February 1, 2015
Six Star Testosterone Booster
Six Star Pro Nutrition is making waves with its latest professional strength formula: Testosterone Booster.
A scientifically-advanced testosterone-boosting formula, Testosterone Booster is specifically designed for athletes, fitness enthusiasts, and body builders. It is a natural solution used to improve physical performance.
With increased testosterone, athletes will experience a significant boost in muscle growth, strength gains, and energy – but is Testosterone Booster strong enough to achieve this?
I’m a firm believer that a supplement is only as good as its ingredients.
Testosterone Booster’s formula is all-natural, safe, and legal. Furthermore, it openly lists all its concentrations – winning a few points in its favor.
Rhodiola. Classified as an adaptogen, Rhodiola is a remarkable herb that protects cells from damage, regulates heartbeat, and improves learning and memory. Some athletes use Rhodiola to boost energy levels, strength, and stamina as well.
Ginkgo Extract. One of the world’s oldest tree species, Gingko enhances memory and improves blood circulation.
Boron Citrate. This essential mineral builds strong bones and reduces osteoarthritis risk. Recent research suggests Boron increases testosterone levels and improves muscle growth as well.
Is There Research?
According to SixStarProNutrition.com, “test subjects increased free testosterone in only 7 days.”
While the manufacturers would have you believe that Testosterone Booster was responsible for these results, the fine print references two separate studies on the effects of Boron, Rhodiola, and Ginkgo Biloba.
The first study discusses the comparative effects of Boron supplementation. 
In the study, a small 11.6 mg Boron supplement was given to participants on an hourly, daily, and weekly basis.
After one week, the “mean plasma free testosterone increased and the mean plasma estradiol decreased significantly. . .based on recent clinical data, this must be the first human study report to show an increase level of free testosterone after boron consumption.”
Testosterone Booster contains 100 mg Boron per serving, which amounts to 5 mg of active boron. When taken twice daily, this gives you a safe 10 mg to boost free testosterone levels.
So far, so good.
The second study  explains the effects of Rhodiola and Ginkgo extracts. Seventy healthy male volunteers between the ages of 18 and 22 were either given a 270 mg herbal capsule or a placebo.
After 7 weeks, those who were given the herbal extract “displayed a significantly greater baseline-to endpoint increase in maximal oxygen uptake.”
In conclusion, the combined herbal supplement “could improve the endurance performance by increasing oxygen consumption and protecting against fatigue.”
Unfortunately the study fails to specify the exact Rhodiola and Gingko concentrations. Were the concentrations in equal amounts? Or did they contain different concentrations such as the ones found in Testosterone Booster?
Additionally, I couldn’t help but wonder if Rhodiokla and Gingko had an effect on testosterone.
While these studies are impressive, they do not analyze Testosterone Booster directly. The studies make me question if Testosterone Booster would provide the same results.
What About Negative Side Effects?
Don’t let the term “all-natural” fool you into thinking Testosterone Booster won’t cause side effects.
Ginkgo Bilboa, for example, causes stomach upset, headache, dizziness, constipation, and even allergic reactions.
Though Rhodiola is possibly safe when used short-term (up to four weeks), Rhodiola’s side effects are unknown.
Boron can be toxic in large dosages, resulting in convulsions, headaches, depression, diarrhea, vomiting, and other symptoms. The upper limit for adults is 20 mg per day, but luckily, Testosterone Booster includes 10 mg Boron.
For safety’s sake, do not take more than the recommended amount!
Is it Easy to Use?
For best results, take 2 caplets with a glass of water twice daily. Do not take more than 4 caplets in a 24 hour period.
Where to Find the Best Price
Interestingly enough, Six Star Pro Nutrition does not sell products on its official website. Rather, it provides links to second-party distributors.
The following sites offer the best deals:
• Amazon.com: $17.89
• Walmart.com: $9.97
• Walgreens.com: $13.99
• AllStarHealth.com: $11.99
Is It Backed with a Guarantee?
Six Star Pro Nutrition does not back its products with a guarantee. However, the low price doesn’t need one.
If you order from AllStarHealth.com, you can return any purchase within the first 30 days. Just be sure to read the fine print: “The unused portion must contain at least 25% of the original product. Unfortunately, we cannot refund the original and return shipping charges.”
Considering that Testosterone Booster sells for less than $12 a bottle, you may end up spending more on shipping than you did on the original product.
Although Testosterone Booster might not be the most powerful supplement, the low price and the positive consumer reviews make it worth further investigation.
Robert at Amazon.com wrote, “This is a fantastic product. I’ve tried other products like Tribulus and DAA. But this one gave me some noticeable differences. The big change was my libido. During my whole time taking this product I began having morning erections everyday like when I was a teenager.”
Of course, individual results will vary, but what do you have to lose?
 Naghii et al., 2011. Comparative effects of daily and weekly boron supplementation. J Trace Elem Med Bio. 25(1):54-58.
 Zhang et al., 2009. Dietary supplement with a combination of Rhodiola crenulata and Gingko biloba enhances the endurance performance in healthy volunteers. Chin J Integr Med. 15(3):177-183.