of Bulbine Natalensis, Stinging Nettle Root, Mucuna Pruriens and Ashwagandha? You ramp up free and total testosterone, reduce estrogen and prolactin, mitigate cortisol and increase DHEA, and support dopamine and growth hormone.* Optimal levels of testosterone and dopamine play a pivotal role in well-being, mood, motivation, libido, muscle growth, bone health, and heart health. Keeping estrogen in check is vital to get the full benefits of testosterone and also reduce stubborn fat in the pecs, midsection, and lower body.

The recommended dose varies depending on your weight.

If you’re under 180 lbs, take 2 Aggressive Strength Testosterone Booster capsules per day. From 180-240, use 3 caps per day.  If you’re over 240 lbs, your dose is 4 capsules per day.  You should take Aggressive Strength Testosterone Booster for a 4 or 8 week cycle, then break for 2-4 weeks before starting again.

While on the Aggressive Strength Testosterone Booster, I noticed better focus and energy. More importantly I experienced less cravings for sugary foods and processed carbohydrates.
In the gym, I felt like I was able to train harder and recover faster. I have noticed huge improvements in my workouts and went from 3 days a week to 4 days working out. I have to say that the biggest change has been the profound impact on my mood and mental well-being.

This stuff is pretty amazing. I really wasn’t expecting it have such a big effect on me. Within just 4 or 5 days of taking it I felt like a super hero. I was in a super good mood all the time, and had a major increase in confidence. I had more energy for my workouts and felt like I was getting more out of them. I’ve gotten stronger.

I used this in conjunction with Mahler’s Estrogen Control– which reduces estrogen levels, helps eliminate stubborn fat and reduces inflammation.  I recently had my testosterone levels tested and I’m happy to report that it is now 833 after 1 cycle!!!(8 weeks).

I cannot recommend this product enough. You don’t have to take my word how fantastic this product is.  See the countless testimonials  from other men who have used Aggressive Strength T-Booster and are experiencing phenomenal results.  Here is an example of one:

If you’re a man, chances are you need Aggressive Strength from Mike Mahler! I have had the pleasure of using Aggressive Strength on myself and my physical training clients over the last 8 weeks and the results have been amazing! We have seen a remarkable increase in strength, stamina, aerobic capacity, mood, recovery time between sets and between exercise sessions is way down, and much much more. It’s like being 18 all over again! We use it because so many people are in fact clinically low in testosterone and high in estrogen and it gives our clients a distinct edge. Aggressive Strength immediately counteracts this and restores hormone balance. The results are felt in days and it just gets better and better. One of our clients who is 110lbs overweight has lost 15lbs in 18 days while his ability to train harder and faster has gone through the roof. Our online customers have written in after just one week reporting very noticeable results. In the next few weeks we will be integrating Aggressive Strength into our training programs full time along with many other hormone optimization elements that Mike has provided. This is an absolute game changer in so many ways! 

Nate Morrison
US Special Operations
CEO, Morrison Industries

Below is a video from Mike breaking down this amazing product:


You can purchase Aggressive Strength Testosterone Booster through the Mike Mahler website.

Need testosterone pills in UK?  No problem. Mike ships to US and internationally to Europe and Canada.

A one month supply (if you weigh 180-240) costs $49.95, and you can save money by buying several bottles at a time. Mike offers a money back guarantee and is really easy to get a hold of.  Early on I had some questions on dosage and emailed him and within 2 days he responded back and answered my query.  He is a upfront and transparent so you can definitely buy with confidence.  Don’t waste your money on store brand T boosters from GNC.  Get Mahlers Aggressive Strength today!

 Frequently asked questions

Are the ingredients in Aggressive Strength safe?

While it is important to consult with your physician before taking any nutrition supplement, I am confident in the safety of all the ingredients when used in the manner recommended (4 weeks on and 2 weeks off or 8 weeks on and 4 weeks off). Also, a recent human double blind study confirms the safety of Bulbine Natalensis for short-term use: ProLensis™ safety study completed! Click here to view the findings.

How much Aggressive Strength Should I use?

Below 180lbs: 2 caps per day

180-240lbs: 3 caps per day

240lbs+: 4 caps per day

How long will one bottle last?

If you take 2 caps per day, one bottle will last 45 days. If 3 caps per day, one bottle will last 30 days.

What is the optimal way to use Aggressive Strength?

If you are under 180lbs, I recommend you start off with 1 cap 2x per day such as morning and afternoon. If over 180lbs, start with 3 caps per day (two caps in the morning and 1 in the late afternoon). Finally, if over 220lbs, take 2 caps 2x per day. More is not better. Give the product a few weeks to kick in.

ASTB works best when taken on an empty stomach (an hour before or after meals). On training days one of the doses can be taken an hour before training to improve focus and performance.

The best way to use the ASTB is 8 weeks on and 4 weeks off to avoid becoming desensitized to the herbs in the formula.

Is Aggressive Strength beneficial for people that engage in intense physical training?

Absolutely, increasing testosterone, dopamine, and growth hormone is sure to benefit your workout regimen. In addition, lowering estrogen and cortisol will have a positive effect as well.*

Expect improved recovery time, more energy for training, and physique composition improvements. If you engage in intense physical training, make sure to use Aggressive Strength during arduous training phases. When cycling off Aggressive Strength dial back the intensity of training.*

Why should I be concerned with low levels of testosterone?

The question alone is a sign that you have low levels of testosterone and have probably been estrogen dominant for some time! In her excellent book Ageless, Suzanne Somers discusses the many negatives of depleted testosterone levels in men:

Shrinking muscles
Weight loss (muscle not fat)
Decreased Stamina
Weaker erections
Gallbladder problems
Enlarged breasts
The reality is every man should be concerned about keeping testosterone levels optimal as suffering from the above is no way to live! Testosterone plays a pivotal role in staying strong, muscular, and feeling your best. Men’s testosterone levels often peak around age 25 and then start dropping steadily after age 30; thus, every man should have his levels checked at age 25 as a marker of what his ideal levels are.

According to Dr. William Wong, by the time a man is in his fifties, he often has half the T levels that he had in his twenties and often has greater estrogen levels than his wife! Testosterone is also important for bone health, mental health, sexual health, and heart health. Without adequate levels of testosterone, you’ll feel like crap, look like crap, and have no sex drive.

One study I read online conveyed the importance of high testosterone levels concerning building muscle and strength: a study was done in which one group worked out and received testosterone replacement therapy; a second group worked out but didn’t receive testosterone replacement therapy, and finally, a third group received testosterone replacement therapy but didn’t work out. Guess which group had the best results? Obviously, the group that received testosterone replacement therapy and worked out achieved the best results. What’s interesting is the group that got testosterone replacement therapy and did not work out achieved better results than the group that worked out but didn’t get testosterone replacement therapy. The study clearly shows how important testosterone is for increasing strength and size.

You have written about the benefits of DHT, but I have read that Stinging Nettle Root blocks the conversion of testosterone into DHT. Wouldn’t that make it counterproductive?

Stinging nettle root has been shown to block some conversion of testosterone into DHT in the prostate but not elsewhere.* Nettle root also unbinds DHT from SHBG (sex hormone binding globulin) and makes it more readily available.* Anytime you increase testosterone you will increase DHT, as testosterone is a prohormone for DHT. All three ingredients in Aggressive Strength support testosterone and thus will in turn support DHT as well. My lab work after taking Bulbine and nettle root for several months showed high levels of free testosterone and DHT. *

How old should I be to use Aggressive Strength?

You need to be a male that is at least 18 years old. Honestly most healthy men 25 and below really don’t need a testosterone booster as you should be making plenty. Get your levels checked to determine if you need a natural boost in testosterone. Make sure to work with a doctor that can provide real feedback on the underlying causes for your low levels.

What else should I do to maximize the benefits of Aggressive Strength?

Make sure you have a good amount of healthy fat in your diet. Fat is crucial for brain health, skin health, and hormone health. Olive oil and coconut nut oil, in particular, are fantastic and have both been shown to help convert cholesterol into testosterone. Get at least 20% of your daily calories from healthy fats such as nuts, seeds, olive oil, and coconut oil. Magnesium and zinc are both important minerals for testosterone production so add my Recovery oil to your regimen as well.

How long should I use Aggressive Strength?

No less than 4 weeks and no longer than 8 weeks. For many, it will take at least 2-3 weeks to experience the full benefits so give it some time.

Why do I need to take 4 weeks off for every 8 weeks of use?

While the ingredients in Aggressive Strength have not been shown to shut down natural hormone production, one can become desensitized to herbs if taken for too long. By cycling 8 weeks on and then 4 weeks off you keep sensitivity to the ingredients for maximum benefit.

Is post cycle support needed for this product?

No, Aggressive Strength is not a hormone or steroid and does not shut down natural production of testosterone. The ingredients in it have been shown to increase natural production and utilization of testosterone.

How is the Aggressive Strength Testosterone Booster different than your EC-estrogen control supplement?

Aggressive Strength is a potent testosterone booster with moderate estrogen control while EC is a potent estrogen control supplement which in turn will have a moderate effect on increasing testosterone in men. In addition, women can take EC to address estrogen dominance while Aggressive Strength is only for men. EC-Powerful estrogen control for men and women

Can I take the Aggressive Strength Testosterone Booster with EC?

Yes you can and should if you have high estrogen levels. If you’re overweight you can rest assured that your estrogen levels are likely very high. High estrogen levels impede fat loss so reducing estrogen will help accelerate fat loss. Otherwise, you can use EC in between cycles of Aggressive Strength or use a lower dosage of EC with Aggressive Strength cycles such as 1-2 caps per day.

Get Mike Mahler’s Aggressive Strength Testosterone Booster today!

Thank you for reading,

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