Ostarine MK-2866 (4 week cycle)


  • Increases Lean Muscle Mass
  • Improves Bone Density
  • Increases Strength & Power
  • Cutting Sarm
  • Joint Healing
  • 1ml = 25mg of MK-2866 (30ml per bottle)
SKU: MK-2866 Category:

What is Ostarine (MK-2866)?

Ostarine, more formally known by its alphanumeric name MK-2866, is probably one of the most popular SARMS out there on the market today. It’s most often used as a beginner SARM, due to its more mild results. However, because of this, there are much less side effects compared to steroids. It’s most popular use is for the cutting phase, but can also be used for bulking and recomping.

5 Key Benefits of Taking MK-2866

There are many benefits you will experience by including Ostarine into your stack.

1- Cutting Cycles
Ostarine is a staple in many peoples’ cutting cycles, and there’s a good reason for this. It works!

Especially for those who are very deep into their dieting phases, this will help you to retain that precious lean mass that was so hard to build in the first place. Not only that, but it may even allow you to even build more muscle during this time!

2- Synergy with Other SARMS
Not only is Ostarine good for cutting, but it’s also very versatile in terms of how it can be stacked.

Because of its milder nature, this allows it be much safer to stack with other SARMS to create that synergism that you’re looking for. For example, you could stack it with Testolone (RAD-140) to really rev up the muscle-building and fat burning.

3- Fast Onset Time
Ostarine has a pretty fast onset time, relative even to some steroids out there. Most people claim that they feel and see it working around the two week mark.

4- Mild Side Effects
Again, because of its mild effects on muscle mass, it does not produce nearly as much side effects as some other SARMS do. Because of this, Ostarine is a great SARM for beginners.

5- Versatility
Although Ostarine is best known for its cutting abilities, it is also a good muscle-builder as well. This is particularly true with those that are new to SARMS.

Ostarine (MK-2866) Dosage

There is no established set dose for Ostarine, since there is limited scientific data out there conducted on humans. Because of this, dosages are more of a matter of trial and error.

Fortunately, there is a range that is applicable to most people using SARMS. This usually is around 10-30mg. Keep in mind when stacking with other SARMS that you should lower the dose of Ostarine accordingly. For example, if you’re stacking with RAD-140, you should take 10-15mg of each. You’re simply just switching the numbers around here so that you don’t have too much of one of these substances in your body, which could cause unpleasant side effects such as nausea.

Is Ostarine (MK-2866) Safe?

In general, most people tolerate Ostarine very well. As long as they stay within the 10-30mg dosage range, they should be fine. When taken over this amount, that’s when those previously mentioned unpleasant side effects could arise.

What is the Best Ostarine Cycle?

This is a tough question to answer, as there has not been an established “best” dosage yet, in terms of research. However, a very tolerable range for most people seems to lay in the 10-30mg range, where 10-20mg is best for cutting, and a slightly higher 20-30mg is best for bulking and building muscle.

You would take this for about 8 weeks, and then cycle off for 4 weeks before beginning again. This gives your body a chance to recuperate and lessen the chance that you will suppress your testosterone levels.

Do I Need a PCT After Using Ostarine?

In most cases; no. However, I would have PCT supplements and supplies on hand just in case you use this for longer than 14 weeks at a time,.

What Kind of Results Can I Expect From Ostarine?

Don’t be misled by some of the online SARM forums. You most likely won’t experience super dramatic results from Ostarine. However, you’ll definitely see more results than you would naturally, that’s for sure.

Most people report that Ostarine takes about 2 weeks to kick in for them, sometimes sooner. Many people see approximately 4 – 7 lbs of lean muscle mass by the end of a standard 8-week cycle.

Although some people use Ostarine to build muscle and bulk up, the cutting cycle is where it really shines. Not only does it help you to shed fat, but also helps you to retain lean muscle mass while in the deeper phases of your diet.

What is the Best SARM to Stack with Ostarine?

There is no one-size-fits-all answer here. However, I believe the best value for your money in this case would be Ligandrol, also known as LGD-4033.

I say this because since Ostarine is most effective for cutting cycles, Ligandrol would be a perfect addition to add as a potent muscle-builder, as it is much more potent for bulking than Ostarine is.

Another popular option is taking it with Cardarine (GW-501516).  This is very popular with martial artists, especially Muay Thai Fighters. Ostarine builds lean muscle mass perfect for combat sports, while Cardarine will increase your endurance for the later rounds in the fight.

How Do I Take Ostarine?

Sarms should only be taken in the liquid form. When taking it in a liquid dropper form, it’s important to realize how much you’re putting into the dropper, as this often gets overlooked. Dosages for SARMS are given in mg/mL. For example, this Sarms is 25mg/mL, and if you have to take 12.5mg of Ostarine, then you would simply take 0.5mL. It’s simple math, but many people surprisingly don’t pay attention to it.


Ostarine should most definitely be considered by those who are new to the scene of SARMS, as it’s virtually side-effect free and can help you build a respectable amount of muscle in an 8-week cycle.


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