There are lots of things that bodybuilders might consider before they start a cycle. It’s common to focus on getting the right dose and making sure that the drug will be effective. But this can mean that other important details get overlooked. In particular, they fail to ask how long do anabolic steroids stay in your system.

To make things more complex, each anabolic steroid has a slightly different half-life. This determines the most effective way for you to use them. Plus, it will determine your risk of getting caught on a drug test. Here is your basic guide to anabolic steroid half-lives.

What Does Half-Life Mean?

Let’s start by talking about what the term half-life means. This can become a source of confusion. The half-life isn’t the amount of time it takes for the drugs to completely leave your system. Rather, it refers to the amount of time it takes for half of the steroid to pass through your system.

Drugs tend to be measured in half-lives, rather than full-life. I know that this can seem confusing at first glance. But there is a good reason for it. It allows doctors to decide when to provide the next dose. This is usually done around the end of the half-life period. It’ll ensure that the amount of drugs in your system is kept consistent.

Half-Lives Of Popular Steroids And Supplements

There are plenty of supplements and steroids that bodybuilders dabble with. Below is a list of some estimated half-lives for the most popular ones:

Steroid/Supplement Estimated Half-Life Detection Time
Anadrol Under 16 hours 8 weeks
Anavar 8 to 12 hours 3 weeks
Deca Durabolin 14 to 16 days 18 months
Dianabol (Injectable) 60 to 72 hours 6 weeks
Dianabol (Tablet) 6 to 8 hours 5 weeks
Equipoise 7 to 9 days Between 4 to 5 weeks
Halotestin 6 to 8 hours 8 weeks
Masteron (enanthate) 8 days 12 weeks
Masteron (propionate) 2 to 3 days 3 weeks
Primobolan 4 to 6 hours Between 4 to 5 weeks
Trenbolone 2 to 3 days 5 months
Winstrol (Injectable) 48 hours 9 weeks
Winstrol (Tablets) 8 hours 3 weeks
Testosterone Acetate 48 hours 5 months
Testosterone Cypionate 16 days 12 weeks
Testosterone Enanthate 8 days 5 months
Testosterone Propionate 72 hours 3 weeks
Testosterone Suspension 24 hours Around 1 to 2 days
Clenbuterol Can vary, but expect it to linger for 68 hours 4 to 6 days
Clomid 8 to 12 hours 8 weeks
Arimidex 4 to 6 hours 2 weeks
Nolvadex Under 24 hours 8 weeks
HCG 64 hours 7 to 10 days
Peptides Varies a little, usually between 10 minutes to two hours Between 1 to 3 months, depending on the peptide


If you don’t see a steroid or supplement you’re taking on the list, don’t fret. Most of the time it’s fairly easy to determine the half-life with a few Google searches.

Estimating the detection time is more art than science. But there are thousands of bodybuilders around the world who have posted about their experiences with drug tests. Based on this, we can get a rough idea of the detection period for some popular drugs. But there is one gigantic caveat. These are based on urine tests. Other types of tests are more sensitive, boosting the chances that you’ll get caught.

What Impacts The Half-Life Of Steroids?

It should be noted that these numbers aren’t set in stone. They are just rough estimates. There are lots of factors that affect how rapidly the drugs will break down in your body. These are usually put into two groups. First, you need to consider the effect your body is having on the drug. For example, your age, diet, and exercise regime.

Some elements are specific to the anabolic steroid. For example, which form of the drug you are taking. Injectable drugs tend to stick around longer than their oral counterparts. Furthermore, the half-life can be impacted by other drugs you have in your system. Bodybuilders should keep this in mind when they are stacking multiple anabolic steroids. The more drugs you combine, the harder it will be to predict the effects.

Why Knowing The Half-Life Of Anabolic Steroids Is Important

Before you take any anabolic steroid, you should do some basic research. Part of this involves knowing how long the half-life period will be. There are a few reasons why this information is so important. First, it will determine your risk of getting caught on a drug test. We’ll talk more about that a little later.

It will also help you use the drug more effectively. Knowing the half-life will let you plan when to take your next dose. For example, you should dose Anavar every eight hours. This will keep the amount of drugs in your system relatively consistent. For longer-lasting drugs, like Trenbolone, you might only need to take a dose once every two days.

There are two reasons why you need to know the right time to take your next dose. First, it will ensure that bodybuilders are going to get the strong results they crave. But it will also help manage the negative side effects. This is especially important when taking anabolic steroids, which are known for wreaking havoc on your body.

Short Half-Life Vs Long Half-Life

Knowing how long do anabolic steroids stay in your system won’t tell you how effective the drug is. That all depends on the type of anabolic steroid you are taking. Just be aware that most anabolic steroids come with a vicious trade-off. The more effective they are, the worse the side effects will become.

Instead, the half-life of the drug will refer to how often you need to take a dose. This can make anabolic steroids with a shorter half-life a little annoying. You might need to take one dose in the morning and a second dose at night. Every day of the cycle. But this trade-off might be worth it. Drugs with longer half-lives will have long-lasting effects. This can be a problem if you find that the drugs cause unwanted side effects, as it might be days before it wears off.

There is another factor to consider. Drugs with shorter half-lives tend to carry a higher risk of addiction. This is a particular risk for anabolic steroids. Studies have found that 32 percent of users become addicted to these bodybuilding drugs, often due to issues related to their low self-esteem. However, addiction to these drugs can cause major issues. Your body starts to build a resistance to the steroids, requiring larger doses to get the same effects. The higher the dose, the more severe the side effects become. Worse, drug dependence can take a toll on your relationships. People who are addicted can lose control of their emotions when they try to quit, causing them to lash out at loved ones.

What Is The Detection Time For Steroids

Just because the half-life period is over, doesn’t mean that the traces of the drug have left your system. It will still show up on a test. This is bad news for bodybuilders, as getting caught using drugs can have severe penalties. Most anabolic steroids are illegal without a prescription, which is only issued in limited medical circumstances. Should the police catch you with the drug, they will issue fines. Depending on the quantities involved, you might even be facing criminal charges.

Getting by bodybuilding competitions isn’t much better. Expect to be instantly banned from competition. Sometimes, you can be stripped of past wins. Worst of all, though, your reputation will forever be tarnished. This raises an important question, how long do anabolic steroids stay in your system?

This is hard to estimate. It’s not simply a matter of doubling the half-life. Even after this period, there might still be remnants of the drug lingering in your bloodstream. Drug tests will pick up on this. Here are some of the factors that determine whether anabolic steroids will be detected.

  • Type of drug test. This is a big one. Most of the time, you’ll have to do a urine test. This is good. These tests are less sensitive. As long as it’s been a few weeks since you finished the cycle you should be safe. But other tests are more sensitive. For example, blood tests and hair tests can pick up steroid traces months after you have finished using the drugs.
  • Type of steroid you are using. Each anabolic steroid has a different marker. Some signals are harder for testers to find than others. For example, some are harder to find in urine but will show up clearly in blood tests and vice versa. It’s also important to consider how quickly the drugs metabolize, transforming into a usable form. Trenbolone is notoriously slow at this. That’s why it shows up clearly in urine tests. It can take months to make its way through your body.
  • Let’s get the obvious out of the way first. The higher the dose, the longer the drug will stay in your system. But there’s something else to consider. Anabolic steroids take a massive toll on your body. The higher the dose the more stress you put your body under. This slows down your body’s ability to process the drugs.
  • How you take the drug. Anabolic steroids are split into two varieties. Those you take as a tablet and those that you need to inject. Oral tablets hit your bloodstream faster. This gives them a shorter half-life. As a result, they’ll pass through your system quicker, with a lower chance of being detected on a drug test.

Tips To Pass A Drug Test

So far, this information has all been interesting. But there’s one important reason why you might be asking how long do anabolic steroids stay in your system. Likely, you’re facing a drug test and wondering if you can pass.

Your odds depend on the type of steroid you took and how long ago the cycle ended. But let’s assume that it’s fairly recent. Here are some techniques that might be able to get you out of trouble.

Replacing The Urine

Let’s be clear, this method is unappealing, to say the least. However, today’s tests are very sophisticated. This is likely your only chance to beat the system.

There are a few ways you can do this. You might be able to purchase fake urine online. Simply prepare this concoction and pop it into the sample cup. There’s just one problem. Testers are smarter than this. They can spot fake piss and they will flag the test. If you get caught faking a test, your employer will probably assume that you are guilty.

That’s why you need to take the more uncomfortable step of asking a friend to provide the urine test for you. The gross part is that you’ll need to carry this sample with you into the room. Plus, it only works if you are left alone to prepare the sample. These days, examiners want to be with you, making it difficult to use this method to beat the drug test.

Taking Drug Concealer

You can get agents that are designed to mask drugs. This can make them harder to detect. But it isn’t a sure-fire bet. If you took the anabolic steroids recently, they will still show up in the results. However, of all the available options, this is probably your best shot.

Don’t Take Anabolic Steroids

If you are concerned about drug tests, your best bet is to not take anything illegal. Sounds obvious right? The good news is that you don’t need to forgo the powerful effects of anabolic steroids. Crazy Mass has products that replicate steroids. But they are made from natural ingredients. That means you don’t need to worry about nasty side effects and nothing untoward will appear on a drug test.


Since they are illegal, you’ll need to conceal your anabolic steroid use. Some people have gone to great lengths to do this. Even using someone else’s pee to fake the urine test. Staring down this disgusting prospect is too much for me. I’d prefer to use a safe, legal alternative.