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Go Hard Bundle

The best solution if you are looking for a mix of products to boost your workouts and push yourself further than ever!
  • PRE-300 - great quality pre-workout with 300 mg Caffeine, 3000 mg high quality Creatine and 3000 mg Beta-Alanine
  • Testo 4HD - Award winning Testo enhancer with Tribulus 30% Protodioscin
  • T-shirt from the newest Gymnordic collection
  • You save % and get a free t-shirt

GN Nutrition PRE-300

is a hardcore pre-workout for the experienced user, who is looking for the most complete and effective pre-workout on the market!

We only use the highest quality ingredients, backed up by science, combined with the newest flavoring system to make a highly concentrated explosive dosage of the best tasting pre-workout drink ever.

Above description is maybe something you have heard? The fact is that preworkout supplements all claim to be the best more or less. This makes it hard to understand the difference and know what to choose.

Let’s review the full ingredient breakdown

Caffeine 300 mg

When taken in optimal doses, can significantly increase performance, focus, and alertness, as well as boost metabolic rate. GN Nutrition Caffeine has also been shown to reduce soreness enabling you to live more freely and comfortably post workout.


Creatine 3000 mg

Three Grams of the Higest and purest creatine available (200 mech quality). Creatineis the most scientifically proven supplement known to increases muscle size, strength, and sports performance when used in a clinical dosage as in PRE-300.

Creatine works by increasing the total muscle creatine pool comprised of free creatine as well as creatine phosphate which increases physical performance during repeated, high intensity exercise.


Beta-Alanine 3000 mg

Beta alanine is a non-essential amino acid used by muscle cells to synthesise Carnosine, which acts as an acid buffer during exercise and helps promote intramuscular pH balance to prevent the onset of 'the burn' and muscular fatigue.

Known to have a synergistic effect when combined with high quality creatine as in PRE-300.


L-Arginine 1000mg + L-Citrulline 2000mg

L-Arginine (AAKG) is a conditionally essential amino acid. It is important for blood flow and nitric oxide level. L-Arginine in PRE-300 is added to enhance intra-workout performance by supporting creatine production, improving blood flow, and boosting nitric oxide levels in the blood.

This suggests that AAKG may be able to help you extend your total fatigue time while boosting strength output.

Studies show that higher levels of nitrix oxide during your workout result in more intense pumps, better performance, and greater strength. The classic pump feeling is when the blood is pooling in the muscle and this will help support strength and muscle gains.


L-Citrulline is an amino acid. It is turned into L-arginine in the kidneys after supplementation, which means L-citrulline supplementation is a more effective method of increasing L-arginine levels in the body than L-arginine supplementation and the combination optimal


Vitamin B1, B3, B6 and B12

Vitamin B1, thiamin, or thiamine, enables the body to use carbohydrates as energy. It is essential for glucose metabolism, and it plays a key role in nerve, muscle, and heart function. Vitamin B3, also called niacin, is one of the eight B-complex water-soluble vitamins. Niacin has a wide range of uses in the body, helping functions in the digestive system, skin and nervous system Vitamin B6 actives enzymes responsible for producing energy, neurotransmitters, red blood cells and white blood cells that support the immune system. You may help keep your heart healthy by getting an adequate amount of vitamin B6 because it removes the amino acid homocysteine from your blood. Healthy nerve function relies on vitamin B12, which helps with production of myelin, the fatty protective coating that insulates nerves and speeds nerve conduction.

    Testo 4HD

    Your sport is everything to you: bodybuilding is a way of life rather than just a hobby. Which is why you don’t accept just any testosterone enhancer; only the very best is good enough for you. You need a product that is head and shoulders above the rest; a product that gives you explosive strength by adding free testosterone. Is this what you are looking for? A drier, more muscled physique, a higher training intensity, a relentless training aggression and unheard-of intensity during your workouts? If so, Testo-4HD is the product for you.

      The benefits of Testo 4HD

      • Award winning Testo enhancer
      • Contains Tribulus 30% Protodioscin
      • Strongest anabolic formula ever invented
      • Increase your training agression
      • Stimulate your testosterone level now!


      Why is Testo-4HD so much stronger than other testosterone enhancers?

      Testo-4HD contains not only a revolutionary and unique anabolic formula, it is also a 100% natural compound. Testo-4HD increases the levels of free testosterone in your body as a result of which your strength, mass and training intensity increase dramatically. Testo-4HD contains only ingredients that work, with the highest possible percentage of the active ingredient. So not just Tribulus, but the highest possible percentage of the active extract: 30% protodioscin.

      Testo-4HD contains everything you need to take your testosterone production to the highest level. Each dose contains 10 powerful and clinically proven ingredients that work in synergy and ensure that androgen receptors are stimulated time and time again to make more testosterone. Your male characteristics are enhanced, particularly your training intensity, your self-confidence and your training aggression. That is a lot already, but the Stacker also offers a drastic increase in muscle mass, muscular pump and an amazing physique.

53.48 EUR

70.63 EUR

  1. Go Hard Tshirt

    Go Hard or Go Harder Male +0 eur

  2. Testo Boost

    Testo 4HD Standard +0 eur

  3. Preworkout

    PRE-300 Strawberry Kiwi +0 eur