Nandrolone Phenylpropionate

Nandrolone Phenylpropionate is an anabolic steroid, often confused with Nandrolone Decanoate. While the two are similar, they are different compounds. Nandrolone Phenylpropionate was he first such compound sold commercially and was introduced in the 1950s. The name it was marketed under was Durabolin and then later Deca Durabolin was introduced.
Nandrolone Phenylpropionate is a small ester based anabolic steroid, and many people refer to it as NPP. Since it is a small ester, it didn’t gain the same popularity as the larger ester version, Nandrolone Decanoate did. However, it is still available and it continues to be used by those who get it from underground labs.
There are many benefits from the use of Nandrolone Phenylpropionate, both for performance and for therapy. It is the common of all anabolic steroids that is prescribed, with the exception of testosterone. This is because of the benefits it delivers, but also due to it being well tolerated by athletes and those using it for medical needs. There are some side effects but the benefits offered can make them worth it.


Nandrolone Phenylpropionate is a 19-nortestosterone anabolic androgenic steroid. This means there is a change to the testosterone hormone in the 19th position. This change allows the compound to be created by adding the short Phenylpropionate ester. It is more anabolic than testosterone. The rating is Nandrolone Phenylpropionate at 125 and testosterone at 100. It is also less androgenic with a rating of 37 compared to 100 for testosterone.
The Nandrolone Phenylpropionate reduces DHN rather than DHT which is why it has lower androgenic activity. It also means it can be tolerated well at higher doses than testosterone. However, both of them aromatize. For Nandrolone Phenylpropionate, it is about 20% of the rate for testosterone. It is important to understand it does have a progestin nature and that plays a role in the possible side effects from using it.


Nandrolone Phenylpropionate is the same as Nandrolone Decanoate in regards to the hormone function. Both of them use the same active hormone, and that is why they are often thought to be the same product. However, Nandrolone Phenylpropionate has the shorter ester and that means it gives a burst when it is injected. It also has a shorter half-life. It has to be injected more often to get the levels in the blood to be stable.
There are positive attributes of all anabolic steroids, and Nandrolone Phenylpropionate is no exception. However, it also exceeds what so many of the other products out there can offer, and that is why it continues to be a go to product in the medical community as well as among athletes. These additional functions include:

  • Increased bone mineral content
  • Increased collagen
  • Increased IGF-1 production
  • Increased nitrogen
  • Increased protein synthesis
  • Increased red blood cells
  • Reduces Glucocorticoids
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It is a myth that Nandrolone Phenylpropionate forces water into the joints to help offer relief. What happens is the additional collagen and bone mineral content in the joints is responsible for such relief.

Nandrolone Phenylpropionate Review

Many regard Nandrolone Phenylpropionate as the most valuable of all anabolic steroids out there, which is a great accomplishment. It is incredible in terms of what it can offer the body both medically and for athletes. Some feel that this steroid has been shortchanged though by the medical community, and not used to its full potential for the needs of patients.
Many athletes will tell you Nandrolone Phenylpropionate is an essential part of their stack for off season planning and strategies. They want to grow their muscle mass and they enjoy the benefits it offers for recovery and healing. There isn’t another anabolic steroid out there that compares in that area.
Males do need to understand the use of Nandrolone Phenylpropionate can result in ED (Erectile Dysfunction). This isn’t listed in the side effects because it isn’t a common ailment. Instead, it can be the result of not using this steroid as it was intended. Make sure you keep your hormone levels balanced and you won’t have to work through the problem of ED when you use Nandrolone Phenylpropionate.

Nandrolone phenylpropionate or nandrolone phenpropionate sold under the brand name Durabolin among others is an androgen and anabolic steroid Nandrolone phenylpropionate, also known as nandrolone phenylpropionate, is a synthetic androgen and anabolic steroid and a nandrolone ester. Nandrolone phenylpropionate, when administered via intramuscular injection, has an active life of approximately 3 to 5 days. Durabolin is almost always sold in its esterified form, either as nandrolone phenylpropionate or as nandrolone decanoate.
Nandrolone phenylpropionate is used for physique- and performance-enhancing purposes by competitive athletes, bodybuilders, and powerlifters. It is a popular steroid for strength and size gains, particularly among users interested in increasing muscle mass and performance without adding much body fat. As it is anabolic, it can also be used to increase muscle mass and performance in hypogonadal men (e.g. in the treatment of HIV AIDS). Nandrolone phenylpropionate is generally stacked with other anabolic agents, such as testosterone, methenolone, or oxandrolone. Nandrolone is also sometimes stacked with non-steroidal agents such as trenbolone or stanozolol.
Nandrolone phenylpropionate is available in injectable form. the injectable is sold as Deca-Durabolin, Durabolin S, and many others. Nandrolone is an androgen and anabolic steroid or an agonist of the androgen receptor (AR). It is structurally related to dihydrotestosterone (DHT), with two of the four methyl groups on the DHT molecule replaced with a phenyl group. As a result of this alteration, nandrolone has diminished androgenic potency relative to DHT. Relative to testosterone (T), nandrolone has a somewhat reduced affinity for androgen receptors but nonetheless has strong androgenic activity. The potency of nandrolone and its derivatives as anabolic agents is considered to be at least equal to that of testosterone and greater than that of DHT.
Like other AAS, nandrolone has been reported to augment levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) in the body. It is inhibitory of testosterone production in the testes, thus reducing levels of this hormone in plasma. This effect may be especially pronounced when the drug is administered along with testosterone, a combination that causes a reduction of testosterone production of up to 70%. Nandrolone may inhibit the enzyme aromatase, which converts androgens into estrogens (via estradiol). As a result, nandrolone may decrease estrogen levels in the body. Nandrolone has also been shown to suppress levels of corticosteroid-binding globulin (CBG), a protein that reduces the activity of glucocorticoids in the body. The pharmacokinetics of nandrolone have been investigated. Nandrolone is metabolized by the body into various inactive metabolites. The elimination half-life of nandrolone is reported to be approximately 6 hours under normal conditions, with about 95% of a dose being excreted within 72 hours of administration.

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Joseph Marks (May 13, 2021): I have been using NPP for about six weeks and I’m already seeing the results. One of my friends said that it may be too soon to expect results, but I can see myself becoming more vascular and stronger overall.
Layne Jones (May 24, 2021): After using Equipoise or Deca Durabolin for three months and experiencing only mild side effects like persistent acne outbreaks, I decided to try NPP. I know this steroid is considered mild compared to the others, but it’s been my experience that they’re all harsh on my system. 
Tyler Kyles (May 29, 2021): I’m a newbie and I’ve been using this for three months now with great results. I was a bit nervous at first because I was afraid of experiencing some of the common side effects I’ve heard about from people who use this type of AAS. So far, I haven’t experienced anything adverse which is awesome! 
Miyagi Haruhi (May 31, 2021): Nandrolone Phenylpropionate is a mild steroid that does not cause any type of water retention. I started using it with Testosterone Propionate and Deca Durabolin, but then I stopped because the side effects were too much for me.
Tara Nelson (June 6, 2021): My doctor recommended that I take NPP along with testosterone suspension instead of taking Equipoise or Deca Durabolin, which are both considered strong AAS. He told me this is the best way to go because it does not cause any water retention, which can be dangerous for my health.
Alistair Campbell (June 14, 2021): I need to boost my overall strength and stamina in the gym, but most of all I need to gain more lean mass without developing too much fat mass. After reading about NPP, I decided to give it a try since it’s considered one of the milder steroids. 
Josh Johnson (June 18, 2021): My doctor is an old-school guy and he told me that once I’m ready for a precontest phase, Nandrolone Phenylpropionate would be the perfect steroid. He said it will burn fat very quickly while increasing my muscle mass at the same time. 
Samuel Martinez (June 19, 2021): I was prescribed this by my doctor because he said it would help me build muscle mass without causing too much water retention or making me fat. He told me that if I continue to eat well and exercise, then the Nandrolone Phenylpropionate will really work its magic.
Carlos Lopez (July 3, 2021): I decided to stop taking Equipoise and Deca Durabolin for personal reasons. Although they’re not the steroids that give the worst side effects, I just found myself asking what would happen if I took Nandrolone Phenylpropionate instead. My doctor said it should work well because it’s milder than the two I was taking.
Steve Bell (July 12, 2021): I started using Nandrolone Phenylpropionate a month ago and this has been the only steroid that I’ve used consistently. It does not cause water retention or any type of other adverse side effects which is why it’s becoming very popular among bodybuilders. 

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Frequently Asked Questions about Nandrolone Phenylpropionate

Is NPP a steroid?

Yes, Nandrolone Phenylpropionate is one of the most popular types of anabolic steroids in the world. 

Is it safe to use NPP with Testosterone Propionate for six weeks?

Yes, but if you are a beginner then these two should not be used together. You should always use one first, then the other. 

Summary and conclusion

In conclusion, NPP is a very popular steroid among bodybuilders for several reasons. It does not cause any water retention or fat gain, which is why it is commonly used in cutting cycles. In addition, NPP boosts overall testosterone production and increases muscle mass without disrupting prolactin levels too much.