Ostarine (MK-2866)

(52 customer reviews)


Earn 29 - 142 points upon purchasing this product.

  • 1st and 3rd Party Verified for 99% Purity
  • Free Shipping on Orders Over $100+
SKU: N/A Category: Tag:


Ostarine (MK-2866) – Product Information

Ostarine, also known as MK-2866, is currently one of the best research compounds focused on research applications in the field of lean muscle mass. However, Ostarine was initially created to help fight muscle-wasting diseases.

According to research, it has the potential to selectively bind to androgen receptors and displayed beneficial effects on muscle structure and metabolism in ovariectomized rats. Ostarine also displayed improved muscle vascularization in ovariectomized rats.

This yields massive potential in the field of research to further investigate the possibility of preserving lean muscle tissue during a caloric deficit.

Ostarine MK – 2866
CAS Number 1202044-20-9
Molar Mass 389.33 g/mol
Chemical Formula C19H10D4F3N3O3
IUPAC Name 3-(4-cyanophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide

How Does Ostarine Work?

Ostarine MK 2866 is a selective androgen receptor modulator or SARM that works by targeting androgen receptors on a selective basis. Unlike anabolic steroids or testosterone, it is researched for its ability to mainly focus on the muscle and bone tissue, sparing the reproductive organs.

This selectivity enables Ostarine to avoid a wide range of potentially intense side effects and has given researchers the opportunity to study this SARM in female and elderly test subjects. However, long-term and randomized human trials are needed to verify its safety.


Ostarine Research

Ostarine is one of the most well-researched SARMs. Many clinical trials have been conducted on this research compound. It has also been researched in cancer patients, postmenopausal women, and the elderly. Here’s what existing studies have to say about MK-2866:


Ostarine and Muscle Mass

A double-blind placebo-controlled trial set out to investigate the effects of Ostarine on lean body mass and physical function in healthy elderly men and postmenopausal women. It was found that Ostarine produced a potential dose-dependent improvement in total lean body mass and physical function. [R]

In another trial, Ostarine was studied for its effects on muscle wasting and physical function in patients with cancer. One group was administered a placebo and two groups were given Ostarine. Both MK-2866 groups experienced significant increases in total lean body mass compared to baseline levels. [R]

This shows the massive potential research implications of the anabolic effects MK-2866 can possess.


Ostarine and Bone Density

Ostarine is being researched for its potential ability to improve bone density.

In a rat model of osteoporosis, MK-2866 was administered for 5 weeks to ovariectomized rats. Another ovariectomized group of rats received no Ostarine. The final analysis showed improvements in structural properties such as bone mineral density and bone volume density in the Ostarine group. [R]

In a separate study, the potential bone-healing effect of Ostarine in ovariectomized rats was investigated. The final results showed that Ostarine appears to positively affect early bone healing. Long-term and randomized human trials are needed to explore its potential as a therapy for osteoporosis. [R]


Ostarine and Heart Health

A 12-week double-blind, placebo-controlled trial was conducted to evaluate various effects of Ostarine in healthy elderly men and postmenopausal women. The trial’s subjects were divided into three groups, including 0.3mg, 1mg, and 3mg.

Ostarine treatment decreased serum triglycerides in the 1- and 3-mg groups compared to placebo. A statistically significant reduction in total cholesterol was also observed in all three groups. The 3mg group also experienced a significant decrease in blood glucose. [R]

This shows massive promise in Ostarine’s potential ability to improve heart health.


Ostarine and Diabetes

In the same trial quoted above, Ostarine brought about a decrease in insulin resistance from baseline in the 1-mg and 3-mg treatment groups. Researchers noted that the decrease was similar to that observed with glipizide and metformin, drugs used in the treatment of diabetes. [R]

However, more randomized long-term trials are needed to investigate the potential anti-diabetic effect of liquid Ostarine.


Ostarine and Fat Loss

In the same study quoted above, the effects of Ostarine treatment on fat mass in healthy elderly men and postmenopausal women were noted. A statistically significant decrease in total fat mass was observed at the 3-mg Ostarine dosage.

The decrease in fat mass from baseline in the 3mg group compared to placebo was similar in females and males. There was approximately a loss of 0.6kg relative to the placebo. [R]


Where to Buy Ostarine Online

PureRawz is the best place to buy Ostarine for sale.

In order to be the best SARMs supplier, we provide reference materials with every product we sell. Each of our SARMS comes with an independent, third-party-issued Certificate of Analysis for identification, purity, and concentration.

We offer free international shipping on all orders above $100. You can pay for your purchase through various methods, including PayPal and Bitcoin. Click on the ‘Reviews’ tab to check out what existing customers have to say about our products and great customer service.


Ostarine FAQs

Is Ostarine Illegal to Purchase?

Ostarine is legal to purchase as a research compound.

Like other selective androgen receptor modulators, it can be used for laboratory research use only. However, since it is on the World Anti-Doping Agency’s list, athletes and professionals should avoid this compound.


Does Ostarine Shut Down Testosterone Production?

In a double-blind placebo-controlled trial, there were no statistically significant differences in free testosterone levels in Ostarine groups relative to placebo.


Ostarine has demonstrated its ability to improve lean muscle mass, reduce body fat and increase bone mineral density in a clinical studies. More long-term randomized clinical trials are needed to understand its safety and efficacy in humans.


This information is for educational purposes only and does not constitute medical advice. THE PRODUCTS DESCRIBED HEREIN ARE FOR LABORATORY AND RESEARCH USE ONLY. All clinical research must be conducted with oversight from the appropriate Institutional Review Board (IRB). All preclinical research must be conducted with oversight from the appropriate Institutional Animal Care and Use Committee (IACUC) following the guidelines of the Animal Welfare Act (AWA).
Our content is intended to be used and must be used for informational purposes only. It is very important to do your own analysis and research from Trusted Sources before making any purchase based on your own personal circumstances. You should independently research and verify any information that you find on our Website and wish to rely upon.
By completing and paying for your order, you agree to our Terms and Conditions. Customer satisfaction is our number one priority, if you are not 100% satisfied with the product you received, please contact us at [email protected]
ATTENTION: All our products are for LABORATORY AND RESEARCH PURPOSES ONLY not for veterinary or human usage.


COA MK 2866 lot 0051 2023 08 28 PR 1 1

52 reviews for Ostarine (MK-2866)

  1. User Avatar: Andrew McKenzie-White

    Andrew McKenzie-White

    Cool results, thank you! Definition and mass.

  2. Adam Richards

    Finally found something that gives real results – thanks guys!

  3. Robert Doucet

    It works, My lab rats looks stronger than me XD

  4. Kyle Watson

    Best Ostarine on the market!

  5. Jacob

    Amazing stuff. Lab rat noticed a huge difference, definitely the real deal

  6. Mike Coller

    Unbeatable quality!

  7. Jarryd Seelinger

    100% does what it’s supposed to do!

  8. Matt Gomez

    Great energy improvement, wow!

  9. DAE

    THIS STUFF WORKS! As a professional Bodybuilder I’m all about longevity. And this is the perfect supp to help me cut while adding even more positive changes to my health. Works like a charm every prep.

  10. David Ivof

    Great quality! This is the first time I ordered online and I was hesitant about the quality of the product but they proved me wrong. Will order again for sure!

  11. mikelee83.mg

    Initially I wasn’t sure I would get the desired results. After 8 weeks I was leaner, more dense muscle, and stronger. I made substantial gains. Early on, maybe two weeks in I developed a mild headache, but it went away as I got into my groove. Very little negative, very much positive, I highly recommend.

  12. Aaron Wilson

    100% pure quality

  13. jschristmas

    Solid product and one of the first SARM’s I ever tried. Great for all around gains, it may not be as potent as some others out there, but it will get you where you need to go and stacks extremely well with other SARM’s.

  14. Abraham E (verified owner)

    Fast shipping, came in 6 business days. Very good customer service, always responds back on any question.

  15. Joseph Curt

    Wow. I am a hard gainer, but this did the trick. I picked up a solid 15lb. Will ordering more soon

  16. Matthew Flores

    A great product to use for building. I love the results!

  17. David Drobnack (verified owner)

    My lab rat was impressed with the quality of this product!

  18. Justin A

    Super product. Can surely recommend it.

  19. Roy Martin

    Great product, saw major results in the first weeks of using this product.

  20. Q W

    Gives amazing definition!

  21. Brett Makel

    Great stuff. Lab rat felt amazing right away and gained tons of muscle

  22. Peter J

    All over improvement, fat loss, muscle gain

  23. Anonymous

    Super impressed – good worth for money!

  24. Kelvin Tillman

    I’ve felt more energy and strength. Yes – I would recommend.

  25. J Logan

    very obviously my test rats are doing well with
    no observable issues – its impressive ! they
    are actually very old rats – so its easy to see
    any changes !

  26. Mark Andres

    With this product I can now workout 2 times a day, works amazing .

  27. Jim (verified owner)

    🔥 Research is going great

  28. Adrian Green

    Great quality, keeping more muscle mass than I thought I would.

  29. Neil Neumann

    Awesome! This is a fantastic product that I will keep buying.

  30. Dexter Watts

    The lab rat detected a significant change, and it appears to be stronger. Significant energy improvement. Amazing!

  31. Enrik

    Finally found something that gives real results. They are the same with New SARMS you will get very good result!

  32. Wade D. (verified owner)

  33. joshmiddleton85

    Amazing! Grade A+ product. Smooth oil, amazing results! God bless

  34. Verified Buyer (verified owner)

  35. Mirko Cadenas (verified owner)

  36. Frank P. (verified owner)

  37. Daniel Gillis (verified owner)

    Not sure yet but I have high hopes for this one

  38. deniyel v. (verified owner)

    effects noticeable

  39. Anonymous (verified owner)

  40. Nicole B. (verified owner)

  41. Dennis M. (verified owner)

    Definitely order again

  42. Jim Ryan (verified owner)

    I have not tried this yet, but my experience with your products is that they are always top level quality

  43. Redacted

    The real deal!

  44. Anonymous (verified owner)

  45. Robert B. (verified owner)

    Product seems to be working. Currently I’m at my early stages.

  46. Christian Dutton (verified owner)

  47. Dakota (verified owner)

    Always a good one for the money

  48. Gregory Mullery (verified owner)

    what i expected

  49. Thomas (verified owner)

  50. Drew (verified owner)

  51. Paul Fluet (verified owner)

    From ordering to receiving at my door way 4 days, product was very clean and I love the complementary sticker that came with it will be ordering more from PRZ today is 4-15-24

  52. jobog22795

    Noticed significant gains in muscle and strength. Plus, recovery time has improved.

Earn 10 points by reviewing this product.
Add a review

Please click here to access instructions on how to make a payment.

How to Pay