Product Information



Test 3x™ SX-7® Black Onyx™ - Scientifically Advanced Testosterone-Boosting Formula

MuscleTech® researchers have taken their most powerful testosterone-enhancing formula ever and made it even better. Introducing Test 3x™ SX-7® Black Onyx™, a scientifically advanced testosterone-boosting formula featuring full doses of sodium-D-aspartate, tribulus, boron and Withania. This never-before-seen combination of powerful ingredients helps to support testosterone production and build muscle, plus it helps enhance the ability to decrease cortisol levels. Unlike other inferior products that are underdosed with key ingredients and have no studies to back their claims, Test 3x™ SX-7® Black Onyx™ is backed by multiple research studies displaying its ability to support testosterone levels and help combat crortisol.

How Does It Work?
Test 3x™ SX-7® Black Onyx™ has a multi-platform formula that delivers three distinct benefits. First, it supports testosterone production. Then it works to optimize the testosterone-to-cortisol ratio by decreasing cortisol levels. Lastly, it helps with muscle protein synthesis, which helps you build more muscle. It's a truly complete and powerful testosterone-boosting formula.

Boosts Testosterone & Builds Muscle
Test 3x™ SX-7® Black Onyx™ features a scientific dose of sodium-D-aspartate. Plus, it's also formulated with a powerful and concentrated dose of tribulus, safed musli root and boron. This scientifically engineered formula helps with connective tissue formation and supports testosterone production while staying within the normal healthy range, which is critical for building muscle.

Helps Decrease a Key Catabolic Hormone
What makes Test 3x™ SX-7® Black Onyx™ truly unbeatable is the use of the advanced ingredient Withania somnifera, which is shown to help reduce cortisol levels. Cortisol is a catabolic hormone that can diminish muscle gains and lead to muscle breakdown. Experience its shocking power and potency for yourself.


Product Set

  • Brand: MuscleTech™


Nutrition Facts
Serving Size  4 Caplets
Servings Per Container  40

Amount Per Serving     % DV

Vitamin B6 (as Pyridoxine Hydrochloride) 2 mg   100%
Folic Acid 200 mcg   50%
Vitamin B12 (as Cyanocobalamin) 1 mcg   17%
Zinc (as Zinc Gluconate) 30 mg   200%

Test Extreme Matrix  0   **
Sodium-D-Aspartate  3.12 g   **
Tribulus fruit extract (as Tribulus terrestris) Standardized for 45% saponins  250 mg   **
Ashwagandha root and leaf extract (as Withania somnifera) (Sensoril®)  125 mg   **
Safed musli root extract (as Chlorophytum borivilianum)  100 mg   **
Yacon root (as Smallanthus sonchifolius)  100 mg   **
Olive extract (as Olea europaea) (leaf) Supplying oleuropein  50 mg   **
Boron Citrate  14 mg   **

** Daily Value (DV) not established.

Other Ingredients
Microcrystalline Cellulose, Hydroxypropyl Cellulose, Coating (Polyvinyl Alcohol, Titanium Dioxide, Polyethylene Glycol, Talc), Croscarmellose Sodium, Stearic Acid , Silicon Dioxide, Magnesium Stearate

How To Use

4 Caplets


496390 MuscleTech™