Ostarine (MK-2866)

What is Ostarine?

Ostarine, also known as Enobosarm or MK-2866 is a selective androgen receptor modulator(SARM). This SARM is used to avoid and treat conditions such as muscle wasting and osteoporosis. The SARM Ostarine has a lot of benefit to those suffering from the muscle wasting diseases such as: cachexia, sarcopenia and muscle atrophy. It also has its use in hormone or testosterone placement therapy (HRT/TRT).

‘Gaining a lot of lean muscle without the nasty side effects?’

What are the benefits and side effects of Ostarine?

MK-2866 is a great SARM because it directly binds to the androgen receptors and it will increase protein synthesis just like anabolic steroids. Ostarine does not have the nasty side effects such as estrogen conversion or DHT conversion that have been known to be caused by steroids. As we know from the previous chapter, MK-2866 is used to prevent and cure muscle waste. This is where Ostarine’s potential comes in play, the fact that Ostarine is able to prevent muscle waste means it also has great potential to build lean mass.

For athletes, bodybuilders and fitness enthusiasts this means Ostarine can be both used for bulking and cutting or even recomping. For bulking this means rapid lean muscle and strength gains without unwanted side effects such as gynecomastia and water retention. For cutting, Ostarine will prevent losing muscle during a caloric deficit. On top of its muscle prevention benefits, it also has the benefit of healing and repairing joint injuries which have been backed up by various studies.

The side effects of Ostarine are very limited, in comparison to other drugs, it is very user-friendly. The only side effect you can experience from the sarm Ostarine is a mild testosterone shutdown if you choose to run it for longer cycles.

How does Ostarine work?

Ostarine binds directly to the androgen receptors and will also increase protein synthesis and build lean muscle. This SARM shows osteo (bone) and myo (muscular) selective anabolic activity. The tying and stimulation intensifies protein synthesis and builds muscle.

Ostarine molecules

How to use Ostarine?

Ostarine is a great SARM because it can be used for both bulking and cutting. MK-2866 has a half-life of 24 hours, meaning dosing once a day is sufficient.

For bulking it is recommended to start off at 20mg a day, depending on your bodyweight you can work up to 30-35mg a day. The cycle itself should last anywhere from 4 to 8 weeks. A higher dosage will, of course, put you at higher risk for a complete shutdown of your testosterone system, so a PCT(Post Cycle Therapy) is definitely a must.

For cutting, MK-2866 can assist you greatly in preserving muscle mass. A minimum of 15mg MK-2866 should be sufficient to help you hold onto your muscle mass during a caloric deficit.

Ostarine experiences

MK-2866 gets a lot of positive reviews because it is a solid alternative to anabolic steroids. Users report lean muscle mass gains anywhere from 5 to 10 lb after completing the cycle. The strength gains of using MK-2866 are also very impressive, some users have reported adding 30lbs to the bench press in 4 weeks! A lot of users would gladly use Ostarine again for a second cycle because it was everything they expected.


[Editor’s Note: Ostarine (MK-2866) is intended as a collaborative, growing body of work, as opposed to a static, singleauthor piece. If you have comments, suggestions and of course any corrections, please contact us via email: info @ sarms4you (nospaces).]