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February 2016
Sarms: how they work

SR-9009 (Stenabolic) And GW-501516 (Cardarine) aren’t SARMs either. The main reason why people think they are is because of how vendors market them. Usually, you’ll see suppliers just sell them as a SARM because its easier.

Let me tell you what they actually are.

Cardarine is a PPAR agonist, which means it is able to boost metabolism and endurance. GW-501516 is often used by athletes to help increase physical performance and to help burn fat. It’s actually one of the strongest endurance boosters currently available.

Stenabolic is a Rev-Erba agonist, which is also known for having a huge impact on cardiovascular performance and metabolism. You will often see researchers stack Cardarine with Stenabolic in order to optimize endurance and burn an insane amount of fat.

Now that’s been cleared up let’s move onto the compounds that actually are considered to be SARMs.

Let’s start off with MK-677 (Ibutamoren) which in my opinion is one of the most effective SARM available. It is a very mild compound but has the ability to change a physique.

You will experience no suppression with Ostarine at a low dosage of 20 to 30mg a day. It is mainly used for both cutting and bulking.

In a caloric deficit, it will really shine as it will make you hold onto your lean muscle mass and strength.

RAD-140 (Testolone) is one of the strongest SARMs available. It’s referred to as Testolone because the strength of this compound is comparable to Testosterone. Even a dosage as low as 10mg is known to take a physique to the next level.

With RAD140 you can expect serious lean muscle and strength gains.

RAD140 has excellent pharmacokinetics and is a potent anabolic in nonhuman primates as well. We believe the overall preclinical profile of RAD140 is very good, and the compound has completed preclinical toxicology in both rats and monkeys.

Another great SARM for gaining lean muscle mass is LGD-4033 (Ligandrol). It’s also one of the more popular SARMs. LGD-4033 is great for bulking and putting on size.

Most users don’t experience any suppression or side effects with this particular compound. It will help you put on size and strength within a short period of time.

YK-11 is a rather new SARM which has shown to be extremely strong. Multiple studies have shown that YK11 is as strong as Dihydrotestosterone (DHT). It’s also mainly used to pack on muscle mass or can even be used for a recomp.

Andarine (S4) can be effectively used for both cutting, bulking and recomping. It’s also a very powerful compound and even in a caloric deficit, you can expect to gain muscle mass and strength.

Often users stack SARMs such as Andarine with MK-2866 (Ostarine) in order to get the best results.

One SARM that you probably don’t know is ACP-105. It’s not really that popular because there isn’t a lot of information available on this compound. It’s also quite impressive but doesn’t seem to be as strong as the other SARMs such as LGD-4033.

AC-262,536 is quite a weak SARM. It definitely doesn’t compare to the other SARMs used for bulking. In my opinion, you are probably better a different drug.

We aren’t finished yet, there is one more SARM we haven’t discussed. It is called S23 and let me tell you, this stuff is STRONG.

Most people stay away from it mainly because it tends to have side effects such as aggression. But this SARM is probably stronger than even RAD-140 and YK11.


I have used pretty much every SARM. Having used both Selective androgen receptor modulators and steroids I found the results to be very impressive.

A lot of people have asked me what I think about SARMs Vs Steroids.

Of course real steroids are stronger but they also carry more side effects. When researching with SARMs you can expect good results without a lot of side effects.

With steroids you’ll quickly run into acne, hair loss and heavy testosterone suppression. This is much less likely to happen with these compounds.

I found oral steroids such as Dianabol and Winstrol to have a lot more negatives than with Ostarine and Ligandrol for example.

Of course, both set of compounds have their pros and cons.


There is a lot of discussion on whether SARMS have side effects or not.

You should not be experiencing any severe side effects from using SARMs if you are staying within dosage guidelines.

That means you shouldn’t be doing anything stupid and taking way more than you are supposed to be taking.

The main reported side effect is suppression.

This means that your natural hormone production will be suppressed.

How do you know if you are suppressed?

You will start to experience low testosterone side effects. This means you will lethargic and basically have no desire to do anything. Some people will require a proper SARMs PCT in order to restore natural hormone production.

Sarms: how they work

The following compounds can be suppressive:

  • YK11
  • RAD-140 (Testolone)
  • LGD-4033 (Ligandrol)
  • Ostarine (MK-2866)
  • S-23
  • ACP-105

With GW-501516, SR-9009 and MK-677 you will experience NO suppression. They do not interfere with the body’s testosterone production. This means they also do not require any kind of Post cycle therapy (PCT).

Of course, they won’t be as suppressive as prohormones or anabolic androgenic steroids. It’s recommended to have a SARM PCT on hand when starting a cycle, even if you don’t end up needing it.

Other reported side effects of SARMs are nausea and headaches. However, there is no proof that these side effects are a direct cause of using the compounds.


A question I get asked a lot is…

Are Selective androgen receptor modulators (SARMs) safe?

The truth is, nobody really knows whether they are safe or not. The research on most of them is limited. We simply don’t have enough information to tell whether or not they are safe.

A lot of these research chemicals are still being studied to this day. Some clinical studies have shown promising results but the long-term side effects are still unknown.

If you do plan on researching with these compounds you have to make sure you are purchasing them from a reputable vendor. This is because some products labeled as SARMs don’t actually contain the correct compounds.


You need to be extremely careful when looking on where to buy SARMs. It’s very important that you are purchasing them from a good supplier.

Unfortunately, I’ve purchased bunk products before and trust me, it’s something you don’t want. Due to regulations a lot of vendors have stopped selling SARMs.

Luckily, there are still a few good ones left. My personal recommendation would be Sarms4You. They have been my to-go source for quite a while now. I am very satisfied with the quality of their products.

Sarms: how they work

SARMs: How They Work

SARMs have gotten extremely popular in the past few years. Most people don’t seem to know what they exactly are and what they are capable of doing. Or perhaps you have a lifting buddy that uses SARMs and you would like to get some more information on these compounds. There are so many misconceptions when...
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