How Long Do SARMs Stay In Your System?

The question ‘how long do SARMs stay in your system’ is a very important one, for numerous reasons.

First of all, you want to make sure that SARMs are out of your system before you start imbuing any other compounds, as failing to do so could lead to adverse drug reactions.

Secondly, knowing when SARMs are out of your system helps you better understand the changes your body undergoes. 

Lastly, if you have an upcoming drug test, you want to ensure that the drug is out of your system and that it won’t appear on the test.

The latter is probably the reason why you’re asking ‘how long do SARMs stay in your system’ in the first place and that’s completely fine.

Factors Influencing How Long SARMs Stay in Your System

Most studies that have been performed on SARMs and their duration in the body don’t reveal important information, such as the weight of the participant, metabolic rate, genetic make-up, amount of SARMs imbued… 

That’s why it’s important to understand the following; when a study claims that Ostarine metabolites can be detected in urine for up to nine days, that might not necessarily be true for you.

Let’s go through each factor and explain how it influences the duration of SARMs in your system.


The more you weigh, the less time it will take for a SARM to leave your body. 

Conversely, the less you weigh, the more time it will take the SARM to be expelled from your system.

A 205-pound male bodybuilder and a 135-pound female taking the same amount of Ostarine would have vastly different outcomes when it comes to the duration of SARM metabolites in their system.

Metabolic Rate

This is also a very important factor which is often overlooked. Your metabolic rate determines how quickly your body expels chemicals from your system, including SARMs.

Metabolism is affected by your age, gender, level of physical activity and hormones.

If you have a fast metabolic rate, you will be able to rid yourself of SARMs a lot quicker compared to someone that has a slower metabolism.


Something you can’t really influence in any way. If you’re born under a lucky star, your genetic make-up will allow you to quickly expel SARMs from your system.

If not, you’re resigned to fate.

Dosage Imbued

At 100mgs per day, RAD 140 has shown itself to have a half-life of 60 hours. Would the results be the same if only 10mgs of RAD 140 per day were imbued?

They wouldn’t, and that’s why you have to pay careful attention to how much of a SARM you’re imbuing.

The more you take, the longer the SARM in question will station itself in your body.

Some people mistakenly believe that the half-life of a compound determines how long it will stay in your system. That’s not true because of metabolites, small traces of the compound that remain visible even after the compound is expelled from your system.

If you’re interested in how to calculate the amount of time it takes to expel a compound from your body (but not its metabolites), read this small section of my article.

SARMs In Your System

Now it’s time to go through each SARM and see what either science and/or anecdotal reports have to say about how long SARMs stay in your system. 

We’ll also be including Cardarine, Ibutamoren and Stenabolic since they are commonly associated with SARMs.


As previously mentioned, a study has shown that Ostarine metabolites can be detected in urine for up to nine days after last consumption.

Anecdotal evidence also points to the fact that around ten days is the optimal time window for Ostarine to get out of our system.

Interested in the half-life of this SARM and much more? Check out my Ostarine review.


In a study conducted on the metabolism of Ligandrol in humans, it was determined that this SARM could be detected for up to 22 days in urine.

This is substantially longer than Ostarine, despite the fact that Ostarine and Ligandrol share a similar half-life.

Anecdotal reports tell us that we should let at least 30 days pass for the drug to be completely gone from our system.

Learn more about this SARM by reading my Ligandrol review.

RAD 140

Research conducted at the Antidoping center of Moscow revealed that RAD 140 could be detected in urine for up to eight days when administering just a SINGLE dosage of 10mgs.

Nobody knows what the exact figures are for bodybuilders that take it for eight weeks, but anecdotal evidence points to the fact that it could be up to three weeks.

Since higher dosages taken by bodybuilders would equate to an even longer detection window, it’s unclear how long RAD 140 stays in your system.

If you want to read more about this SARM, be sure to check out my RAD 140 review.


There is a lot of conflicting information on the half-life of Andarine, not to mention how long it stays in your system. 

There are no published clinical studies about the longevity of Andarine’s metabolites in the human body since research on humans was discontinued in the early stages.

Andarine Molecule

Anecdotal reports say that two weeks is the maximum amount of time Andarine can be detected in urine, although I haven’t seen anyone confirm these findings.

All in all, be careful when you’re imbuing this SARM and make sure to read my Andarine review for more information.


A study performed on the in vivo metabolism of YK11 found out that while unconjugated metabolites in urine disappeared within the first 24 hours, other metabolites remained traceable for 48 hours or longer.

The paper doesn’t reveal how long, but it’s at least 48 hours or more.

Anecdotal evidence claims that YK11 is out of your system in about a week or two.

I would err on the side of caution and let at least fourteen days pass before considering myself in the clear.

Learn more about this potent SARM in my YK11 review.


S23 failed to undergo any human studies and we therefore don’t have any scientific data on how long it stays in your system.

It’s important to note that even anecdotal reports are scarce since not many people have taken S23.

Therefore, I cannot tell you with conviction how long S23 stays in your system.

If I had to estimate, I would say about 15 to 20 days from your last dosage, that’s a safe bet and should be enough time to expel all the metabolites from your body.

Interested in learning more about the strongest SARM around? Check out my S23 review.


You have to be really careful if you’re about to be tested for MK-677. 

A study performed in the Manfred Donike Workshop revealed that just 10mgs of Ibutamoren administered once was traceable two weeks after administration. And not just one metabolite, but multiple traces of Ibutamoren ‘abuse’ were found.

This means that you need to wait at least a month before your body completely rids itself of Ibutamoren.

Also, the USADA claims to be able to monitor MK-677 misuse through blood tests, so I would be very careful.

Read my MK-677 review for more information on the compound.


Research on the detection of Cardarine metabolites in human urine have revealed that this compound can be traced for up to 40 days.

Cardarine was pitted against GW0742, a similar compound, and the end results showed that Cardarine had ten times more metabolites in urine, when compared to GW0742.

This means that GW0742 is the better compound, at least when detection windows are concerned.

Read more about Cardarine in my Cardarine review.


There isn’t much data available on the metabolites and their detection window when SR9009 is concerned, but one study performed in 2016 does mention that unless LC-MS is utilized, neither SR9009 or SR9011 metabolites can be traced in urine.

This was more than five years ago, and testing methods have surely improved by now, but it gives us an interesting glimpse of the past. 

Since no other information is available, we have to guess what the actual detection window of Stenabolic is; I estimate it to be around two to three weeks. 

I present a lot more information on Stenabolic in my SR9009 review.


This article gave a lengthy answer to the question ‘how long do SARMs stay in your system’.

Most SARMs and compounds related to SARMs can be traced for around two to three weeks, while some, like Cardarine, take up to 40 days to completely disappear from your body.

Be sure to check the exact numbers by scrolling up to the desired compound.

I hope that you’ve learned something new and that you will put your newfound knowledge to good use!

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