rsp nutrition z-elite review of its benefits, side effects and more
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RSP Nutrition Z-Elite Testosterone Booster Review

About RSP Nutrition Z-Elite

Here we have Z-Elite testosterone booster by RSP Nutrition. It’s a recovery and sleep supplement which helps you maintain healthy testosterone levels and recover faster from your grueling workouts.

In case you’re wondering about RSP Nutrition, it’s a sports supplement company based in Miami, Florida. They have been around since 2013, and their goal is to provide their customers with premium nutritional supplements for muscle gains, strength and fat loss.

So how premium, or better said, effective is RSP Nutrition Z-Elite? According to the manufacturers, it should give you the following benefits;

  • Supports Healthy Sleep
  • Promotes Healthy Testosterone Levels
  • Supports Muscle Growth and Recovery

From what I’ve seen online, there are tons of user reviews of this supplement; with lots of conflicting opinions. But you can’t tell how good a product is based on testimonials alone.

We need to do a thorough inspection of its ingredient formula in this RSP Nutrition Z-Elite review to see if it’s as good as it’s claimed to be!

How to Use RSP Nutrition Z-Elite

For optimal results, you should take 3 capsules of RSP Nutrition Z-Elite 30-60 minutes before you go to sleep. I wouldn’t recommend taking it earlier than that, as melatonin in it can make you feel groggy and tired way before it’s supposed to.

As for the packaging, RSP Nutrition Z-Elite comes in bottles of 180 capsules for a price of 17ish dollars. With a daily serving of 3 capsules, this means the product will last you 2 months. It’s a darn attractive price!

But as we all know… cheap products could also mean cheap and low-quality ingredients. So let’s take a closer look at what exactly is inside RSP Nutrition Z-Elite.

Z-Elite Ingredients

Right away you’ll notice there are no proprietary blends in RSP Nutrition Z-Elite, which is great. All of the ingredients and their respective dosages are shown, which helps us know what we’re putting into our body.

There are also no artificial or cheap ingredients in RSP Nutrition Z-Elite, which is always a plus – especially when taking its low price in consideration.

Unfortunately, this is where the positive sides to this product end. RSP Nutrition Z-Elite has five active ingredients, out of which only one may significantly affect testosterone. For a sleep aid, this could be enough, but definitely not for a quality testosterone booster!

rsp nutrition z elite ingredients

Also, its low dose of 200IU (international units) of vitamin D3 makes this ingredient virtually useless. Such a low dose is unlikely to have any impact on your body.

As for the other ingredients, aka, fillers, RSP Nutrition Z-Elite contains; Gelatin, Silicon Dioxide, and Magnesium Stearate.

Magnesium Stearate is popular chemical filler used in many sports and nutrition supplements. However, the problem is that it can hinder the absorption of the other ingredients. In other words, it may reduce the overall efficacy of the supplement.

Here’s a full list of the active ingredients of RSP Nutrition Z-Elite:

Zinc (Zinc Aspartate and Monomethionine) – A mineral important for enzyme and hormone function in the body, including testosterone. It’s also a powerful antioxidant and immune booster. RSP Nutrition Z-Elite has 35 milligrams of Zinc Aspartate and Monomethionine, which is an efficient dose. Here’s a study showing the effects of zinc supplementation on T levels:

Magnesium (Magnesium Aspartate) – Magnesium is another mineral that plays a pivotal role in our health. It regulates our muscle function, cardiovascular system and nerve signaling in your brain. If you’re deficient in magnesium (and many are), you’ll sleep better and have reduced stress levels from supplementing it.

Vitamin B6 – This vitamin works synergistically with magnesium and zinc, as it promotes their absorption within the body. It also promotes androgen production, which is a precursor to testosterone. Comes with a healthy dose of 12 milligrams.

Vitamin D3 – This would be a game-changer among RSP Nutrition Z-Elite ingredients, only if it came in a bigger dose. 200 International Units is simply not enough to help you raise testosterone, or aid your sleep in any significant way. Really, really frustrating to see the potential of this ingredient be wasted in such a way. More about the effective dosages of vitamin D3 can be found here;

Melatonin – Now this is a controversial one. Melatonin is a hormone which is produced by your brain, it helps you regulate sleep. A melatonin supplement can help improve sleep quality, and help you get to sleep faster. However, there are many conflicted user experiences on this ingredient – some say it helped them a lot, some say it didn’t work much. And then there are users who say that it made them feel too groggy and tired the next morning. I would recommend trying a lower dose of RSP Nutrition Z-Elite first (perhaps 1-2 capsules), so you can see how your body reacts to melatonin supplementation. See more on this ingredient here;

Side Effects

To our knowledge, there are no reported side effects to using RSP Nutrition Z-Elite. One thing you should be cautious of though, is the high dose of zinc contained in the supplement.

Some people are sensitive to higher doses of this ingredient, especially when they take it on an empty stomach. To avoid this problem, I would suggest taking RSP Nutrition Z-Elite just after your last meal; ideally 1-1,5 hour before going to sleep.

Pros and cons of  RSP Nutrition Z-Elite

Looking at all of its advantages and flaws in this RSP Nutrition Z-Elite Review, this supplement can be a decent sleep aid, but not a testosterone booster. Here are the key reasons why:


  • Low price
  • Zinc is good for regulating testosterone if you’re deficient in it
  • Melatonin, Magnesium, and B6 can help you relax, and get a better quality sleep


  • Only 5 active ingredients, out of which only one (zinc) may help with testosterone
  • Low dose of Vitamin D3 – 200 IU is not enough to help you with testosterone or sleep
  • Oral melatonin supplementation can make you feel too tired and groggy the next morning, and it may have little to no effect on improving your sleep quality. Still, this varies from person to person.
  • Magnesium Stearate is a chemical filler which can lessen the quality and absorption of other ingredients.

Conclusion to RSP Nutrition Z-Elite Review

With its fair price and a few good ingredients, RSP Nutrition Z-Elite can be a good supplement for you if you are having trouble falling asleep or if you’re someone who wakes up multiple times during the night.

However, for a testosterone booster, RSP Nutrition Z-Elite lacks more quality ingredients. Zinc on its own is not enough, maybe higher amounts of vitamin D3 would help. I feel this product would be much better for sleep and testosterone if they put a few more ingredients like D-Aspartic Acid, Ginseng, or Oyster extract. These are all good ingredients which are proven to help boost testosterone levels.

Speaking of which, see our Top Testosterone Booster Reviews which contain these, plus other top quality ingredients for helping your raise testosterone and build muscle.

All in all, RSP Nutrition Z-Elite is a supplement which looks potent from the outside. But when looking at its ingredients and their dosages, it makes you wonder if it’s really worth the investment – despite the cheap price. For that matter, you could just buy a regular zinc supplement and it would likely give you the same results for boosting testosterone as RSP Nutrition Z-Elite.

Therefore, if you’re serious about maximizing your muscle gains, and reducing recovery time – make sure to see what other options are out there before choosing this supplement!

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