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Buy GP Deca 300(Deca Durabolin, Deca) | Geneza Pharmaceuticals |


GP Deca 300 is a popular anabolic steroid that contains Nandrolone Decanoate. It's known for promoting muscle growth, increasing strength, and improving recovery.

GP Deca 300 (Deca Durabolin) by Geneza Pharmaceuticals: Uses, Pros and Cons, Cycle, Prices, and Side Effects

GP Deca 300, produced by Geneza Pharmaceuticals, is an anabolic steroid that contains Nandrolone Decanoate as its active ingredient. It's known for its ability to promote muscle growth, increase strength, and improve recovery. In this article, we'll explore the benefits and drawbacks of GP Deca 300, as well as provide information on its typical cycle and potential side effects.

Active Ingredients

The active ingredient in GP Deca 300 is Nandrolone Decanoate, a type of anabolic steroid that's similar to testosterone but with a longer half-life. It works by increasing protein synthesis in the body, which promotes muscle growth and enhances recovery. It also increases the amount of red blood cells in the body, which improves endurance and stamina.

Why People Use It

People use GP Deca 300 for a variety of reasons, including:

  • Building muscle mass and strength
  • Improving recovery after workouts
  • Increasing endurance and stamina
  • Enhancing athletic performance

Pros and Cons

Here are some pros and cons of using GP Deca 300:


  • Promotes muscle growth
  • Improves recovery after workouts
  • Increases endurance and stamina
  • Enhances athletic performance
  • Long-lasting effects


  • May cause side effects
  • Can be expensive
  • May be illegal to use without a prescription

Typical Cycle

A typical cycle of GP Deca 300 lasts between 8-12 weeks, with dosages ranging from 200-600mg per week. It's often stacked with other steroids, such as testosterone or Dianabol, to enhance its effects. PCT (post-cycle therapy) is recommended after using GP Deca 300 to help restore natural testosterone production.

Prices and Buying

The price of GP Deca 300 varies depending on where you buy it from and the dosage strength. It can be purchased online from various sources, but it's important to buy from a reputable supplier to ensure the product is genuine and safe to use.

Possible Side Effects

Some possible side effects of using GP Deca 300 include:

  • Acne
  • Hair loss
  • Increased body hair growth
  • Mood changes
  • Decreased libido
  • Water retention
  • Increased risk of heart disease


Q: Is GP Deca 300 legal?

A: It's illegal to use GP Deca 300 without a prescription in most countries.

Q: How long does GP Deca 300 stay in your system?

A: The half-life of GP Deca 300 is approximately 15 days, which means it can stay in the body for several weeks after the last dose.

Q: Can women use GP Deca 300?

A: GP Deca 300 is not recommended for women due to its potential masculinizing effects.

Q: How should GP Deca 300 be stored?

A: GP Deca 300 should be stored in a cool, dry place away from direct sunlight and heat.

Q: Is GP Deca 300 safe to use?

A: Like any steroid, GP Deca 300 comes with potential risks and side effects. It should only be used under the guidance of a healthcare professional and in accordance with dosage and cycle recommendations.

Q: How long does it take to see results from GP Deca 300?

A: Results can vary depending on individual factors such as diet, training, and dosage. However, most people begin to see results within a few weeks of starting GP Deca 300.

Q: Can GP Deca 300 be detected in drug tests?

A: Yes, GP Deca 300 can be detected in drug tests for several weeks after the last dose.

Q: What should I do if I experience side effects from GP Deca 300?

A: If you experience any adverse effects from GP Deca 300, stop using it and contact your healthcare provider immediately.


GP Deca 300 is a powerful anabolic steroid that can offer significant benefits in terms of muscle growth, strength, and recovery. However, it's important to use it responsibly and under the guidance of a healthcare professional. By following recommended dosage and cycle guidelines, and being aware of potential side effects, you can make an informed decision about whether GP Deca 300 is right for you.

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