Quick Take: If you’ve been in the fitness scene for a certain period of time, you’ve likely heard of Cellucor and MuscleTech. Both companies are among the most competitive brands of bodybuilding supplements and among their ranks are P6 Extreme Pump and N.O.x Test SX-7 Black Onyx. Both are PWO/testosterone boosting hybrids that aim to boost “free” testosterone as well as exercise performance using solid natural ingredients. This versus review is meant to distinguish their differences and ultimately, crown one supplement THE winner. Get to reading, boys!
P6 Extreme Pump Features
- A product of Cellucor, P6 Extreme Pump is part of the brand’s P6 line of supplements
- Typical of Cellucor’s P6 series, P6 Extreme Pump is a heavily dosed proprietary blend of premium ingredients
- For its pre-workout (PWO) twist, it adds two branded versions of L-Arginine in Nitrosigine® and N03-T®
- To complement the two above ingredients, P6 Extreme Pump also has herbs that boost “free” testosterone as well as physical performance
- Also has herbs to block T-killing hormones such as estrogen, cortisol, and DHT
- Click here to read my full review on P6 Extreme Pump
N.O.x Test SX-7 Black Onyx Features
- A product of Muscle Tech, N.O.x Test SX-7 Black Onyx is part of the brand’s Black Onyx line of supplements
- The formula structure is basically calcium plus 2 separate non-proprietary blends
- The first blend, N.O. Pump Matrix, includes two nitric oxide boosting amino acids as well as proanthocyanidin from red wine
- The second blend is an Anabolic/Anti-Catabolic Complex with 5 ingredients that all help to build leaner but stronger and larger muscles
- N.O.x Test SX-7 Black Onyx also includes Quercetin which is an ingredient that helps sustain the boosts in “free” testosterone
- Click here to read my full review on N.O.x Test SX-7 Black Onyx
P6 Extreme Pump VS. N.O.x Test SX-7 Black Onyx: My Analysis
Both P6 Extreme Pump and N.O.x Test SX-7 Black Onyx aim for the same thing which is to boost “free” testosterone as well as give you a better workout experience through boosts in nitric oxide. Both of these also come from highly reputable companies in Cellucor and MuscleTech. They are, however, structured very differently.
P6 Extreme Pump is a single heavily dosed proprietary formula of 9 potent ingredients
Because of its nature as a proprietary blend, there is no way I can know how much its ingredients are specifically dosed. Thankfully, P6 Extreme Pump has a massive total dosage of 3175 mg which should be enough to supply all of its 9 high quality ingredients.
The 3 top ingredients are premium ashwagandha and two branded versions of L-arginine. The way I see it, these 3 ingredients form the pillars of P6 Extreme Pump as their combined benefits grant you boosts in circulation (gym pumps) as well as sustained levels of testosterone from ashwagandha’s adaptogenic properties. Furthermore, the two versions of L-Arginine take different pathways that theoretically, may grant you a more sustained boost in circulation.
These are then followed by ingredients that, all in all, further boost “free” testosterone by limiting the levels of other T-killing hormones such as estrogen, DHT, cortisol, and SHBG. Overall, P6 Extreme Pump helps you grow those stubborn muscles by intensifying your workouts and supporting your recovery via boosts in circulation and “free” testosterone.
N.O.x Test SX-7 Black Onyx is a 10-ingredient formula divided into 2 separate blends
This stack kicks it off with Calcium which is a mineral that helps boost the T-boosts you typically get with exercise. This is then followed by two blends:
- N.O. Pump Matrix
- Anabolic/Anti-Catabolic Complex
Obviously, the N.O. Pump Matrix has ingredients that help boost nitric oxide. Specifically, these ingredients are L-Citrulline, L-Arginine, and proanthocyanidis extracted from Red Wine. This 3-pronged approach gives your body different routes at improving circulation and therefore gives N.O.x Test SX-7 Black Onyx a better likelihood of working. Furthermore, Citrulline has the added advantage of improving muscle strength that’ll make your workouts more intense.
The second blend, the Anabolic/Anti-Catabolic Complex, is exactly what its name suggests. It helps reduce cortisol and estrogen as well as boost “free” testosterone so your body’s internal environment is optimized for anabolic muscle growth. It also further boosts NO and promote lean muscle. Back tracking to the previous blend, the N.O. Pump Matrix also has Quercetin which helps sustain this product’s boost in “free” testosterone so your body stays anabolic for longer.
Conclusion: Which is Better?
Both P6 Extreme Pump and N.O.x Test SX-7 work in very, and I mean VERY similar ways. Whatever one stack can do, the other can do too. That said, this battle is one that I think can go both ways. However, I’m giving the slight edge to N.O.x Test SX-7 Black Onyx.
P6 Extreme Pump’s proprietary nature is mainly what cost it the battle. To be fair, its total dose should make each of its ingredients effective but the uncertainty that comes with not knowing the individual dosages of its ingredients is, to me, the largest flaw in its supposedly solid design. If you trust Cellucor products over MuscleTech though, there’s nothing wrong with opting to go with P6 Extreme Pump.
On the other hand, N.O.x Test SX-7 makes all the dosages of its ingredients known and even segregated them into two separate blends that serve different purposes. In terms of PWO benefits, I also feel slightly more confident in N.O.x Test SX-7 because it takes 3 routes at boosting nitric oxide. If brand preferences were thrown out of the window and you’re at a dead-lock between these two, I say go for N.O.x Test SX-7 just because it’s more predictable.