Decanoate vs. Phenylpropionate: Types of Nandrolone and Side Effects

Decanoate vs. Phenylpropionate: Types of Nandrolone and Side Effects

5 min read

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14 May 2024

One of the most popular steroids among bodybuilders looking to size up is an androgen ester called Nandrolone. But little do these guys (and girls) realize what long-term ramifications await their bodies.

This article will explain what exactly Nandrolone is and what side effects you can expect from it.

First off, a little background info about esters

Esters are chemical compounds that can be manipulated to create slightly different versions of the same androgenic base. Case in point: Nandrolone. Depending on where the ester is attached, you’ll get two forms of Nandrolone: NPP (Nandrolone phenylpropionate or Deca (Nandrolone Decanoate).

Let’s take a look at the difference between NPP and Deca, the serious side effects associated with both, and a natural way to get big fast.

NPP (Nandrolone Phenylpropionate) vs Deca (Nandrolone Decanoate)

NPP and Deca provide the same benefits of impressive gains in muscle size and strength while recovering more efficiently post-workout. However, there is a difference in how long it will take to start seeing those results depending on which one you use.

Nandrolone is a steroid ester. Wondering how it can be changed slightly to produce different results? Well, in this case, it’s all about the length of the ester chain. NPP is a short-chain ester while Deca is a long-chain ester. The shorter the ester, the more potent it is, and the faster you’ll see results. On average, users of NPP will see size gains within a couple of months, while those taking Deca will have to wait for an extra month or so.

The side effects of Nandrolone


A few months and you’ll be in Swole City. Sounds great, right? Well, maybe not so much. No matter which Nandrolone ester you choose, your body’s in for some trouble. Here are the most common Nandrolone side effects.

1 Severe insomnia

One of the most common user-reported side effects of using Nandrolone is insomnia, or the inability to get healthy sleep. This might have something to do with the temporary increase in your testosterone levels.

Anabolic supplements are well known for causing sleep disturbance. And if you’re not sleeping well, you won’t be able to recover well either, as muscle-repairing growth hormone is released in its greatest quantity while you’re in a deep sleep cycle.

2 Man boobs (moobs)

Anabolic compounds are famous for causing feminization side effects, especially man boobs. Why?

Well when you synthetically increase your testosterone levels, your body will want to compensate and balance things out with estrogen. While you’re on a cycle, the anabolic and androgenic effects keep estrogen down. As soon as you stop, estrogen shoots up. To make matters worse, your natural testosterone production will be suppressed from the drugs you were using. The result? Man boobs.

While Nandrolone isn’t as extreme as other anabolics when it comes to aromatization (estrogen production), there’s still a risk – especially if you’re predisposed to hormone sensitivity.

3 Heart trouble

Common sense would tell you not to overdo it with anything: junk food, Netflix, and especially anabolic supplements. Still, guys and girls looking for muscle glory always like to push the boundaries, and they wind up paying the price with their health.

Avoiding an overdose of Nandrolone is not as simple as following an ingredient label, as varying dosages will have different effects on individuals.

Nandrolone has been shown to cause cardiotoxic effects when too much is used. This spells bad news for your cardiovascular system, especially your heart – or that thing that keeps you alive.

5 Decreased testosterone levels

Nandrolone has been shown to effectively increase testosterone levels, but what happens when you stop taking it? A big drop, that’s what.

Studies show that while Nandrolone may be a potent way to increase anabolism in the body, it’s also one of the most aggressive testosterone-suppressing steroids on the market. After only four days of using Nandrolone, subjects experienced a significant reduction in their natural levels of total testosterone and bioavailable testosterone.

6 Vital organ failure

Think it’s a coincidence that well-known steroid-using bodybuilders receive an organ transplant in their 40s? If you’re using Nandrolone, you might be in for much of the same.

Studies show that when Deca (nandrolone decanoate) is introduced into the body, your organs take one hell of a beating.

Researchers split up three groups of animals: Group A received no Deca, Group B received some, and Group C received a lot. They confirmed damage to the liver, heart, and kidneys in both Group B and C. And not surprisingly, the more they used, the worse the damage. Give your body a break. Skip on Nandrolone.

Get big naturally with Deca-Max

Why put your body at long-term risk for short-term benefits? You want to size up – we get that. But doing so at the expense of your health just isn’t worth it. Lucky for you, there’s a safer way to naturally bulk up.

If you want an extra boost to pack on muscle, try Deca-Max out for size. This supplement contains all-natural ingredients that have been hand-selected for their benefits. The Deca-Max formula safely mimics the bulking effects of anabolic steroids without the side effects listed above.

Deca-Max will help you bulk up in three key ways:

  1. First, it helps to increase the amount of available nitrogen in your body. Nitrogen is a key compound for muscle protein. Ingredients found in Deca-Max such as L-Arginine Alpha-Ketoglutarate have been shown in scientific studies to effectively increase the amount of usable nitric oxide in the body.
  2. Second, you’ll be working a hell of a lot harder. Deca-Max contains oxygen-supporting ingredients such as ginseng, which has been shown to increase oxygen utilization during workouts. The takeaway? Better performance during your toughest workouts.
  3. Finally, Deca-Max contains Tribulus Terrestris, a well-known testosterone-supporting ingredient. Studies also show that Tribulus Terrestris can increase nitric oxide levels, which is great news for muscle growth.

Deca-Max is available with free worldwide shipping, plus the feedback is pretty impressive to read through. It’s an effective way to achieve Arnold-size status without risking your health.

Have you tried Deca-Max yet? Let us know what you think about it in the comments below.

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