Nandrolone is considered among the best and most widely used steroids in the entire history of bodybuilding. Nandrolone is by far one of the most popular anabolic and androgenic steroids (AAS) of all time. The steroid was created many years ago in the 1950s and it quickly became popular among bodybuilders. They discovered it to be a powerful compound that can be used efficiently while remaining fairly safe.

This is an injectable steroid and is perhaps the most widely used bulking product. Is good to know that Nandrolone is an injectable steroid only. There is no oral version of Nandrolone and anyone claiming to offer it is a liar.

  • Nandrolone may be used during cutting cycles too. But since it aromatizes, it is best used during bulking cycles when packing on muscles and strength is the main concern.

The injectable anabolic steroid firstly appeared with Phenylpropionate attached ester, which is a short version. Later, Decanoate (a much longer ester) was attached and it got more popular than the original version.

NPP vs Deca


It is removed from the system in about 3 days. That’s why it is recommended to use it every day or at least every other day in order to maintain stable blood levels.

It is removed from the system in about 12 days. That’s why once a week administration is going to be enough to maintain stable blood levels.

Because of the much less frequency of administration required, Deca (Nandrolone Decanoate) ended up being a more popular version of Nandrolone compared to NPP (Nandrolone Phenylpropionate).

Nandrolone Phenylpropionate (NPP) – Durabolin


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NPP is amazing for those who want to go for shorter cycles and quick blasts and do not find a problem having a frequent pinning schedule. Because it kicks in the system faster, cycles with NPP are usually shorter.

Users of NPP are reporting similar effects and benefits of Deca Durabolin, but they are controlling the side effects easier. So they do not get as much water retention. In addition to that, NPP is having a shorter ester and that means that you’re going to get a higher dosage of Nandrolone itself per milliliter compared to the longer Decanoate version.

Nandrolone Decanoate (Deca) – Deca Durabolin


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Nandrolone Decanoate is the most popular version because it doesn’t require as often a pinning schedule. This allows for longer cycle lengths of 12-16 weeks and that’s what usually steroid users go for during their bulking needs. Some run Deca Durabolin for as long as 20 weeks.

The compound is more likely to cause water retention. However, by taking into consideration that holding some water may be beneficial in bulking cycles – no wonder it got so popular.

Nandrolone Administration

In the end, the difference between the 2 steroids is in how often you should inject them and this would dictate the cycle length.

Most commonly they are used for bulking cycles. But if used for cutting, NPP is often a more popular version.

Dosages are generally the same, yet Deca Durabolin may be used in slightly higher dosages. This is because it contains less Nandrolone per milliliter than NPP. Moreover, it is because heavy bulkers may require higher doses. Compared to cutting cycles that usually need lower doses.

  • So Nandrolone dosage is common anywhere between 300 mg and 600 mg per week. Some people go for as much as 1000 mg per week or even 1500 mg weekly – but those are huge dosages. 700 mg per week is usually the maximum for NPP.

Nandrolone cycles of 8 weeks or shorter are going with NPP. Longer cycles go well with Deca Durabolin. nandrolone-deca-npp-physique


In the end, both Nandrolone versions are amazing for your physique and performance enhancement purposes. Especially when talking about bulking season. That’s because Nandrolone would do an amazing job in increasing strength a lot as well as packing on muscle mass. Is just the fact that NPP is better for leaner muscles, Deca for bulk up!

Which version to choose highly depends on your goals, tolerance, personal experience, and response, etc.

Remember that it is always recommended to stack Nandrolone with Testosterone. This way you would enhance cycle efficiency and reduce side effects too! Having an aromatase inhibitor and cabergoline handy would be a great idea too. Often, Deca is stacked with other bulking steroids too like Dianabol, Trenbolone, etc.

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