Core Nutritionals Core Test Review

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Core Nutritionals Core Test

Core Nutritionals has produced the best standalone testosterone booster on the market. Core TEST takes the products that gave me the best bloodwork and results, D-Aspartic Acid and Erase, includes a full dose of them and adds a few ingredients to take that unbeatable combination to the next level. The result? 48% testosterone increase in 30 days!!!

Ingredients/Mechanism of Action:

From my D-Aspartic Acid and PES Erase review:

D-Aspartic Acid (DAA) is an amino acid that has been building some serious momentum in the supplement industry. It increases luteinizing hormone, which directly signals the testes to produce more testosterone. The numbers backing that science are there…it has independent lab studies on humans (not rats or some other lab animal) and user reports from those like myself showing significantly elevated testosterone levels.

When your testosterone levels are raised, which DAA WILL clearly do, estrogen levels also rise in the body as a result. High estrogen will seriously hamper many of the benefits of elevated testosterone such as improved body composition and athletic performance. DAA in particular is known for producing large estrogen increases…and that’s where Erase comes in. Erase is designed to stop your body from producing excess estrogen, while not impacting the testosterone increases from the D-Aspartic Acid.

Here is where Core Test gets clever, with the introduction of Coleus forskohlii (extracted for 20% Forskolin). What Forskolin does is increase cAMP, a messenger of the endocrine system. Why is this important? The chief limiting factors in testosterone production are luteinizing hormone (LH) and available cholesterol. Firstly, increasing cAMP levels stimulates a protein called StAR, which improves the transfer of cholesterol, thereby making the testosterone production process more efficient. Secondly, it up-regulates luteinizing hormone, effectively making the stimulation of luteinizing hormone by DAA all that much more potent. And as a welcome bonus, those increased cAMP levels increase lipolysis (fat burning), providing increased energy and the potential for fat loss, especially if being used in a caloric deficit diet.

Core Test also includes the all-around powerhouse vitamin D. Healthy vitamin D levels have been correlated with virtually every conceivable health marker you can think of. It is also one of the most commonly deficient nutrients, even amongst those who have it included in their multivitamins, which rarely include enough of it. As you can imagine, correcting this deficiency has numerous advantages, as evidenced by studies showing vitamin D supplementation to increase testosterone levels (as well as increase fat loss).

Now that we’ve disposed of the science:

Initial Observations:

Core Test could not be more convenient. Take 6 capsules per day, either all at once or in split doses, making a bottle last 30 days.You should take the capsules with food for best results, though it’s not important what time of day you take them. I generally take them with the first meal of the day, but you can spread the capsules out over your meals or take them with your final meal if you prefer.

You really appreciate the speed and simplicity of this all-in-one solution once you are no longer dealing with different pills and mixing powder (especially for those who find the taste of DAA to be an issue).

As when I took DAA and Erase, I started feeling it kick in very quickly, within the first week in fact. However, as I mentioned in my previous DAA review, some people find it takes a bit longer, even up to 3 weeks, for things to start kicking in.

General Observations/Mood/Libido:

By and large, my general observations using Core Test match up with DAA and Erase, as one would expect since they are the two primary ingredients.

From my D-Aspartic Acid and PES Erase review:

Mood was certainly the first indication that DAA had properly kicked in. It was that unmistakable alpha male feeling, full of aggression, vitality, energy, well-being and confidence, that let me know my testosterone was on the rise.  I was sleeping much better/deeper as well. Why can’t we all feel this way all the time damnit!

Actually, there’s probably a very good reason: libido. Mine was completely insatiable, maybe even to the limit of unhealthily so, although you won’t find me complaining, I thought it was a fun few weeks on the stuff. I could have put Russell Brand to shame. Some guys I know don’t get the crazy libido boost while still having the product work for them, so your mileage may vary.

Because of the decreased estrogen levels caused by Erase, I experienced far less water retention than normal. I immediately looked and felt so much drier and firmer, as though all the water weight I normally keep was sucked out (actually, pissed out is more accurate).

Workout Performance and Recovery:

The proving grounds…this is where I wanted Forskolin especially to strut it’s stuff. I know what to expect from DAA and Erase, and they already set the bar pretty high. For those who haven’t read my DAA/Erase review:

I’ve always found myself straining through high volume workout routines designed for muscular growth, even while on creatine and beta-alanine. I simply couldn’t do the amount of reps I was supposed to do without very long rests between sets and even then I was struggling. That changed with DAA: I managed to keep squeezing out those reps until I hit my mark. I think this is because my recovery was infinitely better than it usually is and as a result my muscles felt much fresher from workout to workout.

So what did I notice with Core Test? Just an overall enhancement in my performance. My rate of increase in strength went up, meaning I was able to work through my programs and get to higher reps and weights quicker than on just DAA and Erase alone. My recovery was just as good, if not better than DAA/Erase, since the higher my testosterone, the more protein synthesis (and therefore recovery) increases. Once I started seeing this, I was already expecting the bloodwork to crown a new #1, as it has done.

My pumps were very solid with great vascularity, right in line with my experiences with DAA and Erase. My energy levels were never in question, making it real easy to go in and get my workouts done without the need for a pre-workout product/stimulants.

Body Composition/Appearance:

As much as I enjoyed those great workouts, what you probably want to know is whether I saw results, and namely, how those results compared to DAA and Erase alone.

Just as with DAA and Erase, I put on roughly a pound a week. And I know little to none of that was water weight since I was as dry as can be from using PES Erase. Hardly enough to be mistaken for a steroid user, but a very very solid result nonetheless.

But here is the difference. My body fat calipers said that my body fat percentage went down. In other words, not only was I gaining muscle, I was also losing some fat. I certainly wasn’t expecting that since I was on a caloric surplus diet, albeit a “lean bulk.”

And best of all, those results showed in the mirror. Not only was I bigger, but I also just a little bit leaner too. The fat loss results were nowhere near as marked as when in a cutting phase, but any fat loss whatsoever in a bulk is more than welcome from me.


From my D-Aspartic Acid and PES Erase review:

While there aren’t any long-term studies on using D-Aspartic Acid or PES Erase, prescription testosterone and anti-estrogen medication have been used for many years. They are considered safe and in fact used to help treat health conditions in many people.

As for the products themselves, all of the short-term studies and anecdotal reports suggest they are perfectly safe and carry little to no side-effects. Most of the side-effects DAA users report, like low sex drive and bloating, are due to high estrogen levels, which can be prevented by taking an anti-estrogen like Erase. Most people, including myself, who use this combination have experienced no ill-effects. I have used them multiple times, had bloodwork taken and all is well with me.

It’s important to note that everyone’s baseline estrogen levels vary. If your estrogen level becomes too low, you may feel some mild joint pain while using PES Erase. If that occurs, simply dial back your Erase dose, i.e. if you were taking 3 caps/day, take 2 caps/day.

As for forskolin, the only potential side effect is that some people experience GI discomfort. It is worth noting that I have a pretty sensitive stomach and did not have any issues, but your mileage may vary. If you experience any problems, either spreading out or lowering your dose of Core Test should alleviate the problem.

There are no side effects to the supplementation of safe levels of vitamin D. The government rather conservatively lists the tolerable upper limit of vitamin D supplementation to 4000 IU, well above the 1500 IU of vitamin D in Core Test, so it is well within that safe range.

Core Test states you shouldn’t use it for longer than 8 weeks with a minimum 4 week break before continuing use. It’s important to respect this restriction and allow the body sufficient rest from the altered hormone levels.


Core Test is my new go-to product, with its 48% 30-day testosterone increase representing a 12% increase compared to DAA+Erase. The addition of forskolin provides great synergy with DAA, and it showed both in the gym and in the results in the mirror. Not only was I able to gain roughly a pound a week, I also lost a small bit of fat at the same time. While you may not experience this slight fat loss, which is likely high dependent on individual diet and workouts, you can be well assured to see great muscle gain with the lipolysis ensuring minimal if any fat gain with a reasonable diet.

Core Test comes in at $54.99 for a month’s supply, although with free shipping on any order containing Core Test (a $6 savings), the cost is effectively $49. Factor in that vitamin D supplementation is worth doing year-round, and the deal is even better. While it is your decision whether you want to spend the extra versus just DAA+Erase, which costs $36.88, I would recommend you do so.

Moreover, for those intending to use a test booster in a fat loss cycle, Core Test represents a considerable upgrade to DAA+Erase with forskolin’s fat loss properties in addition to vitamin D levels showing correlation to fat loss as well.

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