• Positive

    • Good selection of T supporting vitamins & minerals
    • A few quality T boosters
    • All natural
  • Negative

    • Different formulas in U.K & U.S
    • U.S version uses proprietary blends
    • U.K version has a lot of under dosed ingredients
    • Both have unproven choices
    • Weird serving schedule
  • Ingredients :
  • Price :
  • Trust :
  • Testimonials :
  • Company :
  • Overall Score: 6.0/10

If you’re new to testosterone boosters and are wary of exactly what your putting in your body, then it’s got to feel good to see a name like PhD Matrix among the many brands.

PhD means Doctor of Philosophy after all, and Matrix…well, that first movie was pretty good I guess. But is PhD Matrix worthy of its grand sounding title? Remember these supplements are about more than a name.

You wouldn’t let Dr Dre check your prostate after all, would you?

PhD Matrix Review

So does PhD Test Matrix’s formula have what it takes to bring you the T gains you want? Is this money well spent to see your physique and performance improve? Let’s take a look.

How close a look you get at the formula and what’s actually in PhD Test Matrix depends on where you buy it. The U.S & U.K formula’s are slightly different and the American version uses a proprietary blend, so only the British get to see dosages. We’ll touch on where the two cross over and what’s different in this review.

How Does It Work?

At a Glance

  • Free T Matrix to increase the amount of testosterone we have to use.
  • Anti-Aromatase Matrix to control the female hormone.
  • Mineral Matrix to support healthy T levels
  • Anti-DHT Matrix to promote creation of leydig cells.

We’ll break down exactly what you’re dealing with after we’ve dealt with the scores

The Scores

PhD Test Matrix

There are good points that both versions of Phd Matrix share. They both include zinc and magnesium to help overall T & free T and the both contain vitamin B6 to help control estrogen. Fenugreek is a shared good choice, though the U.S version may have gone a little overboard with 800mg.

They also have more than their fair share of unproven and unimpressive ingredients. The U.K version has a huge 1g wasted on pointless Trib.

We’d love to give the U.K PhD more credit for including solid T booster like D-Aspartic Acid and Vitamin D3 but the truth is there’s not enough to make a difference. Both formulas are disappointing in their own unique ways.


There’s a price gap almost as wide as the Atlantic between the U.S & U.K versions of PhD Matrix. In Britain it’s down around the £20 mark, which is reasonable, but still a lot to spend on a rolling basis. In the U.S you’re typically paying up around $50, which is getting towards the top end of the market and way too much.


PhD Matrix may not be dangerous and be manufactured properly, but that’s not the whole story when it comes to trust.

U.K buyers can feel a little better about knowing dosages and not having to deal with proprietary blends, but like the U.S formula there are a lot of unproven ingredients and some of the best choices are under dosed.


Testimonals – really good, individual, detailed testimonals – are not available which only leaves you with user feedback on retail sites.

Generally this is positive with many users noting more energy during workouts. It can be difficult in the case of people already performing at a high physical level to be sure how much of that is the booster though. A fair few customers also said they saw no results.


PhD Sports Nutrition are a U.K based supplement company who have been active for just over a decade. Their sizable range is divided into 5 categories: strength and mass, recovery, body sulpting and performance.

We found no major complaints about this company and were impressed to see that all the product formula supposedly adhere to IOC guidelines. We’re not convinced by Test Matrix but PhD Sports Nutrition look solid.

How Do I Take It?

Users should take 1 serving of 4 capsules a day at bedtime, at least half an hour after your last meal.

This is the weirdest serving schedule we’ve seen for a while. Normally we complain that taking just one serving means you get a boost and then effects start to run out later in the day. Typically testosterone levels are at their highest in the morning, the supplements are there to top it up later in the day when it will naturally have waned.

Far better to go for some of the best booster which split those 4 caps into 4 evenly spaced (DAYTIME) servings to sustain active ingredients for as long as you need them.

Any PhD Test Matrix Side Effects?

We wouldn’t expect to see any side effects from the British version because we know all the amounts in the formula.

But the U.S version contains unknown levels of saw palmetto which in rare cases can cause dizziness, headaches and stomach upsets. As can zinc which is a mystery portion of 130mg blend. If zinc is more than 40mg of that you may run into problems.

Where Can I Get It?

Customers can get PhD Test Matrix from the Amazon.com for $55.32 buying a month’s supply. From Amazon.co.uk it will cost £20.54

Ingredients – In Detail

Before we get into formula differences, here’s a run down of what makes the cut for both.

  • Zinc & Magnesium – Zinc promotes the hormones needed for strong T production and magnesium lowers SHBG to give us more free T.
  • Vitamin B6 – Lowers the creation and influence of estrogen in the body leaving the way clear for stronger T.
  • Fenugreek – Helps stimulate libido, androgens and control blood sugars to balance insulin and stop it interfering with T.
  • Ecdysterone – Natural nutrient supposed to mimic the effects of steroids. Pretty unsuccessful in clinical trials

U.S Test Matrix

Tribulus Terrestris

Tribulus Terrestris

As we mentioned before there’s 1000mg of this stuff in Stateside Test Matrix, which would be impressive except it’s absolute crap. Study after study shows it does nothing for your hormones and the best you can hope for is a slight boost in sex drive, if you’re lucky. Huge waste.


Saw Pametto

Included here to lower DHT, a powerful hormone linked to male pattern baldness and enlarging of the prostate. Studies showing it helps lower DHT are not strong but it does seem to promote overall prostate health, which is important.



Nettle Root

Here again to try and contol DHT, but the evidence is sketchy. What we do know is this can lower SHBG in the same way as magnesium so it’s useful anyway.



Here for the nutrient Chyrsin, which has been seen to raise T in rats when injected directly into the testicles. Less success when taken orally. (Christ I thought Chamomile was supposed to be relaxing)


U.K Test Matrix


D-Aspartic Acid

An amino acid which is considered one of the best natural T boosters. It simulates many of the same things as zinc and has been seen to raise male hormone by over 40% in 12 days. The problem for Everlasting T is dose. D-AA works best at over 3000mg, all we’ve got here is 500mg. Not enough.


L-Ornithine AKG & L-Arginine AKG

Ornithine is an amino acid used to reduce fatigue and allow you to exercise for longer. It has shown promise in doing this but only when supplemented in massive amounts. 4 times what’s on offer here. Arginine can increase nitric oxide in the body, improving blood flow and helping energy but it is not absorbed well when taken orally and again you need a large amount.


Tribulus Terrestris

Tribulus Terrestris

Once considered to have effects that rivalled D-AA, Trib hasn’t stood up to study nearly as well. Proven to do next to nothing for our hormone levels, it may boost libido slightly, but 300mg is still a waste.



DIM is a nutrient drawn from green leafy veg, which some T boosters use to help limit estrogen, Studies show it can do this in the right amount, but worryingly it can also stimulate the female hormone in some cases, so its always a bit of a risk



Vitamin D3

Vitamin D3, drawn mainly from sunlight can be rocket fuel for your T and because us can’t always rely on good weather, supplementing is a great idea. The problem is to get your male hormone moving, you need about 3000IUs, there’s only 12ooIUs here.




Great finish. Recent studies have shown it to be both a useful testosterone stimulator and again crucially, estrogen inhibitor. The results of one clinical study showed that 6mg of boron daily for 2 months saw free testosterone rise 29.5mg.



The U.K PhD Test Matrix probably just edges theAmerican version in terms of quality but neither of them are that great. T boosting ingredients are T boosting ingredients and should work the same wherever in the world you are, we’re always suspicious of transatlantic changes.

Save yourselves the bother and the money and get something better.