|Also known as:||Enobosarm, MK 2866, GTx-024|
|Dosage:||25mg a day|
|Good for:||First time sarm users and cutting cycles.|
|Legal status:||Legal in the USA for research purposes only.|
|Stacks well with:||Cardarine (cutting), MK 677 (bulking)|
|Common side effects:||Temporary suppression of testosterone levels.|
Ostarine, also known as MK 2866, is one of the most popular SARMs available. It has a very strong anabolic effect, and can be used for both bulking and cutting.
In this article, I am going to discuss benefits, side effects, dosages, cycle examples, before and after pictures, and more. By the end of this article, you will have everything you need to know about ostarine.
If you are still unsure about anything, feel free to write in the comments section below and I’ll get back to you ASAP!
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4 Benefits of MK 2866
It’s Extremely Mild
Side effects from sarms can put a big damper on your training.
Luckily, ostarine is extremely mild and well tolerated by those who use it. It is very uncommon to experience side effects while on cycle.
Multiple studies demonstrate it’s high safety profile and efficacy.
MK 2866 can be used to bulk, cut, or even recomp depending on your goals and diet.
Because it’s so mild, you can stack it with other compounds to improve your overall results.
Ostarine works best on a cutting cycle, especially stacked with cardarine or andarine.
Safe for Women
Ostarine is safe for women since it is not androgenic in any way. Women should use a lower dosage (10mg a day) to prevent potential side effects.
I have many female friends who compete in local bodybuilding shows. Pretty much all of them are taking some sort of SARM. More and more women are ditching steroids like Anavar in favor for sarms.
Impressive Physique Changes
The physique changes you can achieve from running an eight week cycle are nothing short of mind blowing.
Expect dry, vascular gains while on cycle. Even with no change in diet, ostarine has the ability to radically improve your overall athletic condition.
This study is a great example of the anabolic effect ostarine has on the body.
Top 3 Results To Expect
As I mentioned above, Ostarine causes some incredible changes in your body when taken. I am going to mainly focus on the physical results since that’s what most of my readers care about.
If you’re interested in some of the other health benefits of sarms, you can refer to this study.
It’s not a secret that SARMs can help you build large amounts of muscle. Ostarine is no different.
During an 8 week cycle of Ostarine, you can expect to gain around 7-10lbs of lean body mass.
This study shows that even after subjects stopped taking ostarine, they continued to retain muscle mass gained from the cycle.
Bottom line? MK-2866 makes it easy to achieve long lasting gains in the gym.
Although not a direct aide to thermogenesis, Ostarine can help promote fat oxidation in humans.
Users who are in a caloric deficit will experience much better muscle retention compared to natural lifters.
In addition, it has been proven that increasing muscle mass will increase TDEE (how many calories you need a day to stay the same weight). When you gain muscle, your body will naturally burn more fat as energy in order to keep that muscle.
Ostarine especially shines when combined with strength training, and users consistently report strength gains similar to those found in anabolic steroids.
In fact, it is not uncommon to add 30lbs or more to your one rep max for bench press or squats.
For this reason, MK 2866 is a very popular choice with athletes who want to increase their performance on the field or court.
Ostarine Before and After Pictures
We’ve collected some pictures that show before and after results.
As you can see from the pictures, ostarine is a very potent SARM that can give some impressive drops in body fat but also pack on some muscle as well.
Results like the ones above are not uncommon when using this compound. Of course, your mileage may vary depending on how well you keep your diet and routine in check.
Make sure to keep your protein intake high and you’ll have no issues achieving your goals.
Side Effects and Safety
One of the main concerns people tend to have when adding any sort of performance enhancer to their lives is what type of side effects to expect.
Luckily, ostarine has very little side effects to deal with. With that being said, there will always be some rare occasions of people experiencing side effects, and we wouldn’t be doing our jobs if we didn’t talk about them.
I’ve only seen this happen in one case, and it may not be due to using SARMs. This user reported feeling depressed around a week after starting ostarine.
In my opinion, this could be caused by a slight dip in testosterone levels, or it could just be a placebo. Worth noing, nonetheless.
Ostarine = Hair Loss?
Hair loss from sarms ONLY occurs in people who already have male pattern baldness. If your hairline is fine, this does not apply to you.
This user on the AnabolicMinds forum reported hair shedding on ostarine, but also mentioned in a later post that it reversed after stopping use.
I find is suspicious that it caused hair loss, since it is not androgenic in nature. It is very possible that this user received a fake product (that contained prohormones) and that is what caused the shedding.
You can avoid buying fake sarms by shopping with one of these sources.
Some people with naturally low testosterone might experience some lethargy while on cycle. This is because sarms slightly suppress your body’s natural production of testosterone.
The good news is that your body will naturally fix the imbalance within a month after you stop taking it. Studies show it takes around 5 weeks to completely recover.
Note: The above study was completed using LGD 4033
With that being said, if you have been diagnosed with low T you might want to consider getting on TRT prior to starting a cycle.
Follow these guidelines when deciding how much MK 2866 to use in your next cycle:
- Start low and work your way up
- Increase dosage every few days
- Cutting cycles generally require a smaller dose than bulking
With those key points in mind, lets jump into a few sample dosage guides.
Dosage For Bulking
Bulking on ostarine will require a slightly higher dosage than cutting, for the reasons outlined above. It takes a higher dose to create muscle than it does to retain it.
For those reasons, I recommend 25mg a day for anyone weighing over 185lbs. For those weighing less, you should give 20mg a day a try and see how you react.
Like I mentioned above, you should with a lower dose and work up. If you plan on doing a 25mg a day dose, I recommend working up like this:
- 10mg for week 1
- 20mg for week 2
- 25mg for week 3 and beyond
If you respond well, you can skip the ramp up period for the next time you cycle MK2866.
For bulking cycles, I wouldn’t advise a cycle lasting longer than 12 weeks.
Dosage For Cutting
Using MK2866 for a cutting cycle will require a smaller dosage than a bulk. Retaining muscle mass while in a deficit is easy to achieve with smaller doses. You’re also less likely to experience side effects.
I recommend no more than 20mg a day while cutting.
Start at 10mg a day for your first week, and increase to 20mg for week two and beyond.
Cutting cycles should not last any longer than 12 weeks in order to prevent suppression.
The half life of ostarine is 24 hours. This means that you can dose once per day with no issues in peak blood plasma levels.
I advocate for splitting doses between morning and night (or every 12 hours) in order to keep levels the most steady.
Some people also enjoy dosing pre-workout, however studies haven’t shown any noticeable difference.
Ostarine Liquid vs Capsules
I prefer liquid solutions for the following reasons:
- Creating accurately dosed capsules requires expensive equipment that most labs don’t have.
- Capsules force you to take full days dose at once, so you can not split between AM and PM like you can with liquids.
- Liquids store well and can be taken sublingual to increase effects.
Where to Buy
If you want to buy ostarine online, there are a few things you should know before you place an order.
First of all, there are a ton of fakes out there. We have reviewed over 20 different sarm suppliers, and found than over 75% of them provided either fake or under dosed products.
One of the most common things I see are suppliers who ship out solutions containing prohormones such as superdrol.
These prohormones are dangerous, can cause side effects like gyno, and will shut you down hard. Do not gamble with what you put into your body.
There are a handful of companies that we can vouch for. Refer to this list and choose a company from the “recommended sources” section.
Use During PCT
One of the more interesting ways to use this compound is to actually take it during your post cycle therapy. Since MK-2866 is so mild, it can in theory be used to retain muscle mass while coming off of other anabolics such as testosterone.
If you plan on doing this, you must know two things:
- The benefits of using sarms during PCT are hypothetical at best.
- Only use low doses, something like 10mg a day max.
Depending on who you listen to, you will find mixed reviews on using it for this purpose.
You can take the liquid by simply measuring out the correct dose with an oral syringe, and squirting it into your mouth. Rinse down with water or juice. You may also take it under the tongue and let it sit there for 1 minute before swallowing. Ostarine liquid is NOT for injection. It is an oral solution.
It should start working within one week. You will continue to feel it get stronger and stronger over the course of a month or so. By 30 days into your cycle, you will be in full beast mode.
It is actually one of the least suppressive sarms in existence. Blood work consistently shows that any reduced levels of testosterone are reversed within a month or two. This is one of the reasons it’s so popular.
I would recommend staying away from sarms if you are drug tested. However, if you plan on taking it anyways, allow a solid month to let it clear your system completely.
Usually not, depending on cycle length. If you plan on going the full 12 weeks, it might be a good idea to do 4 weeks of tamoxifen (Nolvadex) at 20mg for four weeks. You will not need anything stronger than that (stay away from Clomid).
Chris Jackson is a fitness blogger, physique model, and co founder of SARMS.io. He received his degree in exercise physiology from the University of Miami in 2012 and now contributes to some of the largest mens fitness publications in the world.