Valkyrie Deca-Rapid 100mg/ml

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100mg/ml Nandrolone PhenylPropionate

Nandrolone Phenylpropionate (NPP Steroid): Short Guide

If you're relatively new to the use of these types of chemicals, you may be unfamiliar with the NPP steroid. This is because this product often gets less mention or use in many aesthetic or athletic circles.


This is especially true when comparing it to the far more sought after, and included, Deca drug, which is a slightly modified form of this item, but is one of the more renowned inclusions in the above populations.


Nandrolone Phenylpropionate separates itself from its often more utilised counterpart only with the change of its chemical delivery agent.


The phenylpropionate attachment made to this product is a relatively quicker releasing agent, with a half-life of 4 to 5 days, than the decanoate attachment, which is possessed by the formerly mentioned chemical, and has a half-life of around 15 days.


This means that the NPP steroid can exert its impact on the body far quicker, and in a sharper fashion, than its more gradual counterpart.


In terms of exactly how it exerts this impact, the basic structure of this product is the same. Namely, it has a carbon atom removed from the 19th point of the structure.


This skews its potency slightly upward, while skewing the androgenicity downward for a more tolerable product.


The NPP steroid then exerts its perks, and potential drawbacks, through combining with androgen receptors to cause a change in cellular signalling that leads to the range of impacts discussed below.

Nandrolone Phenylpropionate Uses

Because of the quicker processing of the product, this changes the primary Nandrolone Phenylpropionate injection uses.


While its chemical cousin has been reported as a regular inclusion in periods of use where the overall objective is to accrue as much size as possible, or to accelerate the rate of mass accretion or force output capacity, this form could be used differently.


Although it could be used for the same goal, the quicker processing means that it may be particularly useful during periods where the aim is to preserve as much lean tissue as possible, as well as its associated fitness perks, while dropping overall size.

This is also the period of use, and the reason, why many would also buy testosterone propionate, which has a very similar release rate and, hence, would exert its impact in tandem with this product when used together, as may often be the case.

Nandrolone Phenylpropionate Cycle

As mentioned above, a common NPP steroid cycle is one where the overall aim is to reduce mass while maintaining elements such as speed and force production, as well as keeping as much lean tissue preserved as possible, or one where the goal is the very gradual accrual of lean tissue.


Because of this, a Nandrolone Phenylpropionate cycle is usually relatively briefer than phases where size accrual is the objective.

This phase generally lasts from 4 to 12 weeks and can often contain other items. For example, many people will also buy Trenbolone Acetate in an effort to further augment the outcome of the regimen.


Now that the period and structure of the use of Nandrolone Phenylpropionate has been looked at, we can examine the perks, and the potentially unwanted events, associated with its use below.

Dosages For Beginners and Advanced Users

As with any of these types of drugs, the NPP steroid dosage will vary according to a number of different factors.


These would include:


  • Gender - while males have been documented as tolerating relatively high amounts of these items, females are far more sensitive to some of the associated unwanted events that are reviewed below;
  • Previous use of similar products - the previous experience of these drugs have lasting impact on the body. Specifically, the growth of more androgen receptors in the cells. They are also far closer to their genetic potential for adaptation to training than newcomers to the use of these chemicals.


The above considerations lay the foundation and help explain the Nandrolone Phenylpropionate doses that are often be reported.


For instance, the average amount of this chemical that is often taken for recreational or athletic purposes stands at approximately 300 milligrams, taken roughly once weekly. This should supply satisfactory outcomes for most newcomers and even some of the intermediate users who are repeating the practice.


However, more experienced users who purchase steroids may need to raise this amount to keep furthering progress due to the adaptations that were mentioned above. 


Meanwhile, for the reasons listed above and below, female users are better served with a fraction of the dose, with a weekly 50 milligram dose being commonly used for athletic or recreational purposes.


Now that the main perks, the underlying mechanisms, and amount of this drug that can be administered, have all been reviewed, we can take a look at some potentially unwanted events that can occur with regular use of these items.

NPP Side Effects

As mentioned above, while there are clear perks to the use of these items, there are also some significant Nandrolone Phenylpropionate side effects that need to be mentioned so as to give you a clear picture of this chemical can impact you.


These unwelcome occurrences can include:


  • Heart-related issues - these can involve a blood profile that puts the user at  higher chance of a cardiac event, a reduced level of blood vessel flexibility, higher blood pressure, and a larger heart size;
  • A higher degree of water holding and the development of surplus tissue surrounding the breast -  these are all events mediated by the partial processing of this chemical into estrogen, and it may impact aesthetic or weight;
  • Skin issues - this can involve oily skin and increased bouts of acne;
  • A virilising impact on female users - this is the primary reason as to the lower dose elicited by females, and includes a hoarser voice, through an enlarged larynx, accelerated hair growth, and a change in facial features, as well as clitoral enlargement;
  • The reduction of the endogenous manufacturing of similar chemicals in the body - this may necessitate the use of exogenous testosterone supplementation to ensure no issues arise from deficiencies of the chemical in the body.

If you are familiar with the alternative form of this chemical, you may notice how the NPP side effects compared to deca durabolin are very similar.


You may also then be aware that there are certain steps that can be taken to further minimise the chance of the above events from happening, outside of lowering dosage and shortening periods of use and the amount of combined chemicals used.


These include the use of certain ancillary agents, such as an aromatase blocker, or receptor blockers, that can help prevent or lessen the impacts seen above and allow you a more tolerable experience.


Through examining all of the impacts that the use of these items can elicit, as well as certain preferable purposes and common usages of the products, you can then make the best decision for you on which items to take, and how to take them, and focus solely on your training and nutrition and making further progress toward your aesthetic or fitness-based goals.

Package 1 vial (10 ml/vial)
Manufacturer Valkyrie Pharmaceutical
Substance Nandrolone Phenylpropionate 100 mg/ml
Common name Durabolin

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