WHAT IS OSTARINE (MK-2866)?
Ostarine (also known as Enobosarm, MK-2866, MK 2866, GTx-024, and S-22) was one of the first SARMs ever created and the most popular one in the market today. This is truly the OG SARM that first defined and continues to define this class of Perfomance Enhancing Drugs because it embodies everything a SARM should be: Effective, anabolic, selective and significantly safer than any Anabolic Steroid.
Ostarine is popular because it can do anything. Trying to get shredded while retaining muscle mass? Ostarine will help you. Trying to gain muscle mass without getting bloated or gaining a bunch of fat? Ostarine is there for you.
As you will learn in this article, MK-2866 Ostarine is also very safe when compared to most traditional anabolics. It has been used by hundreds of thousands of men and women in the last two decades, and you can find countless anecdotal reports showing that Ostarine does an incredible job at building muscle and strength with almost no noticeable side-effects.
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OSTARINE HISTORY
The pharmaceutical company responsible for the development of Ostarine is GTx, Inc. They originally developed it for the treatment of muscle wasting conditions and osteoporosis approximately 20 years ago. Since then, it has gone through numerous animal trials and, most importantly, clinical trials.
In a 2011 double-blind, placebo controlled clinical trial, Ostarine showed a dose-dependent improvement in total lean body mass and physical function and was well tolerated. The scientists concluded that Ostarine may be useful in the prevention and/or treatment of muscle wasting associated with cancer and other chronic diseases. [R]
Unfortunately, subsequent clinical trials did not achieve the desired results, decreasing the chances of Ostarine becoming an approved prescription medication for the treatment of muscle wasting and osteoporosis.
HOW TO BUY OSTARINE LEGALLY
Ostarine is a legal performance enhancing drug. Given that is has not been approved by the FDA, Ostarine can be classified as a research chemical. Research chemicals are completely legal to buy and sell online and over-the-counter, as long as they are being marketed as research products for laboratory use only and not for human consumption.
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HOW DOES OSTARINE WORK?
Like all SARMs, MK 2866 Ostarine works by attaching to the androgen receptor in muscle tissue and bones. There, it stimulates protein synthesis to accelerate muscle growth and bone density.
This mechanism of action is similar to that of Anabolic Steroids, but the difference is that Anabolic Steroids are not selective and they attach to androgen receptors in all kinds of tissues, whereas SARMs are as selective for muscle and bone mass as possible.

OSTARINE PROS & CONS IN A NUTSHELL
PROS:
- MILDLY ANABOLIC
- WILL IMPROVE STRENGTH NOTICEABLY
- WILL PROVIDE A DRY, HARD AND VASCULAR LOOK
- WILL INCREASE BONE DENSITY AND JOINT STRENGTH
CONS:
- WILL SUPPRESS TESTOSTERONE LEVELS (TO A SMALL EXTENT COMPARED TO OTHER ANABOLICS)
- WILL CAUSE DYSLIPIDEMIA
- WILL CAUSE MILD LIVER TOXICITY
BENEFITS OF OSTARINE
The benefits of MK 2866 Ostarine have turned this otherwise mild therapeutic solution for muscle wasting diseases into one of the best performance enhancing drugs and anabolics for beginners and experienced users alike. Whether one is trying to bulk up, get shredded or heal an injury, Ostarine is a great option.
These are the main benefits of Ostarine:
FAST MUSCLE GROWTH
According to studies, Ostarine built a singificant amount of muscle even on doses 20x lower than what bodybuilders normally take. [R]
STRENGTH INCREASE
BETTER FAT LOSS AND VASCULARITY
INCREASE BONE DENSITY & JOINT STRENGTH
SIDE-EFFECTS OF OSTARINE
Unfortunately, Ostarine is not side-effect-free. The amazing benefits you just learned about come with some negatives, but thankfully Ostarine is one of the safest SARMs and performance enhancing drugs you can use, so it’s fair to say that the pros outweigh the following cons:
TESTOSTERONE SUPPRESSION
DYSLIPIDEMIA
LIVER TOXICITY
HOW TO AVOID & REVERSE SIDE-EFFECTS
OSTARINE DOSAGE FOR BODYBUILDING
In clinical trials, the Ostarine dose used was of up to 3mg a day. Bodybuilders use from 10mg to 25mg a day, but the sweetspot that most male users prefer is 20mg a day.
Some users have tried doses of up to 50mg a day, but the benefits don’t seem to get any better past 30mg a day and only the side-effects increase, so high doses of Ostarine seem to cause diminishing returns.
Female users can get amazing results with as little as 5mg a day, and they should never use more than 10mg a day.
HOW TO CYCLE OSTARINE
The most common Ostarine cycle consists in 20mg a day, taken for a total of 8 weeks. The shortest Ostarine cycles are usually around 6 weeks, and the longest ones can last for up to 12 weeks.
We really believe that 20mg a day for 8 weeks is the best approach to using Ostarine, since it’s a protocol that allows most people to get amazing results without experiencing seriously nasty side-effects.
These cycles are usually followed by a 4 week Post-Cycle Therapy.

OSTARINE POST-CYCLE THERAPY (PCT)
Since Ostarine can suppress testosterone levels to a potentially large extent, we recommend all users to do a Post-Cycle Therapy (PCT) after an Ostarine cycle to restore natural testosterone levels and ensure the retention of muscle gains, strength and optimal sexual function.
The typical Ostarine PCT consists of 4 weeks of Tamoxifen (Nolvadex) or Enclomiphene (Androxal) use. You can learn more about the ideal PCT for SARMs here.
OSTARINE MK-2866 TL:DR
In a nutshell, we could say that Ostarine (MK-2866) is an incredibly effective and quite safe SARM that will build a modest but significant amount of muscle mass and strength without causing a ton of side-effects.
This is an excellent option for beginners who want to get their feet wet with PEDs, but also for experienced enhanced lifters who simply want to use something mild that will still provide great results.
WHERE TO BUY OSTARINE MK-2866
If you decide to do an Ostarine cycle, choosing a reliable company to buy from is crucial, since buying it from a bad company could result in you getting no results or getting horrible side-effects due to being sold something that’s not actually Ostarine.
We recommend going with Chemyo Ostarine MK-2866.
All of their SARMs vials come in 50 ml (milliliter) bottles, which is a full 20 ml more than the industry standard of 30 ml—that’s a 66% increase in the value you’re getting with these products.
Key benefits of Chemyo:
- Third Party Testing
- Very Good Prices
- Responsive Customer Support
- Wide Range of Products
- Big Cryptocurrency Discount
They have been in the game for half a decade and have truly become one of the most reputable and most respected providers for 99.9% pure SARMs and other research chemicals.
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