Tropinol XP Review



We didn’t know much about IForce Nutrition or their testosterone booster, Tropinol XP – so it caught our attention when we saw it on the shelves.

Claimed to promote:

  • Testosterone levels
  • Muscle gains
  • Energy

For $44.87 per 100 servings, it sounds like a good deal; so let’s see how credible the company are, before taking a look at what’s inside Tropinol XP.

About The Company

iForce Nutrition are a sports nutrition brand that claim to use ‘cutting edge science’ in their products. They have 3 sponsored athletes, with only 1 of them being a professional (Brooke Walker).

In terms of supplements, iForce Nutrition offers a variety of products, from protein powders to pre workouts. But as you know, we’ll be taking a look at their testosterone booster here, Tropinol XP.

The Ingredients and How They Work

While this test booster contains one of our favorite ingredients, it also comes with 3 proprietary blends – something we try to avoid at all times.

What are proprietary blends? Well, they’re when companies hide their ingredients under fancy titles, so you can’t see the exact dosage of each nutrient inside. This leads to a number of problems; such as increased risk of side effects, and potentially wasting your money.

Ultimately, the dosage measures how effective an ingredient will be – so with this in mind, let’s see what’s inside Tropinol XP:


Vitamin D3 

This is one of the best ingredients you can find in testosterone booster supplements. vitamin d3 has shown to enhance your testosterone levels, as well as improve your test levels in numerous studies.

Not only that, vitamin d3 also boosts your general health – there’s nothing negative about this ingredient, but you have to take the right dosage.

Here’s where the problems start; the optimal dosage for vitamin d3 is upwards of 3,332IU per serving. As you can see from the ingredient list, Tropinol XP only contains 1250UI – making it an ineffective dosage.

Ultimately, this is a great example of how important getting the dosages of ingredients is.

Fadogia Agrestis 

We’ve not seen fodogia agrestis in any test boosters before, so this tells you how uncommon this ingredient is. In a nutshell, this is a shrubbery that’s believed to strengthen your erections.

However, while it seems effective in rats, fadogia agrestis hasn’t shown to work in any human studies. Ultimately, this makes it an unreliable ingredient in Tropinol XP.


Also known as horny goat weed, this is an erectile aid and aphrodisiac used in traditional Chinese medicine. But it comes with the same problem as fadogia agrestis – it’s not shown to raise testosterone levels in any human studies, making it unreliable and most likely, ineffective.

25R-Dione Spirost-4-Ene, 6 Dione 

Again, this is the first time we’ve seen this ingredient in any test booster – it’s alot is known about this ingredient, so there’s no proof that it works.

Potassium Nitrate 

In case you’re unaware, this is a mixture of potassium and nitrate – it can help balance your salt and potassium levels and also have a slight effect on blood flow.

However, most importantly, it’s not shown to enhance your testosterone levels.

Coleus Forskohlii 

This is a herb that’s been used in traditional medicine for a while. It’s believed to boost testosterone and fat loss – and studies have shown that it actually has a minimal effect on these.

Although it’s not hugely beneficial, at least it has a slightly positive effect – it’s better than most of the other ineffective ingredients in Tropinol XP.

Zinc Aspartate 

Finally, an ingredient worth talking about; Zinc has shown to help raise your testosterone levels, and your body actually needs an optimal amount of this mineral to do so.

However, it can be potentially harmful when inside proprietary blends (which it is inside Tropinol XP). In a nutshell, you should stay below 40mg Zinc per day to avoid side effect such as headaches. As you don’t know the amount inside this test booster, you’re at an increased risk of suffering from side effects.

For the best results, we recommend looking for T-Boosters that contain no more than 10mg Zing per daily serving.


Check out which ingredients work and which don’t in our
– Testosterone Booster ingredients guide –

Pros and Cons


  • Contains vitamin d3
  • Zinc can boost test levels


  • Increased risk of side effects
  • Contains proprietary blends
  • Underdosed vitamin d3
  • Numerous ineffective ingredients

Side Effects

Any supplement containing proprietary blends increases your risk of side effects. As one of the blends includes Zinc, which can cause numerous side effects in dosages over 40mg per serving, you might suffer as a result with Tropinol XP.

This serves as a reminder of why you should avoid supplements containing proprietary blends, and why companies need to stop using them.

Here’s the side effects you might suffer:

  • Nausea
  • Diarrhea
  • Vomiting
  • Metallic taste

Not what you’re looking for? See Our
Top Three Test Boosters Page Here

Review Conclusion

iForce Nutrition has shown that they’ve done some research when formulating Tropinol XP, as they added one of the best ingredients (vitamin d3). However, they clearly didn’t do enough, as they underdosed this ingredient, and added numerous ineffective nutrients into their proprietary blends.

This doesn’t seem like the most popular supplement on the market for good reason; it doesn’t seem likely to work, and the ingredients back this belief up.

We recommend that you look for a product that contains more ingredients shown to work in studies, that don’t contain any proprietary blends.

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