FREE US Shipping on Orders Over $100+

3rd Party Verified to Ensure Purity & Concentration

30-Day Money Back Satisfaction Guarantee

Ostarine (MK-2866)


33 in stock


30-Day Money Back Guarantee

Premium red professional free shipping design

Free US Shipping On Orders Over $100+

Premium Norton Secure badge

Website is safe & secure by Norton™


Buy Ostarine (MK-2866) for Sale

Ostarine is a selective androgen receptor modulator (SARM) developed by GTx Inc. for treating muscle-wasting diseases. It is also known as Enobosarm or MK-2866. Studies have shown that Ostarine can improve lean body mass and decrease fat mass in healthy adults.

MK-2866 has also demonstrated the ability to reduce low-density lipoprotein (aka ‘bad’) cholesterol, fasting blood glucose, and insulin resistance in humans. In preclinical studies, Ostarine has been reported to improve bone mineral density and bone volume density.

Research Chems sell Ostarine for laboratory research use only.


What is Ostarine?

Ostarine, also known as MK-2866 or Enobosarm, is a non-steroidal SARM that has been studied for its potential therapeutic uses. Developed in the late 1990s by GTX, Inc., Ostarine was originally designed to treat conditions such as muscle wasting and osteoporosis.

Studies have shown that Ostarine may have several potential therapeutic uses. In a 12-week double-blind, placebo-controlled trial, it was found to increase muscle mass and improve physical function in healthy elderly men and postmenopausal women. [R]

Additionally, Ostarine may have potential applications in the treatment of breast cancer, due to its ability to selectively target androgen receptors in tumor cells. It has also exhibited the ability to reduce fasting blood glucose and LDL cholesterol level in healthy adults. [R][R]

Despite its potential benefits, Ostarine has been banned for human consumption by regulatory agencies such as the U.S. Food and Drug Administration (FDA) and the World Anti-Doping Agency (WADA). As there’s still limited research on its long-term safety and efficacy.


How does Ostarine Work?

MK 2866 Ostarine works by binding to androgen receptors in the body, specifically in muscle and bone tissue, leading to an increase in protein synthesis and muscle growth.

Next, it initiates a series of cellular events that ultimately result in increased protein synthesis. This is because androgen receptors are responsible for regulating gene expression, and when Ostarine binds to them, it increases the expression of genes related to muscle growth and repair.

Unlike anabolic steroids, Ostarine only targets androgen receptors in the muscle and bone tissue. It does not bind to receptors in other tissues, such as the prostate gland, which can lead to unwanted side effects, making it a potentially promising alternative to traditional anabolic steroids.


Ostarine Research

Numerous studies have been conducted on Ostarine to explore its potential as a SARM. These studies have looked at the safety, efficacy, and potential therapeutic uses of Ostarine and its effects on muscle mass, strength, and physical performance.

In this section, we will discuss what the research has to say about Ostarine. We will also examine the results of various studies and clinical trials and the current state of research on this SARM.


1) Ostarine and Lean Body Mass

A 2007 study examined the effects of Ostarine on lean muscle mass and physical performance in healthy elderly subjects. It found that Ostarine treatment produced a dose-dependent increase in total lean body mass, with an increase of 1.4 kg compared to placebo at a specific dose. [R]

Additionally, in a 12-week double-blind, placebo-controlled trial, Ostarine increased total lean body mass, physical function, and insulin resistance in healthy elderly men and postmenopausal women. Researchers further noted that Ostarine treatment was well-tolerated. [R]


2) Ostarine and Cancer Cachexia

Cancer cachexia is a condition that often occurs in people with cancer, particularly those with advanced stages of the disease. It is a multifactorial syndrome characterized by loss of skeletal muscle mass, weight loss, and systemic inflammation.

A 2016 study gave cancer patients MK-2866 or a placebo for up to 113 days to measure changes in lean body mass. Both MK-2866 groups showed significant increases in lean body mass compared to the placebo group. No adverse effects related to Ostarine were observed. [R]


3) Ostarine and Body Fat

A 2020 preclinical study examined the effects of Ostarine and another SARM on body fat. The study was conducted on an animal model of postmenopausal osteoporosis. Results show that the group receiving MK-2866 experienced a notable decrease in fat mass. [R]

Similar results were obtained from a phase-2 trial investigating the efficacy of Ostarine in healthy elderly men and postmenopausal women. The trial showed that MK-2866 treatment stimulated a notable decrease in fat mass compared to placebo group members. [R]


4) Ostarine and Bone Strength

A preclinical study investigated the effects of Ostarine on rats with their ovaries removed. The results showed that MK-2866 could help bones heal faster by increasing bone density and improving muscle weight. The study suggests that Ostarine could be a potential treatment for osteoporosis. [R]

Another study aimed to evaluate the effects of Ostarine on postmenopausal osteoporotic bone in rats. The results showed that the treatment improved structural properties, such as bone mineral density and bone volume density, but not biomechanical properties. [R]


5) Ostarine and Breast Cancer

According to results from a 2018 preclinical study, Ostarine reduced tumor growth and inhibited the expression of genes and pathways that promote breast cancer development through its actions on the androgen receptor. It also reduced the size of tumors in mice. [R]

A 2018 study published in the journal Cancer Research found that Ostarine inhibited the growth of estrogen receptor-positive breast cancer cells in vitro and in vivo. It suggested that Ostarine may have potential as a novel therapy for hormone receptor-positive breast cancer.

Finally, a 2021 study published in the journal PLoS One investigated the effects of Ostarine on breast cancer bone metastasis in mice. The study found that Ostarine reduced the growth of bone metastases and increased bone density in the mice.


6) Ostarine and Cardiovascular Health

The study was a 12-week double-blind, placebo-controlled phase II clinical trial involving 120 healthy elderly men and postmenopausal women. They were given doses of Ostarine (0.1, 0.3, 1, and 3 mg) or a placebo and took it daily for 86 days.

Results showed that the 1- and 3-mg doses of GTx-024 had a decrease in serum triglycerides, with the 3-mg dose approaching statistical significance. Additionally, compared to the placebo, a statistically significant reduction in total cholesterol was seen in the 0.3-, 1-, and 3-mg dose groups. [R]


7) Ostarine and Blood Glucose Levels

A phase 2 clinical trial of Ostarine on healthy elderly men and postmenopausal women for 12 weeks. Subjects were divided into five groups, receiving different doses of the drug or a placebo.

The group receiving 3 mg of Ostarine showed a significant reduction in blood glucose levels and a trend towards a reduction in blood insulin levels. This points to a potential role of Ostarine in the prevention of diabetes, though long-term studies are needed to confirm this. [R]


Frequently Asked Questions

Is Ostarine a steroid?

Ostarine is not a steroid. It is a selective androgen receptor modulator (SARM), which means that it interacts with androgen receptors in the body in a selective way, leading to similar effects to anabolic steroids but with fewer side effects.


What is the half-life of Ostarine?

The half-life of Ostarine, also known as MK-2866, is approximately 24 hours.


Does Ostarine suppress testosterone?

Ostarine has been found to have a mild suppressive effect on testosterone levels, especially at higher doses or with prolonged use. However, the degree of suppression associated with liquid Ostarine is generally much less severe than that seen with traditional anabolic steroids.


Where to Buy Ostarine for Sale?

Research Chems is the best place to buy MK-2866 online.

We have been around since 2023, supplying the highest-quality research compounds money can buy. Our products come with a 100% satisfaction guarantee, fast shipping, and great customer service to turn every customer into a repeat customer.



Multiple clinical trials and preclinical studies have shown that Ostarine MK 2866 may increase lean body mass, improve bone health, and potentially treat certain medical conditions.

However, as with other selective androgen receptor modulators, more research is needed to fully understand its potential benefits and risks.


Disclaimer: The information provided in this article is for medical purposes only and does not constitute medical advice. It is important to consult with a licensed healthcare professional before using any supplement or medication. Additionally, all the products on this website are intended for laboratory and research use only. They are not intended for human or veterinary usage.


There are no reviews yet.

Be the first to review “Ostarine (MK-2866)”

Your email address will not be published. Required fields are marked *

FREE Discount Code!


Enter Your Email for the Discount Code