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Vitamax Sport SX-7 Black Onyx Reviews

By: MuscleTech


See all 61 products in:
Health & Wellbeing > Multi-Vitamins
Vitamax Sport SX-7 Black Onyx is a Multi-Vitamin manufactured by MuscleTech. It is designed to help provide the body with a wide array of micro nutrients that are vital for optimal health. It could be described as an 'insurance policy' to ensure that you're getting all of your vitamins and minerals but it is still crucial to eat a balanced diet.
(Out of 10, after 1 review)


  December 28, 2017

  • Cheap On BOGO
  • Outshined By All The Competitors
  • Not Effective
  • Underdosed Adaptogen Ingredients


I was looking for a good multi vitamin for some overall health benefits and some general support while balancing working out with a busy job and kids. I have tried some in the past. Noticed a BOGO deal on Muscletech Black Onyx and decided to give it a try. At forehand I was a little bit sceptical. Most products of the Muscletech brands did not live up to expectations, except Creactor which is actually one of my favourite products.

Ingredient Profile

The ingredients are too numerous to go through as with most multi vitamins. With Black Onyx the ingredients consist of five main categories; main vitamins, power and performance blend, SX-7 support matrix, adaptogen and enzyme plus.
Most regular and common vitamins are dosed at 100% of the recommended daily value, with the exception of magnesium and calcium. Most of the ingredients in the other categories mentioned do not differ that much from other popular multi vitamins. The adaptogen category is somewhat different with Rhodiola Rosea and Choline. The dose of Rhodiola is the absolute minimum amount at which some effects could be expected (50mg). The daily dose of Choline (50mg) is 1/5th of a dose that could provide benefits. Fairly underdosed. The power and performance blend consists of elevATP and Arjuna extract. ElevATP is a patented "unique, clinically studied combination of ancient fossilized peat minerals and a polyphenol-rich apple extract provides your cells with the edge they need to help you set a new personal best" Some studies do provide some positive results, but the research is fairly outdated (2013-2014) and doesn't look very trustworthy. If the benefits are that real, where is more recent research?


No taste, just 4 pills a day. No aftertaste


On effectiveness, black Onyx was really disappointing. The effectiveness of a product as a multi vitamin obviously is hard to measure. Expected is some effects with regard to fatigue, some increase in overall resistance and a slight increased overall wellbeing. It is hard to assess these subjective components. It is however fair to compare a multi with other multi vitamins. I have run some different multi's before (Optimen and orange triad) and to be perfectly honest they all seemed better then Black Onyx. While on black onyx I was feeling tired and actually got sick. Why doesn't my pee light up I the dark, maybe because of the poor quality of the ingredients?
Of course one should not expect a multi to prevent sickness, it's not a miracle potion. But when I finished the Black Onyx and went back to Optimen from Optimum Nutrition I felt a lot better overall. Price wise, black onyx on a BOGO deal is cheaper than the other mentioned multi's, but if they don't deliver it's a waste of money. As the ingredient profile does not differ that much from other multi vitamins my honest opinion is that the quality of the ingredients is inferior.


The value is allright. As wih most product from Muscletech they are almost on a permanent BOGO deal, which makes you wonder if the actual regular price is not way too high. On a BOGO deal you can get 240 tablets for 20 dollar. With a daily dose of 4 tablets that's 0,33 a day. Compared to popular multi vitamins that's cheap (Optimen at 0,48 a day and Orange Triad from controlled labd at 0,69 a day) When not on a BOGO deal the price of Black onyx is 0,66 a day.

Side Effects

None whatsoever. The tablets are not that big, no bad aftertaste. No bright yellow urine as expected, which was kind of strange.


Spend a little more and buy a multi that's actually effective. Sorry Muscletech, but better to spend some less on marketing (on a sidenote; bold and ridiculous statements, nobody really believes these products can turn you into the next x-men) and put in in the quality of the ingredients.


  • MarsheS
    Rep: +1,532
    December 28, 2017

    Nice review, however, 2013-2014 studies are NOT outdated, wtf!

  • deBruijn
    Rep: +567
    December 28, 2017

    Maybe not outdated in the world of scienific research, I guess what I mean to say is; if it's the next big thing, why isn't there more (conclusive) research done in 2015-2017

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