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MK2866 10 Ostarine


While Ostarine was primarily developed for treating muscle wasting and osteoporosis, it also retains nitrogen and strengthens joints, making it a versatile compound for various health benefits.

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MK2866 10 Ostarine

Known names: MK2866 10, Ostarine.


Also recognized as MK 2866, Enobasarm, or GTX-024, Ostarine has gained significant popularity as a selective androgen receptor modulator (SARM). Originally developed for preventing muscle wasting and treating osteoporosis, Ostarine is now widely used by athletes as a performance-enhancing supplement to gain a competitive edge.

One of the advantages of Ostarine is its suitability for use by both males and females since it does not cause virilization problems in women.

Ostarine selectively binds to androgen receptors, similar to anabolic steroids, but with significantly fewer side effects due to its selective nature.

A 12-week double-blind, placebo-controlled Phase II clinical trial demonstrated that Ostarine increased lean muscle mass and improved physical function without the negative side effects associated with testosterone or other anabolic steroids.

While Ostarine was primarily developed for treating muscle wasting and osteoporosis, it also retains nitrogen and strengthens joints, making it a versatile compound for various health benefits.

Ostarine functions similarly to anabolic steroids but with significantly fewer side effects and minimal suppression. Blood work has shown that Ostarine only suppresses the hypothalamic-pituitary-testicular axis (HPTA) by 10-20%, compared to the 95% suppression seen with anabolic steroids. This makes Ostarine suitable not only for use during cycles but also for post-cycle therapy (PCT) and bridging phases. Its versatility makes it highly beneficial for athletes.

Women can safely use Ostarine as an alternative to anabolic steroids since it does not cause masculine traits such as facial hair growth or an enlarged clitoris.

Furthermore, Ostarine is popular among powerlifters and bodybuilders due to its ability to strengthen bones and joints.

Another reason for Ostarine’s popularity among bodybuilders and powerlifters is its noticeable ability to strengthen bones and joints. This is crucial for athletes who often encounter nagging injuries such as forearm or shin splints, neck pain, joint pain, and back pain. Ostarine increases tendon strength, ligament strength, and bone density, even at doses below 20 milligrams (mg) per day. It not only covers up the problem but also helps fix it, providing healing effects for inflamed joints.

All SARMs, including Ostarine, were banned by the World Anti-Doping Agency (WADA) in 2008. However, some athletes, like Nikita Novikov, a Russian champion cyclist, have been suspended for using Ostarine.

Depending on the objectives, Ostarine can be stacked in different ways:

  1. Endurance: Stack Ostarine with Cardarine for increased endurance before workouts or runs.
  2. Anabolic Steroid Stack: Add Ostarine to an existing anabolic steroid cycle to increase lean muscle mass and strength without additional side effects.
  3. During PCT or Bridge: Ostarine is minimally suppressive at 25 mg per day for 4 weeks or less, making it suitable for post-cycle therapy or bridging phases to maintain strength and muscle.
  4. SARMs Triple Stack: For recomping (building muscle mass while losing fat), Ostarine stacks well with Andarine and Cardarine.

Ostarine is not liver toxic and does not cause blood pressure or organ strain. However, some users have reported gynecomastia when using high dosages for extended periods. Having an aromatase inhibitor (AI) on hand can be beneficial in such cases.

While Ostarine is non-suppressive when used for 4 weeks or less at proper dosages, those running higher dosages or longer cycles should consider running a PCT.


Ostarine has a robust half-life of 24 hours, requiring only once-daily dosage.

The liquid form should be shaken, squirted into the mouth, and swallowed immediately, followed by juice or water. It is important not to hold Ostarine under the tongue or mix it in a cup to prevent loss of the compound.

Typical Ostarine dosages range from 12.5 to 50 mg per day. Lower dosages are suitable for those seeking healing benefits, while higher dosages are preferred for recomping and muscle mass gain.


1 Box of 2x 25Tablets, 10mg per Tablet.


Keep the product stored below 30°C.
Protect it from light exposure and avoid freezing.

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