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Testogen XR has been reported as discontinued.

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Testogen XR Reviews

By: Ronnie Coleman Signature Series

  May 16, 2015

  • Increased Libido
  • Builds Muscles
  • Increased Endurance
  • Increased Strength
  • Effective Test Booster
  • Massive Bathroom Issues
  • Granular
  • Minor Aggression
  • Proprietary Blend Should Be Clearer
  • Higher Side On Artificial Colors And Flavors (Roughly 19%)
If your answer to the title is a big, fat "YES" then I would recommend this product. I am currently in the midst of getting certified to be a personal trainer (PT) so I have a huge interest of all the products I take to the detailed level. Yes, my girlfriend sometimes call me a nerd, but hey that's what happens when you get passionate and interested to supplements related to workout. Anyway, below are my thoughts on Ronnie Coleman Signature Series (RCSS) Testogen XR.

Ingredient Profile: 9/10
The most important ingredient in natural testosterone booster is D-Aspartic Acid. In fact you can go to a supplement store and just buy pure D-Aspartic Acid (2,000mg minimum per serve) and mix it up with your pre workout shake and you will get testosterone boosting effect as well. This could work for budget conscious shoppers.

D-Aspartic Acid (D-AA)(3,120mg): Standard dosage for D-AA is 2,000 to 3,000 mg. D-AA can be used as a testosterone booster for infertile men, and by athletes as a temporary booster. Elevated testosterone levels only last a week to a week and a half in healthy men, with testosterone returning to normal afterward.

D-AA works in the central brain region to cause a release of hormones, such as luteinizing hormone (stimulates Leydig cell production of testosterone), follicle-stimulating hormone, and growth hormone. It may also build up in the testicles, where it alleviates a rate-limiting step of Testosterone synthesis, which leads to a minor testosterone increase.

Various clinical tests have shown that D-AA actually works and boosts testosterone level in healthy men.

Vitamin D (as Cholecalciferol)(500 I.U): Cholecalciferol to be exact is vitamin D3. 500 I.U. of Cholecalciferol is 125% of daily dosage. Your skin actually makes Cholecalciferol when you are exposed to ultraviolet rays from the sun.

Cholecalciferol is important for the absorption of calcium and phosphorous from the stomach and proper functioning of the minerals. In addition, there has been a research done in Germany where small but statistically significant increase in testosterone levels was detected in men who received vitamin D3.

I also think vitamin D3 was added for better absorption of Calcium D-Glucarate which is included in Testogen-XR.

Agmatine (1,000mg): 1,000mg is a good clinical dosage. Below are some handpicked information regarding Agmatine taken from another website.

Agmatine is a pain fighter. This can be beneficial to the athlete in two ways: It can potentiate the effects of analgesics used during recuperation from injury. It has the potential to aid post-workout recovery.

Agmatine enhances insulin production leading to better insulin response. This allows for positive effects in attaining body composition goals. Better insulin response means a harder and leaner more muscular body.

Agmatine acts on various hypothalamic and pituitary peptide hormones such as LH and GH. These will have subsequent effects on other hormones like IGF-1. Control of the hormonal environment of the athlete and you will perform better, look better and feel better.

Agmatine possesses anxiolytic (relieves anxiety) and antidepressant properties offering potential control of cortisol levels in the stressful life of the athlete.

Agmatine modulates nitric oxide (NO) through different ways. It stimulates some types of nitric oxide synthase (NOS) while inhibiting others. This is essential to the proper functioning of the polyamine biosynthetic pathways.

Agmatine acts on catecholamine (Epinephrine > Norepinephrine > Dopamine) release. These endogenous compounds are part of nearly every action in the body. Most notably for the athlete is the role that this compound would ultimately have in both energy production and aiding anticipation of the stress afforded by competition. However, there are also well-established roles that epinephrine can have on the body that includes:
Increasing endurance
Enhancing performance
Decreasing body fat

Agmatine has an antioxidant role. There can be no greater source of free-radical build up than that seen in the day-to-day activity of the athlete. The sheer stress that the body takes on when in you're an athlete in the trenches (i.e. - the gym, the field, etc...) could ultimately have significant detrimental effects with continued build up.

Agmatine can offer protection from the undesired effects that free radicals can have on the body.

For the athlete desiring body composition change, Agmatine has an independent role of insulin and testosterone management on lipid (fat) metabolism.

AstraGin (50mg): Helps in better absorption of amino acids and vitamins. 50mg is right on the dot for recommended dosage.

Performanace & Enhancement System (2,305mg)
L-Carnitine Tartrate: This substance plays a crucial role in helping your body burn, or oxidize, fat for fuel. It allows body to use fat as an energy source, carnitine transports long-chain fatty acids into specialized fuel manufacturing centers called mitochondria.

Taurine: Taurine is an amino acid that supports neurological development and helps regulate the level of water and minerals in the blood. Taurine is also thought to have antioxidant properties. In some studies, taurine combined with caffeine improves mental performance. Green Tea Extract contains caffeine but you will get more if you stack Testogen-XR with MyoBlitz XS.

Horny Goat Weed: Do I really need to explain this? LOL. Herb based testosterone booster.

Nettles (Root): Natural free testosterone booster. Studies have found that lignans in nettle bind to sex hormone binding globulin (SHBG), potentially leading to greater testosterone levels.

Green Tea Extract (Leaf): Most well known green tea extract facts are fat burning properties, antioxidants, and caffeine.

Calcium D-Glucarate: There are research done showing that Calcium D-Glucarate might reduce estrogen levels. Also has detoxifying properties to remove carcinogens and toxins.

All the proprietary blend contents are good but I really can't tell whether they are clinically dosaged.

Taste: 8/10

I have personally tasted Orange Creamsicle and Strawberry Lemonade. Both are quite good with roughly 8oz (~235ml) of water but this is just my personal taste. Please try with less or more water depending on your own taste buds. I also personally prefer Strawberry Lemonade over Orange Cremsicle.

Mixability: 7/10
Doesn't dissolve completely even with a shaker. You will have some granular powders sinking at the bottom.

Effectiveness (Stand alone): 7/10
It does what it is supposed to do: Boosts free testosterone level. However, if you want to use it as a stand alone pre workout then you will not get that elevated mental state which you might look for in a stim pre workout.

Effectiveness (Stacked with Myo Blitz XS): 9/10
This combo stack will bring this product to another level! Muscle to mind connection, good mental focus, enhanced strength and endurance and great pump! In fact, I have tried stacking Testogen-XR with MTS Clash and Pre Jym as well and they all worked out great. However, it might just be psychological but I felt Testogen-XR stacked best with Myo Blitz XS.

Value: 7/10
Slightly on the pricey side. 30 servings per container. As mentioned above, if you are on a budget, you could just get some D-Aspartic Acid powder which will give you more bang for your buck for similar results.

Overall: 8/10
Overall I am happy with this product and I will buy it again. Definitely will be in my main stack for quite some time. Some other positives that might be worth noting are increased sexual drive and enhanced feeling during copulation. However the negative down sides are occasional bathroom issues (aka diarrhea) and I was informed by my girlfriend that I do tend to be more short tempered while I am on Testogen-XR. I might try out the capsule version of Testogen-XR since they have more active ingredients and no artificial colors and flavors.

Remember to cycle this product every 4 weeks as cautioned in the warning label.

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