If you have any questions about what SARMs are. What they do, how many types of SARMs are there, and their specific functions, then you have come to the right spot. This article will be discussing SARMs in detail and some of the most popular types of SARMs. It will give you a clear idea of their functions and usage.

What Are SARMs?

SARMs stands for Selective Androgen Receptor Modulators. SARMs have gained a lot of momentum among the bodybuilding and fitness community due to their muscle and strength boosting properties.

A lot of athletes and fitness enthusiasts have been using SARMs to raise their fat loss process. It straightens their muscle mass, in turn boosting their performance. SARMs are a kind of drug which has muscle-building properties and is quite similar to anabolic steroids. However, the side effects of SARMs are lesser than steroids.

What sets SARMs apart from steroids is that steroids affect the whole body. People can become dependent on them when used over a long time. However, with SARMs, they only target the bone, flesh, and muscle in the body and do not affect other body parts.

Hence, the whole body is not affected by their consumption and people get targeted results upon their usage. SARMs are milder than regular steroids. They do not break down into different molecules in the blood-stream like the steroids do, due to which they have lesser side effects.

Different Types of SARMs

There are different types of SARMs. Some are heavier than others. However, the heavier SARMs have more side effects as compared to the milder SARMs. Until now, SARMs haven’t been officially and legally approved. The pharmaceutical companies haven’t branded them yet, and they still go by their molecular names or code names. The different types of SARMs and their function are discussed in detail below.

Functions of Various Types of SARMs

Ostarine MK-2866

This is a very popular SARM and is usually prescribed to bodybuilders who are looking for ways to prevent muscle wasting. Ostarine MK-2866 is not just used by bodybuilders to protect their muscle mass but also used by people suffering from various diseases such as HIV/AIDS.

Its usage by patients and bodybuilders have proved that it is quite effective, therefore, more studies are being done to see if it can be used and prescribed for hormone replacement therapy (HRT) by doctors. It is also less expensive than the regular steroids and has no adverse effects on blood pressure and liver functions of the users.

Functions of Ostarine MK-2866

Ostarine MK-2866 helps in the prevention of muscle wasting and ensures that the body produces more lean muscle tissue and boosts muscle strength. The results of Ostarine MK-2866 are quite similar to steroids, however, it is milder and it doesn’t affect sexual functions and organs of the body like steroids.

Ostarine MK-2866 is now being prescribed by doctors in the treatment regimen of cancer and AIDS as well so that the patients gain muscle mass and their remaining muscles are protected. It does not cause water retention in the body and helps the users to see results very quickly without facing adverse effects upon usage.


LGD-4033 is a very popular bulking agent that is gaining a very good reputation among the bodybuilding community. The functions of LGD-4033 are quite similar to Ostarine MK-2866. However, each dose of LGD-4033 is about 12 times more powerful than a dose of Ostarine MK-2866.

Therefore, LGD-4033 is used by people who are looking for strong SARMs to build their muscle density and strength. This is one of the most popular SARMs out there and most of its users are either bodybuilders or athletes.

Functions of LGD-4033

LGD-4033 is used by bodybuilders to bulk up their muscles in a relatively short amount of time. It suppresses the Hypothalamus-Pituitary-Testes-Axis in the human body, due to which the immune system of the body is controlled and monitored, while muscle density is being built.

The half-life of LGD-4033 is 24-36 hours, therefore, most people use it on a daily basis. Its usage is often combined with an AI like Exemestane so that there are no side effects on the body.


GW-501516 is a kind of PPAR. Upon usage, it regulates the glucose levels in the body and helps the body in protecting and producing more muscle tissue. Due to the way it targets glucose in the body, it can be effectively used by obese people, or by people who have diabetes as well, so that their glucose levels are regulated and metabolism stays on track.

Functions of GW-501516

GW-501516 is a type of agonist and its results are quite instantaneous and potent. Most of the researches done on GW-501516 is done on rats. The results of these researchers show that when GW-501516 was given to obese rats, they were able to lose weight and increase their metabolism.

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The usage of GW-501516 also helps improve endurance in athletes and helps them in reducing their body fat. It is advised that GW-501516 is used with Ostarine so that any side effects of GW-501516 are minimized.

Andarine S4

Andarine S4 binds to androgen receptors inside the human body. It helps in the treatment of Osteoporosis, reduction of muscle wasting, and treatment of Bening Prostatic Hypertrophy. This is taken orally in doses of 50mg, for about 5-8 weeks. The regular usage of Andarine S4 helps in building lean muscle in the body and prevents the body from water retention.

Functions of Andarine S4

Andarine S4 is used a lot by people who are looking for ways to lose their body fat. It helps in the synthesis of protein in the body, and therefore, lean muscle is easily built into the body. Users of Andarine S4 report that they feel an overall sense of wellbeing when they use it in their diet.

MK 677

MK 677 (Ibutamoren) is most often used by bodybuilders who are looking for ways to increase their bone density and muscle mass. Regular usage of MK 677 (Ibutamoren) helps in increasing the IGF-1 levels and growth hormones in the body.

Functions of MK 677

The best part about the usage of MK 677 (Ibutamoren) is that it is non-hormonal. Female athletes can consume it easily without any fears of the drug messing up their hormones. Upon regular usage, it also helps in stabilizing the sleep cycles.

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