The Truth About Testofen (Based On Science)

Fenugreek seeds before they're made into testofen

Testofen is a supplement I get asked about quite frequently.

People wonder why Momentum Nutrition doesn’t release a test-booster and my answer is always the same…

Because most test-boosting ingredients don’t actually work!

Testofen is not the miraculous testosterone boosting supplement it’s often made out to be, but that doesn’t mean it’s completely useless.  It just means that a lot of people are using it for the wrong reasons.

As is the case with supplements like Tongkat Ali and D-Aspartic Acid, the test-boosting benefits of Testofen have been severely exaggerated, but it actually offers health benefits that have nothing to do with increasing Testosterone.

In fact, these are the more scientifically proven benefits.

In this article, we’ll cover everything you need to know about Testofen, including what it is, how it works, what it can do for you, and what it can’t do for you.

We’ll also cover things like dosage, side effects, and safety.

So if you want to know the straight up truth about Testofen, read on…

What Is Testofen?

fenugreek seeds

Testofen is brand name and registered trademark for an extract of Trigonella foenum-graecum (Fenugreek) produced by Gencor.

Fenugreek is an herb which grows all over the world but is believed to have originated in the Middle-East.

It has roots in both Ayurveda (an Indian system of traditional medicine) and Traditional Chinese Medicine and is believed to convey a variety of health benefits.

Fenugreek leaves can be consumed as a whole food (greens) or brewed into a tea, but Testofen is produced from the seeds which are rich in phytochemicals, known collectively as ‘Fenusides’.

Testofen is standardized to contain 50% Fenusides, and these components are believed to be responsible for the majority of the benefits.

That’s why Testofen is special.  There are plenty of off-brand Fenugreek supplements, but most of them aren’t standardized for the active components.

Testofen is definitely considered a high quality form of Fenugreek and if you’re using a Fenugreek supplement, it should probably be Testofen.

Why Do People Use Testofen Supplements?

Traditionally, Fenugreek has been used for a variety of things such as  libido-enhancement, digestive problems, menopause relief, and managing blood sugar.

While Testofen could potentially provide benefits in all these areas, it is most commonly used for the purposes of:

  • Increasing Testosterone
  • Enhancing Libido (Sex Drive)
  • Building Muscle

But to be crystal clear…

Not all of these benefits are proven.  In fact, most of them are not.

This is one supplement that has a a lot of hype behind it, but not much in the way of scientific research.

There have been several studies, but so far only a handful of the alleged benefits of Testofen have been scientifically verified.

What Are The Benefits Of Testofen?

man lifting weights

Some of the benefits of Testofen have been severely exaggerated by the media and the marketing for the products which feature it as a key ingredient.

At this point, there have been numerous studies on Fenugreek in general as well as a handful of studies specifically using Testofen, so it’s pretty clear what it can and can’t do.

Let’s start with the big one…

Testofen And Testosterone

Testofen is often claimed to ‘booster testosterone’ but these claims are actually a prettyt misleading.

In reality, studies have had mixed results.

One study showed that Testofen supplementation increased Testosterone levels in adult males, but another study using similar methodology failed to do so.

A study using an off-brand kind of Fenugreek extract (not Testofen) observed a similar failure.

Overall, there’s no reliable evidence to suggest that Testofen can flat out boost Testosterone.

It has done been shown to do so once, and has failed to do so twice.  At the very least, it’s unreliable, but when 2 out of  3 studies fail, that’s a failure.

Testofen may be able to encourage Testosterone levels to return to the normal, health range in instances where Testosterone levels are low, but that’s not the same as ‘boosting’ Testosterone.

In other words, Testofen may support health Testosterone levels, but it won’t increase Testosterone beyond the normal range.

For that reason, it’s not an effective muscle-builder, since you would have to raise Testosterone far beyond the normal range to accelerate muscle growth.

Testofen And Libido (Sex Drive)

While it doesn’t appear to be a very effective test-booster (more of test-optimizer), Testofen can definitely enhance libido.

At 600mg/day, Testofen has been shown to improve subjective measures of libido.

Similar results have also been obtained with another brand of Fenugreek, known as FenuSap.

At this time, it remains unclear how exactly Fenugreek accomplishes these things–especially since we’ve already established that it’s not by increasing Testosteroene–but the research is pretty clear…

Testofen is definitely an effective aphrodisiac and libido enhancer.

Testofen And Diabetes

For some reason, this is an area that often gets left out of the discussion on Fenugreek, despite it showing a good deal of efficacy for managing blood sugar and treating Diabetes.

Several studies have shown blood glucose lowering effects in mice and these effects appear to extend to humans.

Fenugreek has been shown to reduce blood sugar in subjects with Type II Diabetes.  Similar results have also been noted in Type 1 Diabetics where Fenugreek improves insulin sensitivity.

Research indicates it works by blocking the action of two enzymesalpha-amylase and maltase, which are responsible for carbohydrate (starch and maltose) absorption.

By reducing absorption of carbohydrates in the first place, Fenugreek can reduce blood sugar spikes from meals.

Although it’s not usually marketed as such, Testofen is definitely an effective supplement for keeping blood sugar in check that should at least be considered by anyone who has trouble managing blood sugar.

Testofen And Muscle/Strength

Testofen is often used as a key ingredient in herbal muscle-building supplements, but there hasn’t been a whole lot of research in this area.

One study found that 500mg of Fenugreek daily or 8 weeks resulted in subjects gaining muscle and losing fat, compared to placebo.

Unfortunately, this is the only study which has looked at how Fenugreek impacts muscle growth.

The only other study is confounded with the addition of Creatine.

This study found that 3.5g of Creatine + 900mg of Fenugreek was as effective for building muscle as 5g of Creatine + 70 grams of Dextrose.

When you take a minute to step back and understand these results, they’re not that amazing.

It would be one thing if Creatine + Fenugreek was MORE effective than Creatine + Dextrose, but they were about equal.

Sugar is known to potentiate Creatine absorption by spiking Insulin levels and shuttling Creatine into muscle tissue more effectively.  Given Fenugreek’s role in improving insulin signaling, it makes sense that it would do the same.

The results of this study don’t proven that Fenugreek is an effective muscle-builder at all.  All it shows is that Fenugreek may help facilitate the absorption of Creatine, which is an effective muscle-builder.

The claim that Testofen can increase muscle mass is based on one study that hasn’t been replicated, so it’s a little too early to label it an effective muscle-builder.

Testofen And Lactation (For Women)

Fenugreek actually has an extensive history of use as a galactagogue, an herb which enhances breast milk production.

It may seem a little odd that a supplement that is marketed as a test-booster can help women produce more breast milk, but there’s actually some research to back it up.

Fenugreek has been shown to enhance breast milk production in women.

Testofen hasn’t been studied directly for the purposes of enhancing breast milk production, but it is considered a high quality form of Fenugreek (which has been shown to enhance breast milk production), so it’s not much of a stretch to conclude that Testofen is effective in this regard.

It would be wise to talk it over with your doctor first, though.

What Kind Of Results Can You Expect With Testofen?

It’s important to set realistic expectations with Testofen.

The claims about boosting testosterone and increasing muscle mass are heavily exaggerated, so don’t expect either of those things unless you have abnormally low testosterone levels to begin with.

You can expect an increase in libido though, meaning a higher sex drive and better performance in the bedroom.

If your blood sugar is out of whack, Testofen may help take care of that as well.

The issue with most Testofen products out there is that they’re marketed in such a way which implies they can boost Testosterone to the point where muscle growth is actually accelerated, like steroids.

If you believe the commercials (like Nugenix, for example), Testofen can make you more of a man, but this gets taken out of context.

If you’re test levels are already within the normal, healthy range, Testofen won’t do much for you in the way of increasing Testosterone.

The older you are, the more likely it is to work, since our natural Testosterone levels tend to decline after age 30 or so.

I just feel bad for the people who buy into the hyped up marketing campaigns claiming that Testofen is some sort of scientific break through that will make you feel like you’re 30 again.

Any effect is going to be subtle.  It’s not some miracle cure for aging but it can help improve your sex drive.  For some people, that’s great!  For others, it’s kind of a disappointment.

Again, it’s a good idea to set realistic expectations.

Testofen Dosage

Studies involving Fenugreek have used dosages ranging from 500 to 1000mg.

For the purposes of enhancing libido, take 600mg/day.

For the purposes of improving blood sugar and insulin sensitivity, much higher doses of 1-3 grams/day seem to be ideal.

It’s not clear whether the same dosage of Testofen shown to improve sex drive and encourage healthy testosterone levels is enough to elicit a favorable impact on blood sugar, though.

It’s possible that only higher doses are effective in that regard.

Testofen Side Effects

Testofen is very safe.  Side effects are rare and pretty negligible when they do occur.

  • upset stomach
  • nasal congestion
  • diarrhea

The LD50–the amount it takes to kill half a population of mice–is somewhere between 3.5 and 4.5 grams/kg.

Some studies have noted, however, that Fenugreek causes allergic reactions in people who also happen to be allergic to Chickpeas.  It’s not clear why exactly this is, but if you’re allergic to Chickpeas, you should be careful.

For the average person, though, Testofen is unlikely to cause any side effects.

Testofen Lawsuits

gavel with money

In 2014, Gencor (maker of Testofen) and GNC (retailer of several products containing Testofen) were hit with a series of class action lawsuits in Massachussets and California which alleged that products containing Testofen had been marketed as ‘clinically proven to boost testosterone’ despite evidence to the contrary.

However, a federal judge dismissed the lawsuit and Gencor was allowed to continue marketing Testofen in more or less the same way.

When it comes to test-boosters, lawsuits are nothing new.  You can only claim such a miraculous benefit so many times before some customers get annoyed and start complaining.

All it takes is for one class action lawyer to come across an unahappy customer, and BAM!  Class action lawsuit!

This particular lawsuit does bring some questions to light, however, such as:

Is it really okay for something to be marketed as a test-booster when 2 out of 3 studies have failed to find any effect?


Who’s responsible for making sure products meet claims?  Brands?  Manufacturers?  Retailers?

Unfortunately, since these lawsuits don’t seem to have had a chance to play out, many of these questions have gone unanswered.  Still, it’s only a matter of time before the next round of lawsuits comes around.

But is it really Gencor’s fault if companies that sell Testofen misrepresent the findings of studies?

In my opinion, not really.  Gencor’s website is actually pretty straight-forward about what Testofen is capable of.  If the brands that use Testofen in their products make claims that aren’t true, I don’t see it as Gencor’s fault.

Feel differently?  Comment below…

Where To Buy Testofen

You can’t buy Testofen directly from Gencor, the company that makes it.  Instead, you’ll find it in a wide variety of different supplements, some single-ingredient and some multi-ingredient.

Unfortunately, just about every multi-ingredient test-booster/libido-enhancer I’ve come across doesn’t contain a true clinical dose (600mg) of Testofen.

That’s why I recommend just buying a single-ingredient Testofen supplement and dosing it yourself.

I recommend Swanson, which comes in 300mg capsules. So 2 capsules/day gives you a clinically effective dose of Testofen.

The Bottom Line On Testofen

Testofen is a branded version of Fenugreek which is standardized for 50% Fenusides (the active components).

The benefits of Fenugreek in general have been wildly exaggerated by the media and companies that sell it.

It’s not some revolutionary testosterone booster that will help you pack on pounds of lean muscle, but it is an effective libido enhancer and has anti-diabetic properties as well.

In other words, Testofen does have legitimate uses.  It’s just not as amazing as many supplement companies make it out to be.

Not all Fenugreek extracts are created equal, though, so it makes sense to go with a branded form like Testofen.

Just don’t buy into the hype…

You’re not going to experience some massive testosterone increase and it won’t help you build any muscle, but if you’re looking for an all natural supplement to dial your sex drive up, Testofen is worth considering.

Got Anything To Add About Testofen?  Comment Below…

I’m Matt Theis, founder of SuppWithThat, Momentum Nutrition, and Singular Sport. I created SWT to separate the science from the hype and publish accurate, research-based information on supplements. If you like what I have to say here, feel free to check out my supplements at and

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