Olimp Redweiler Review


This is a pre-workout that’s seriously popular in Europe, especially France and Germany. So it’ll be interesting to see whether it can keep up with our highest rated pre-workouts.

Claimed to promote:

  • Energy
  • Focus

We always find it strange when companies don’t add ingredients designed to enhance your muscle pump; for us, this is a key benefit that all pre-workouts should offer.

Not only that, we see some nutrients more suited to fat burner supplements, which aren’t needed in Redweiler. We’ll explain all of this in more detail further down this review.

But first, we’ll tell you about the company who makes Redweiler.

About The Company

As we mentioned, Olimp Sport Nutrition are a big name in Europe, but they haven’t managed to make the same impact in the USA or UK. After looking at their website, we believe that this company were founded in the early 1990’s, and released their first creatine supplement in 1995.

Since then, they’ve marketed a wide range of products, from testosterone boosters and fat burners, to this pre-workout supplement.

The Ingredients and How They Work

We were quite surprised to see so many nutrients on Redweiler’s ingredient list; we always recommend companies to add less than 10 ingredients to their products, but this pre-workout contains 15 nutrients overall.

But to save you from getting bored, we’ll be looking at the 9 most important ingredients in Redweiler; this will give you enough of a ‘taste’ to help you make your own mind up about this pre-workout.

See for yourself:


Arginine Alpha-Ketoglutarate 

Also known as AAKG, this is the salt of Arginine and Alpha-Ketoglutarate, that’s thought to raise your nitric oxide levels. However, it hasn’t been very reliable in studies.

Here’s why; arginine has a bad absorption rate, meaning it’s not very useful when consumed in supplements.

As AAKG contains an extract from arginine, it’s also likely to have a poor absorption rate. Ultimately, if you’re wanting enhanced muscle pumps, then citrulline malate is the best option for you.

Citrulline Malate 

We’re not sure why Olimp Sport Nutrition added AAKG alongside citrulline malate (you only need citrulline malate to raise your nitric oxide levels).

However, it’s important to know that citrulline malate hasn’t been optimally dosed in Redweiler; the optimal dosage of this ingredient is 6.000g, but Olimp Sport Nutrition has only added a 2,250mg (and that’s if you’re prepared to only have 18 servings of this product).

As a result, we recommend you to make sure that the pre-workout you choose to buy, contains an optimal 6,000mg citrulline malate – to ensure that it works.

Ultimately, as Olimp Sport Ntuiritio have underdosed this nutrient, it’s not likely to enhance your muscle pumps here.


Everyone has mixed feelings about Beta-Alanine.

Why? Answer: Because it can cause a side effect called paresthesia, but it can also improve your muscular endurance in the gym.

As a result, we’re leaving this to you, to decide whether it’s worth suffering from paresthesia to experience beta-alanine’s benefit. However, it’s also worth knowing that creatine monohydrate offers the same benefit as beta-alanine, without causing any side effects.

In fact, Olimp Sport Nutrition have actually added creatine monohydrate into this pre-workout – so we’re not sure why they’ve added beta-alanine here (both are not needed here).

But wait, what’s parethesia? Answer: a tingling on the skin of your face, chest, hands, and extremities. It makes you itch and it can really put you off from your gym session.

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Creatine Monohydrate 

We’ve just mentioned that creatine monohydrate offers the same benefit as beta-alanine, without causing any side effects. Well, this is true, as this compound has shown to enhance your strength and endurance in the gym.

In fact, creatine has been used for decades and is one of the most reliable nutrients in the industry. As a result, we always recommend pre-workouts containing creatine monohydrate, and consider it to be a key ingredient in these products.

Creatine Malate 

You might be confused about this ingredient, but it’s simply another form of creatine (creatine mixed with malic acid). However, no study has shown that this is more beneficial than other forms of creatine – so there’s not much point in having numerous different forms of creatine in 1 supplement.

If we had to choose one, we’d always pick creatine monohydrate; this has proven to be the most reliable form of creatine through the years.


We always prefer caffeine over l-tyrosine in pre-workouts (caffeine offers elevated energy levels, strength endurance and focus, while l-tyrosine only offers enhanced focus).

As a result, we prefer l-tyrosine in nootropic supplements. However, l-tyrosine doesn’t cause any side effects, so there’s no harm in this being here.

However, we’ll repeat that companies should simply add caffeine to their supplements – if you’re looking to improve your focus in the gym (but make sure that you choose pre-workouts containing under 250mg caffeine per serving).


Right, so here’s one of our favorite ingredients in pre-workout supplements. Caffeine has proven itself to be safe and effective at raising your energy levels when consumed in dosages under 250mg per serving.

This is because large dosages of caffeine can cause jittery feelings, which you’ll want to avoid.

But there’s a problem; if you want to consume more citrulline malate, then you’ll be consuming a massive 300mg caffeine (which is likely to cause jitters and energy crashes).

As a result, this is a great example of why Olimp Sport Nutrition hasn’t dosed Redweiler well here.

Cayenne Pepper Extract 

This is a key fat burning ingredient, but it’s not needed in a pre-workout supplement.

Why? Answer: the main benefit of pre-workouts is to help you reach your goal, regardless if it’s fat loss or muscle gain.

If you’re looking to add muscle mass, then cayenne pepper will be useless, as you’ll be consuming a calorie surplus and unable to lose a great deal of body fat at the same time.

As a result, we don’t believe that it’s necessary for companies to add fat burning nutrients into pre-workout supplements. If you want to lose fat, then fat burner supplements will be much more beneficial for you.

Black Pepper Extract 

Now, this is the same black pepper that you’ll add to your food. Yes, it can make your meals taste better, but it also improve the digestion of nutrients (and therefore their absorption rates too).

As a result, black pepper extract is a useful addition to any supplement. But we’ll never consider it as a key ingredient.


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Pros and Cons


  • Contains citrulline malate
  • Creatine monohydrate boosts strength & endurance


  • Can cause side effects
  • Citrulline malate is underdosed
  • Caffeine is overdosed

Side Effects

In terms of side effects, the main concern is that Redweiler contains too much caffeine (if you want to consume the largest dosage of citrulline malate). 300mg caffeine is likely to cause you jitters and energy crashes, which you want to avoid.

But it’s also worth noting that beta-alanine can cause a side effect called paresthesia (tingling on the skin of your face, chest, arms and extremities).

As a result, we recommend that you consume under 250mg caffeine when taking supplements.

See the possible side effects you might suffer:

  • Jitters
  • Energy crashes
  • Paresthesia

See SupplementTester’s
Highest Rated Pre Workouts Here

Review Conclusion

It’s never a good sign when a company adds over 10 ingredients to their supplement. This means they want you to think it costs more to produce, so they can charge a higher price.

In a nutshell, this is why it’s so important to check the dosages of each ingredient inside these products. And thanks to us, you’ll know that important nutrients have been underdosed, while caffeine has been potentially overdosed if you choose to take the biggest serving available to this pre workout.

As a result, it’s easy to see why there are better pre workouts on the market, at a better price too.

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