Advanced Test-O-Boost Reviews
Advanced Test-O-Boost is a male testosterone enhancing supplement made by Niwali.
Niwali makes some hefty claims about Test-O-Boost. Purportedly, it boosts testosterone and DHEA hormone levels, optimizes muscle and lean body mass, decreases stress hormones, enhances sexual function, and increases women’s attraction to you.
If you are wondering if it really does all this, read on to find out more about the product.
Does It Have Scientifically Supported Ingredients?
Test-O-Boost contains several ingredients chosen to enhance testosterone.
Tongkat 50 mg: This herbal supplement is traditionally used as an aphrodisiac, stress inhibitor, and physical performance enhancer. While experts disagree about tongkat ali’s effectiveness, some sources indicate 200 mg significantly increases serum testosterone levels.  This is 4 times the amount in this product, but similar results could be obtained.
Tribulus Terrestris Extract 100 mg: Studies report tribulus terrestris (250 mg) enhances libido and reduces sexual dysfunctions like impotence.  This product features slightly less tribulus terrestris than the studied amount but may produce similar results.
Panax Ginseng 200 mg: Panax ginseng, or Korean red ginseng, has been suggested by multiple studies as an effective treatment for erectile dysfunction. One study used 3,000 mg daily, a significantly higher dose than found in Test-O-Boost. However, it is possible the product provides less pronounced effects. 
L-Arginine AKG 300 mg: One study reported 5 g daily l-arginine supplementation in men caused significant improvement in the treatment of erectile dysfunction.  This product has less l-arginine; though, results may be similar or less-defined.
What Are the Directions?
Take 1 pill in the morning and 1 pill in the evening.
Older men who want larger testosterone surges are encouraged to double the dose.
Are There Reviews?
Only one comment about its effectiveness could be found on a third party source. A BodyBuilding.com user says he took Test-O-Boost and experienced increased testosterone; however, he wanted to try other products to compare its effects before continuing Test-O-Boost use.
Other comments can be found directly on Niwali’s website, but keep in mind they may be biased or chosen for their positive feedback. Here are a few:
“I know you’re thinking how is this different from other products that are on the market?I was in the same boat thinking the same thing and wondering to myself should I really invest my money with this product. Going against my usual skepticism, I tried this Niwali Test-O-Boost and I’m so glad that I did! When my supply runs low, I can’t wait for my next order to arrive. The health benefits are for real and I love the attention I get with my new beard! I work at least 50 hours a week. am attending school, studying late hours into the wee hours of the morning and this stuff helps a great deal! I have more energy and focus than I’ve had for a long time and I’m in my early 40s. And in case you’re wondering, yes it’s true, this stuff will make you very sexually active!!! Simply put– I am having so much fun with this stuff and it feels good!” – Daniel, Store.Niwali.com
“On my first bottle and I feel a stronger sex drive, more stamina for workouts and improved attitude. I have tried other otc products and like this best. I do not want the T-injections so Im saying I recommend it.” – Unknown, Store.Niwali.com
Is it Expensive?
On Store.Niwali.com, it is priced at $67.00 for a one-time order, $49.95 for a monthly delivery plan, $139.00 for a 3-month supply, or $249.00 for a 6-month supply.
The monthly delivery plan and multi-month purchases include free shipping to the US and Canada.
Does Niwali Offer a Guarantee?
Though Test-O-Boost is on the slightly higher end of testosterone supplements, it comes with a 100% no questions asked, money-back, 30-day guarantee.
However, a different page clarifies only unopened items can be returned for a full refund. Essentially, you can’t try the product first and return it if you don’t like it. However, it does allow you to return it within 30 days if you change your mind about the purchase.
What Is the Verdict?
Test-O-Boost contains many effective ingredients supported by studies. Unfortunately, studied amounts seem consistently higher than those found in Test-O-Boost. This does not prove or disprove the efficacy of the product, but it does raise the possibility it won’t affect testosterone as much as customers hope.
The reviews seem positive, though I would feel more comfortable recommending this product if more reviews were posted on third party sites.
 Tambi, M. I. B. M., Imran, M. K., & Henkel, R. R. (2012). Standardised water‐soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late‐onset hypogonadism?. Andrologia, 44(s1), 226-230. Available from: http://onlinelibrary.wiley.com/doi/10.1111/j.1439-http://www.supplementcritic.com/advanced-test-o-boost-reviews/
 Nasution, AW. “Effect of tribulus terrestris treatment on impotence and libido disorders.” Andalas University, School of Medicine. (1993). http://www.andromedical.com/pdf/en/effect_tribulus.pdf
 Andrade, E, A Mesquita, et al. “Study of the efficacy of Korean Red Ginseng in the treatment of erectile dysfunction.” Asian Journal of Andrology. 9.2 (2007): 241-4. Available from: http://onlinelibrary.wiley.com/doi/10.1111/j.1745-7262.2007.00210.x/abstract
 Netter, A, R Hartoma, and K Nahoul. “Effects of zinc administration on plasma testosterone, dihydrotestosterone, and sperm count.” Archives of Andrology. 7.1 (1981): 69-73. Available from: http://informahealthcare.com/doi/abs/10.3109/01485018109009378
 “Zinc.” WebMD. Available from: http://www.webmd.com/vitamins-supplements/ingredientmono-982-ZINC.aspx?activeIngredientId=982&activeIngredientName=ZINC
 Chen, J, Y Wollman, et al. “Effect of oral administration of high-dose nitric oxide donor L-arginine in men with organic erectile dysfunction: results of a double-blind, randomized, placebo-controlled study.” BJU International. 83.3 (1999): 269-73. http://www.ncbi.nlm.nih.gov/pubmed/10233492