S23 SARM Dosage | Safest, Best Cutting And Bulking Dosages

In this article, we will go over: 

  • The safest S23 dosage
  • The best dosage for a bulk
  • S23 dosages used in human trials

You have to be really careful when measuring your S23 dosage, as this compound is by far the strongest SARM on the market. 

It is comparable to steroids and is the only SARM, alongside with YK11, where PCT is absolutely necessary, no matter what dosage you imbue.

Bodybuilders usually take between 10 to 30 mgs of S23 per day, which I believe to be a bit too much, especially considering the side effects of the compound, an example being the heavy Testosterone suppression experienced.

In this article, I will be revealing the best S23 SARM dosage for both a bulk and cut, I will also show you what I believe to be the safest dosage and much more!

S23 Summary

S23 is the most potent SARM available, with preclinical studies showing that rats who have imbued this compound all remained infertile during the entire duration of the trial.

This effect led scientists to research the potential of S23 to be used as male birth control, since it lowers sperm count with such a high success rate.

What is really interesting about S23 is that the more you take, the less effective it becomes in being a contraceptive, with research showing rats who were injected with the highest dosages of S23 having a similar sperm count to regular rats.

S23 is a very good muscle builder, it also significantly boosts strength in the end user. 

Other than that, you can also expect to lose fat while on it.

Interested in learning more about this SARM? Check out my in-depth S23 review.

S23 Half-Life

One of the problems we face when trying to determine the half-life of S23 in humans is the lack of research done on human subjects. To not mince words, S23 is still in the preclinical stages of development, meaning there are no human studies available. 

However, studies on rats have revealed the half-life of S23 to be 12 hours.

While this doesn’t necessarily translate into humans, anecdotal reports claim that taking it twice a day, once in the morning and once in the afternoon, produces the most optimal results in bodybuilders.

I think that splitting your S23 SARM dosage into two equal parts is the right thing to do, as you keep blood concentration levels of the drug high throughout the day.

S23 Bulking Dosage + Example Cycle

It’s not advised to mix S23 with any other SARMs or compounds, since it’s strong enough on its own and will produce the desired effects without any outside help.

Adding another SARM to the fray would only potentiate the risk of heavy Testosterone suppression and other side effects.

While on a bulk, S23 helps form new muscle mass, increases strength helping you achieve new heights while lifting, aids in fat loss and much more!

Example of a bulking cycle:





10mgs per day




50mgs of Clomid per day



25mgs of Clomid per day

As we can see, PCT is absolutely necessary and we’re using Clomid for the task, which is a bit stronger than Nolvadex, but it does the job better.

Provided you follow the table above, you will successfully recover from S23 in a month and you’ll keep all of your accrued gains!

S23 Cutting Dosage + Example Cycle

While cutting with S23, you can expect to lose a substantial amount of fat and weight and also gain some lean muscle mass. 

The fact that you won’t lose any of your previous muscle goes without saying and as mentioned in the sentence above, you can even expect to put on a few pounds of muscle.





5mgs per day




25mgs of Clomid per day

We’re only imbuing 5mgs of S23 per day as you don’t need more during a cut. Taking 10mgs or more only puts you at risk for adverse effects, so it’s best to just remain at a comfortable 5mg dosage.

No PCT S23 SARM Dosage?

If you have been reading my blog for some time now, you would have noticed how leery I am when it comes to recommending PCT.

I personally don’t like taking it and do my best to avoid it when it can be avoided.

With S23, you can’t dodge the oncoming boulder, you have to face it head on and hope for the best.

While PCT is not without its own side effects, I would much rather deal with a couple of headaches and an upset stomach than something gruesome like gynecomastia.

To not turn this into an essay, basically, you have to take PCT after imbuing S23.

Don’t even try to avoid, delay or postpone it anyway, as you will only be harming yourself.

Decreasing your S23 SARM dosage to miniscule levels does nothing, as S23 has been shown to be quite suppressive even in lower dosages.

Safest S23 SARM Dosage

Since there are no human trials on S23, we have to rely on anecdotal reports when it comes to the safest S23 SARM dosage.

Let me just make one thing clear, you will experience side effects on S23, no matter what dosage you take, so be prepared for that.

To minimize the onset of adverse effects, I recommend a dosage of 5mgs per day.

At that dosage, you might experience a small spike in aggression, a bit of Testosterone suppression, as well as some sweating during the night, but other than that, you should be fine.

Taking less than 5mgs a day beats the point of consuming S23, as not enough of it will be present in the body for you to really notice a difference.

What S23 SARM Dosage Should I Take

If you’re still a fledgling to the compound, more than 5mgs a day could be disastrous, as you don’t know how your body reacts to S23 in the first place.

Before even considering the consumption of S23, ensure that you have at least done a few cycles with other SARMs.

Once you think you’re ready, start off with 5mgs a day and watch how your body reacts. Some people are more susceptible to side effects than others, and I have had cases where I would see the subject get suppressed on week two with just a 5mg dosage.

While this might not be the norm, I still urge you to tread caution, especially during your first cycle with S23.

Once you’ve done a few cycles with S23, and if you deem yourself to be physiologically and psychologically fine, you may increase the dosage to 10mgs a day.

In my experience, the most gains I’ve had stem from the 10mgs a day dosage, which is only natural considering the fact that S23 increases muscle mass in a dose-dependent manner.

All in all, take 5mgs a day if you’re still a newbie, and double it up to 10mgs a day once you gain some experience. 

Don’t go over 10mgs a day and you should be golden!


No other SARM out there will build muscle mass like S23. You’re going to be mesmerized with the results and believe me, the few side effects this compound has are worth enduring.

People taking over 10mgs a day are really skating on thin ice, and they should ask themselves whether the few extra pounds of muscle are worth their sanity.

To keep it safe for everyone, ensure that you follow my recommended guidelines and practices.

Last but not least, I have to mention that there have been some reports of bunk SARMs in the last few weeks.

Don’t run the risk of being a sucker, get your S23 from one of my vetted vendors!

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