Nandrolone Phenylpropionate

A Guide to Nandrolone Phenylpropionate – Cycle, Stacking, and What to Expect

Before considering using NPP, you should know several things about it, the first of which is that it shares many of the same characteristics as the Nandrolone Decanoate (Deca) compound. In point of fact, Nandrolone Phenylpropionate was the product that was first introduced to the market in the 1950s. 

Because of its potent anabolic effects and relatively weaker androgenic effects compared to those of other steroids, NPP is a popular choice among bodybuilders and performance athletes who want to avoid dealing with more severe estrogenic and other side effects. NPP was initially developed as a treatment for osteoporosis and breast cancer in women. However, due to its potent anabolic effects, it is now also used as a treatment for osteoporosis.

What is Nandrolone Phenylpropionate?

In a nutshell, Nandrolone Phenylpropionate (NPP) is a form of Nandrolone with a phenylpropionate ester attached to it.

Nandrolone decanoate, which is also known by its brand name Deca-Durabolin, is an additional popular form of this steroid compound. Although NPP was also formerly known by the name Durabolin, that moniker is no longer used because it led to confusion between the two forms of the compound.

The hormone Nandrolone is present in both of these preparations in exactly the same chemical form; the only difference is in the ester, which confers a slightly different effect on the body, notably in terms of its half-life, the rate at which it takes effect, and the length of time it remains active in the bloodstream. Because of this, the frequency with which you will need to take your dosages will be different.

When compared to Nandrolone Decanoate, NPP has a shorter half life, and as a result, it requires more frequent injections in order to maintain stable levels.

History of NPP

Not much is known about the history of NPP. This anabolic steroid, which is abbreviated to NPP, has a small ester base. It has never been able to compete with decanoate, which has a larger ester base, in terms of popularity. The primary reason for this is that the Deconoate formulation was more convenient to purchase. It was sold in a wider variety of locations.

Nandrolone Phenylpropionate is being manufactured in clandestine laboratories these days, which is contributing to an increase in the drug’s popularity. Because it is easier to get, it is being utilized more frequently these days.

Because of its illegal status in the United States and many other countries around the world, it is only produced in clandestine laboratories. Although it is now much easier to get than it was in the past, finding NPP is still quite difficult. When prescribed for a medical condition, this steroid is within the bounds of the law. However, the majority of people who use it do so for bodybuilding purposes.

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How Does NPP Work in The Body?

NPP starts the process of protein synthesis in the muscle cells of the body, which is how it exerts its effects. Protein is needed for the growth of muscle, and Nandrolone Phenylpropionate (NPP) acts to deliver more protein than the body would ordinarily make on its own without the assistance of a supplement.

Because it speeds up the metabolism, NPP can also help speed up fat loss. This allows for more caloric expenditure, which in turn leads to more significant weight loss. Nandrolone Phenylpropionate (NPP) also supports in raising the release of antidiuretic hormone (ADH), which helps to rid the body of excess water and aids in reducing bloating during cycles that are targeted to build lean muscle mass rather than fat loss.

NPP also functions as a stimulant of the immune system, helping to encourage higher production of lymphocytes and leukocytes at a much faster level than what would ordinarily be achievable in a healthy individual. This is due to the fact that NPP acts as a potent immune system stimulant. This, in turn, helps your body fight infections and diseases more effectively, helping you feel better overall.

In addition to this, Nandrolone Phenylpropionate has a powerful anabolic impact on connective tissue, which boosts the body’s resilience to fatigue and assists in the prevention of injuries. This is of particular use to athletes, who put their bodies through a significant level of stress on a consistent basis.

Because it causes muscle definition and also serves as a diuretic, NPP can assist people in maintaining a healthy weight by helping them get rid of excess water. Nandrolone Phenylpropionate helps maintain a more slim appearance by increasing the rate at which fat is broken down in the body.

The administration of nandrolone phenylpropionate assists the body in retaining key nutrients such as proteins and carbs, which are required for the growth and repair of muscles as well as for overall vitality.

Another one of NPP’s many benefits is that it serves to strengthen bones, which is another reason why most bodybuilders use it. If a person with osteoporosis or brittle bones takes this steroid, they may recover from their condition considerably more quickly than they would if they did not take Nandrolone Phenylpropionate.

Because of its anabolic qualities, NPP promotes the creation of collagen, which, in turn, serves to guard against the breakdown of muscle tissue that can occur during exercise.

The user’s appetite is also affected by Nandrolone Phenylpropionate; specifically, the user’s desire for food is increased, and the user experiences a sensation of hunger as a result. This might be beneficial for users who are looking to bulk up before an event such as a competition or photoshoot. In addition to this, it assists bulking bodybuilders in retaining water, which ultimately contributes to a more bloated and full appearance.

Nandrolone Phenylpropionate is a supplement that is typically consumed by males who are wanting to build more muscle without having to devote an excessive amount of time to weight training. Users of this steroid may also experience a speedier recovery from their workouts as a result, allowing them to spend less time resting and more time working toward their fitness objectives.

Nandrolone Phenylpropionate is also an option for females who are interested in increasing their muscle mass; however, young women under the age of eighteen should under no circumstances use this steroid. It is not recommended due to the severe negative effects it causes and the tremendous strength growth it would cause, both of which would throw the proportions of a woman’s physique entirely off.

Benefits of Nandrolone Phenylpropionate

A bulking cycle is typically begun by a performance athlete during the off season, and NPP is an effective steroid for use during this phase. Its primary purpose is to increase both size and muscularity. If you’re looking for a mass builder that many bodybuilders swear by, you’ll find that this one lives up to your expectations. Although it acts quite quickly, growth won’t happen very quickly at all. Despite this, you can expect muscle growth to happen in a consistent manner.

Keep in mind that in order for you to grow at a healthy rate, you will need to consume enough calories. This means you should consume more calories than your body is able to burn. If you maintain a healthy diet, the benefits of NPP will be maximized for you. Because it speeds up metabolism, performance athletes might also notice their bodies become leaner.

When you are in a bulking phase, including Nandrolone Phenylpropionate in your routine will make it easier for you to recover from injuries and workouts.

Additionally, many people choose to use this hormone during their cutting phases. On the other hand, it is better known as a steroid for gaining mass than for reducing fat! It will prevent you from losing lean muscle mass while cutting.

NPP is an option to consider if you are looking for exceptional pain relief and recovery from joint discomfort. In order to obtain this benefit, a significant number of bodybuilders choose to take it in lower doses. The steroid doesn’t mask symptoms. Instead, it offers a genuine sense of relief. Gains in strength are another possible side effect of using this steroid. However, this is not typically the reason that people use it.

The following is a list of the most important advantages and outcomes that you can anticipate from using NPP:

Muscle Mass

NPP is one of the best mass builders available, which is why so many guys include it in every bulking cycle they do. One of the most desirable outcomes of NPP steroid is the consistent and rapid acquisition of high-quality muscle. However, if you are looking for both high quality and high quantity muscle gains, then NPP is the supplement for you. This is not a compound that works extremely quickly to assist you in gaining mass quickly.


Because NPP has such beneficial therapeutic effects, in particular for the joints, recovery times will be faster. You should anticipate recovering more quickly and being able to start your next workout at the gym much sooner, all while experiencing significantly less muscle and joint soreness.

Maintains Lean Muscle

Maintaining lean muscle mass during the off season is made easier by the superior metabolic properties that NPP possesses. As a result of these properties, it will be easier for you to keep your lean gains during the off season. In addition, the use of NPP during a cutting cycle helps you maintain your muscle mass even as you work to reduce your overall body fat percentage. Once more, this is a result of the high metabolic properties that Nandrolone possesses. Although steroid NPP is not used as frequently as a cutting steroid as it is used for bulking, it is still able to play a highly beneficial role in a cutting cycle for any user who is aware of its functions and advantages.


Although it is possible that some users will experience a slight increase in strength, NPP is not widely known for its capacity to significantly increase strength to a level that is observable. If you combine Nandrolone Propionate (NPP) with other anabolic steroids, it is highly likely that the other steroids will be the ones to give you the strength boost you desire. Nandrolone is not particularly effective in this regard.

In addition to its use for reducing body fat and increasing lean muscle mass, nandrolone is also used for general athletic purposes. Because of this, it is a highly versatile steroid that is frequently combined with other compounds so that it can contribute to the achievement of more specific objectives.

Nandrolone Phenylpropionate Side Effects

Nandrolone Phenylpropionate (NPP) Side Effects

Some users report experiencing unwanted side effects while using this steroid. Despite this, it is not one of the steroids that are notorious for unpleasant effects. You need to have an understanding of how the steroid works in order to be able to avoid or mitigate the negative effects. To be sure, it is possible for the vast majority of males to avoid all of the negative effects of this anabolic steroid. The following is a list of the most frequently experienced adverse effects associated with NPP:


Because this steroid has estrogenic properties, it has the potential to cause bloating, higher blood pressure, and the development of male breast tissue.

Aromatase inhibitors are an option for men who want to steer clear of these undesirable side effects.


The possibility of androgenic adverse effects is reduced, but it is not completely eliminated. Acne and hair loss are two examples of the side effects that can be caused by androgens (male pattern baldness). There is always the potential for virilization in females. If a woman experiences virilization symptoms while taking NPP, she should immediately stop taking the medication. For instance, a woman may find that her clitoris grows larger, that her voice becomes deeper, and so on. Other changes may also occur. If any of these side effects start to appear, it is critical to discontinue injections of this steroid as soon as possible.

Female Side Effects

If a woman immediately stops using NPP steroid, there is a significant chance that the virilization symptoms will be reversed. If she continues to use the steroid despite the signs of virilization, there is a chance that the signs will not go away even if she stops using the steroid.


There is a possibility that this steroid will have a detrimental effect on levels of good cholesterol.

Testosterone Inhibition

The production of natural testosterone will be reduced as a result of this hormone. Men who use the steroid should also use an external source of testosterone at the same time.

Nandrolone Phenylpropionate Dosage and Administration

Whether you intend to use NPP primarily for therapeutic or performance enhancement purposes will determine the appropriate dosage that you take of the substance. Males can take a dosage range of 100 mg to 200 mg of this steroid once per week and still experience significant benefits, such as a marked improvement in the rate of recovery and relief from joint discomfort. This is true even when the steroid is used solely for its therapeutic effects.

A dosage of up to 400 mg per week of NPP is recommended for guys who are using it for bodybuilding purposes. This strikes the right balance between maximizing the potential benefits and reducing the potential for adverse effects as much as possible. Those who are less concerned about the potential adverse effects of the drug might think about increasing the dosage a little bit further than 400 milligrams, but for the vast majority of male users, this will be the optimal amount that will produce outstanding results.

Since NPP is not an extremely fast acting steroid, the duration of the cycle should be sufficient to allow the user to experience all of the positive effects that this highly effective compound has to offer. It is recommended to wait up to a year. The recommended schedule for injections is three times per week, with each injection receiving an equal portion of the total weekly dosage. Injections should be spaced out every three weeks to ensure that a consistent level of this steroid is kept in the blood throughout the entire cycle.

It is possible for women to use NPP, but they must be aware of the potential risks of virilization. As a result, the recommended dosage for women should not exceed 50 milligrams per week, and their cycles should not be longer than six weeks.

NPP steroid Vs Deca Durabolin

Deca-Durabolin, one of the most well-known and widely used anabolic steroids, is also a Nandrolone steroid. It is exactly the same as the Nandrolone steroid that is in NPP; the only difference is that it utilizes a different ester. Phenylpropionate is the ester that is utilized in NPP; however, Deca-Durabolin is the brand name for Nandrolone decanoate. After the Nandrolone hormone has been injected into the body, an ester will attach to it, and this attachment will control the manner in which the hormone will be released.

It is possible to make a steroid stack that contains compounds that use the same esters, and this can make it easier to plan your post-cycle therapy after you have finished your cycle. This is possible if you have an understanding of the various esters and how they function. There are other situations in which you might want to combine short and long esters for a variety of reasons. Because Nandrolone is offered in two different ester forms, you have the flexibility to choose the ester that is best for the objectives you have set for yourself.

After the ester has detached, the hormone molecule itself does not undergo any changes. The fact that NPP was formerly sold under the brand name Durabolin provides us with yet another indication of how closely related these two products are.

The question is, what are the differences between NPP and Deca-Durabolin in the real world, and which one is the better choice for you to achieve your objectives?

You get all of the benefits of Nandrolone when you use either compound, which means you get excellent joint relief and therapeutic effects, improved recovery, excellent steady mass gains, significantly increased anabolic function, and little to no androgenic effects in comparison to other steroids.

The half lives of steroid NPP and Deca-Durabolin are very different, and this is the primary difference between the two substances. The half-life of nandrolone decanoate is between six and eight days, which is quite a long time. This indicates that it takes at least a day or two before the substance begins to circulate in the body. This also tells us that it will be present in the bloodstream for well over a week.

This shorter ester of NPP means injections can be given much less frequently, but the drug must be taken for longer periods because it takes so much longer for the effects to become active and beneficial.

Because Nandrolone Phenylpropionate has a half life that is significantly shorter, which is approximately three days, you will have to inject this compound a great deal more frequently in order to keep your blood levels at an optimal level. It is typically administered via injection three times every week.

Both types of nandrolone contain the same active hormone, but if you’re looking for something that will take effect more quickly, your best bet is to go with NPP. If you want to reduce the number of times per week that you inject Nandrolone but still get the benefits of the steroid, Nandrolone decanoate might be the best option for you.

It is possible for women to use NPP, but they must be aware of the potential risks of virilization. As a result, the recommended dosage for women should not exceed 50 milligrams per week, and their cycles should not be longer than six weeks.

Stacking Nandrolone Phenylpropionate

Stacking Nandrolone Phenylpropionate is typically not suggested because it can increase your risk of suffering from adverse side effects. But yes, stacking can also boost the effectiveness of the drug.

At no other point in a cycle may NPP be used with other anabolic steroids; the only exceptions to this rule are bulking and cutting cycles.

When it comes to stacking Nandrolone Phenylpropionate, there are a few different solutions that are not only effective but also simple.

The most popular way to use NPP is in conjunction with the anabolic steroid trenbolone, which produces results that are analogous to those of NPP but does not result in the same degree of hair loss.

When it comes to cutting, it is usual practice to stack NPP with Deca Durabolin or Equipoise. Other successful stacks for bulking include NPP paired with Dianabol or Anadrol 50.

For the objective of gaining mass, NPP can also be combined with testosterone, but doing so is only a good idea if you have a long history of weight training and your testosterone levels are already quite high.

If you are using NPP during PCT (Post Cycle Therapy), stacking it with Clomid or Nolvadex is an additional option for you to consider.

NPP Post Cycle Therapy

Because NPP has the ability to significantly inhibit normal testosterone function, it is essential to engage in post-cycle treatment after participating in a cycle, regardless of whether it was stacked with any other compounds.

By supplying the body with an external source of testosterone after a cycle, post-cycle therapy (PCT) makes it possible to restore healthy levels of the hormone after its production has been inhibited.

Testosterone is essential for preserving muscle mass and preventing fat gain. Post cycle therapy can therefore be considered just as important as the cycle itself, and any errors in your PCT could render your entire steroid cycle fruitless.

The timing of your post-cycle therapy (PCT) will depend not only on NPP but also on any other compounds that you’re using, as well as the half lives of those compounds and the suppressive effects they have. It will take a significant amount of time for testosterone levels to get back to normal levels if you don’t do any PCT, and during that time, severe symptoms of low testosterone will occur, in addition to rising estrogen levels.

The majority of individuals who use NPP will initiate post-cycle therapy anywhere from three to twelve days after the last NPP injection. If you want to avoid symptoms such as low testosterone, fatigue, loss of libido, depression, weight gain, and muscle loss, it is recommended that you begin treatment as soon as possible rather than waiting until later.

The most common and successful post-cycle therapy (PCT) strategy involves combining the drug Nolvadex (tamoxifen) and the fertility drug Clomid. After using these drugs for a period of four weeks, your testosterone levels will return to where they need to be. Dosages will vary depending on the steroid cycle you are on as well as the level of testosterone suppression you are experiencing. The majority of users will begin with a higher dose and then gradually reduce it over the course of the second half of the PCT cycle.

Even though your endurance and strength won’t be at the same level as before, you should continue to train at a relatively high intensity right through your post-cycle therapy (PCT) in order to keep your gains at their maximum level.


Is there no difference between Deca and Nandrolone?

There are a few different variations, or esters, of nandrolone. Some of these products are sold under the brand name Deca, and others are sold under the brand name Deca-Durabolin. When selecting a steroid, it is important to look at the chemical name rather than just the brand name so that you are aware of exactly what you are getting. Brand names can be misleading.

What are the negative effects that come along with taking Nandrolone?

Although it is possible for nandrolone and NPP to come with many of the same side effects that we see with the vast majority of steroids, nandrolone and NPP can be considered one of the milder options. The development of estrogenic side effects like gynecomastia and water retention, mild androgenic effects like acne, and heavy suppression of testosterone are all possible side effects of this medication. Additionally, the levels of good cholesterol in the body can be lowered by this steroid (HDL).

Does Nandrolone cause hair loss?

In comparison to the effects of other, more potent steroids, NPP’s androgenic side effects are relatively mild. It is possible that some men who are genetically predisposed to male pattern baldness will experience some of the symptoms associated with this issue, but it is highly unlikely that this will be a problem for the majority of men who use this steroid.

Is it healthy to take Nandrolone for your joints?

Yes, one of the most significant advantages of using these steroids is that they have a healing and therapeutic effect, which includes the strengthening of bones and cartilage as well as the alleviation of joint pain. Nandrolone is used by certain athletes for the sole purpose of achieving this end goal.

Does Nandrolone raise blood pressure?

When using steroids, failure to properly manage one’s fluid retention can lead to a number of unwanted side effects, one of which is an increase in blood pressure. These estrogenic effects can be caused by nandrolone, but users should have no trouble controlling water retention or bloating with the help of an aromatase inhibitor. This, in turn, will help prevent an increase in blood pressure.


NPP is a versatile steroid that may be used for increasing muscle mass, reducing body fat, as well as for sporting reasons, notably to speed recovery and reduce inflammation in the joints. The purchase of NPP is illegal, just like the purchase of any anabolic steroid that is utilized by sportsmen or bodybuilders.

There is no debate regarding the efficacy of NPP because it is an obvious fact that it does work. However, very few individuals are willing to take the risks involved.

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