Ostarine Complete Guide: Benefits, Dosages, Bodybuilding

 »  »  Ostarine Complete Guide: Benefits, Dosages, Bodybuilding

Looking for a reliable muscle-building supplement? Look no further with Ostarine!

Find out how this bodybuilding medication can support you!

  1. What is Ostarine?
  2. How Does Ostarine Work?
  3. Ostarine and Testosterone
  4. Ostarine and Bodybuilding
  5. Ostarine for Women
  6. Benefits of Ostarine
  7. Side Effects of Ostarine
  8. Dosage and Protocols
  9. Cutting and Bulking on Ostarine
  10. FAQ (Frequently Asked Questions)
  11. Conclusion

Ostarine is currently the most well-known and researched selective androgen receptor modulator (SARM) that is readily available on the market.

Because of its selective and specific nature, Ostarine demonstrates a significant level of anabolic activity in the body compared to androgenic activity. To date, the SARM is being heavily used as a treatment for muscular loss (atrophy) and bone wasting illnesses. 

Ostarine’s possible medicinal applications, dosages, side effects, and anecdotal discoveries are all covered in this article. So if you’re serious about where your endless hours in the gym goes, then this wonder-SARM might just do the trick!

What is Ostarine?

Ostarine is a selective androgen receptor modulator also known as Enobosarm, GTx-024 and MK-2866 (SARM). SARMs, such as Ostarine, selectively stimulate androgen receptors, resulting in a substantially higher level of anabolic activity in the body than androgenic activity.

Although testosterone was the first anabolic androgen to be approved for therapeutic use, its versatility has always been constrained by its androgenicity and pharmacokinetic concerns.

The lack of selectivity for muscle tissue over other androgen-affected tissues like the prostate, as well as the fact that it is not orally accessible, are the most significant features. Testosterone has a 2:1 muscle-to-prostate selectivity.

Due to the considerable androgenic activity that would occur at a systemic level during the attempted management of muscle or bone wasting illnesses, Testosterone is completely disqualified in a therapeutic setting for treating women, as well as men in many scenarios. SARMs like Ostarine, for example, show great potential as viable options in this situation.

The ideal anabolic agent would show anabolic selectivity in muscle and bone without suppressing luteinizing hormone (LH), not interact negatively with other steroid receptors in the body, have a high level of oral bioavailability without being 17 alpha-alkylated, and avoid 5-alpha reduction to DHT and aromatization into Estrogen.

SARMs were discovered in 1998, and numerous different compounds were produced by a range of pharmaceutical companies in an attempt to find a viable chemical to address this evident need in the treatment of degenerative diseases.

How Does Ostarine Work?

Ostarine’s favorable selectivity for stimulating increases in muscle tissue and strength relative to androgenic activity in affected tissues means it could be used at low doses, is orally bioavailable, and could potentially avoid some of the negative effects associated with traditional anabolic Steroids converting to 5-reduced androgens in modern medicine, which may increase the risk of benign prostate hyperplasia (male pattern baldness).

It may also be able to completely prevent androgenic side effects in women while still eliciting adequate anabolic activity to compensate for any muscle or bone loss caused by degenerative illness.

While it benefits both men and women, its lack of androgenicity in women makes it a particularly promising anabolic agent. Because even little levels of androgens can produce virilization in women, finding chemicals powerful enough to counteract degenerative diseases without causing adverse effects is particularly difficult. 

Ostarine improves muscle mass and strength while also improving tendon strength, ligament health, bone density, and collagen turnover.

It also has a high bioavailability in the mouth. This makes oral dosing more feasible than intramuscular injection with traditional anabolic steroids (an obviously less practical method of medical intervention) or oral dosing with 17 alpha-alkylated anabolic steroids, which are liver toxic and require a methyl or ethyl group at the C17 position to be orally bioavailable. Ostarine came the closest to passing clinical testing and receiving FDA approval.

Ostarine and Testosterone

In clinical trials, Ostarine has been demonstrated to dramatically lower Sex Hormone-Binding Globulin (SHBG) and serum total testosterone levels in participants given with 1 mg or more. While the suppression of LH and FSH was consistently demonstrated throughout Ostarine’s clinical trials, the inhibition of SHBG was not. However, after comparing anecdotal logs of baseline pre-Ostarine blood work to mid-Ostarine blood work with dosages several times higher than the 0.1 mg, 0.3 mg, 1 mg, 3 mg dosages used in trials (users commonly use Ostarine at upwards of 25 mg per day for several months)

Ostarine and Bodybuilding

While Ostarine can help you achieve your goals, it is not a substitute for steroids (in certain contexts). It does, however, have the ability to equal the anabolic activity provided by modest doses of certain “milder” steroids. When you think about steroids to compare the results to, Anavar and Primobolan come to mind.

Because Ostarine causes a dose-dependent increase in muscle mass in humans, it would be interesting to see where the point of diminishing returns is in terms of lean muscle mass gains. Doses as low as 10-25 mg of Ostarine are commonly compared to 50-100 mg dosages of traditional anabolic androgenic steroids, which is obviously a ridiculous way to compare overall potency.

Many users claimed that Ostarine offered them the extra push they needed to finish their workout with a few more reps. Ostarine is one of the greatest foundational SARMs in terms of stacking. As long as you don’t take Ostarine just before your workout, you may be relatively flexible with how you take it. Modest acne and the potential of mild hair loss are among the possible side effects. However, user reviews indicated that there were little, if any, negative effects. The enhanced likelihood of speedier growth is one of the key advantages of taking Ostarine on a regular basis. For every eight-week cycle, the average user gained three pounds.

Ostarine for Women

Ostarine is safe for women because it lacks significant androgenic effects. To be safe, women should start with a lower dose (10mg per day) and gradually increase to a maximum of 20mg per day. It has also shown promise in the therapy of muscular dystrophy, a condition characterized by genetic muscle loss or weakening. It has also showed signals of improving symptoms of breast cancer, urine incontinence, or loss of bladder control, albeit there is less evidence.

Benefits of Ostarine

  1. Increase the amount of lean muscle mass in your body.

Ostarine has been found in multiple trials to increase muscle mass at doses as low as 1mg per day. MK-2866 and Ligandrol both demonstrated good effects on muscle mass in a recent study from 2020. Another clinical research conducted in 2011 yielded positive effects when MK-2866 was used. The participants in the trial were 120 elderly males who were given either a placebo or 3mg Ostarine. Compared to the placebo group, the last group had a considerable increase in muscle mass with nearly no negative effects.

  1. Enhance your physical abilities

In addition to increasing muscle, most studies revealed an increase in physical performance. Most people who used Ostarine for an 8-12 week cycle experienced a gain in strength as well as better workout performance.

  1. Insulin Resistance & Fat Burning

Ostarine has been recommended by some famous researchers as a possible solution for diabetes or any other metabolic syndrome. MK-2866 helps to improve insulin resistance by lowering blood glucose levels. Ostarine has been reported to aid in fat burning and muscular hardening by some users.

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Side Effects of Ostarine

Good Cholesterol Levels Have Dropped (HDL)

Clinical evidence on this is mixed, with some studies indicating dose-dependent reductions in serum lipids (particularly HDL and LDL) and others showing solely reductions in HDL levels (often known as “good cholesterol”). It is know that Ostarine lowers HDL levels, which is noteworthy given that this is a prevalent side effect of all classical anabolic steroids and other SARMs. Despite SARMs’ capacity to avoid considerable androgenic activity in the body, their effects on lipid profiles appear to be very similar to those of anabolic steroids.

Estrogen Increased Or Estrogen Decreased?

Although Ostarine does not directly aromatize into Estrogen, it can cause an unfavorable balance between Testosterone and Estrogen in the body by suppressing natural Testosterone levels. Furthermore, because Ostarine has such a high affinity for the androgen receptor, it can actually cause a large amount of Testosterone to aromatize into Estrogen that would not have done so otherwise. This can cause an increase in Estrogen levels in the body, which is often misinterpreted as the chemical being laced with prohormones or as an anabolic steroid.

Men’s Alternative Hormone Replacement Therapy Applications

Because Ostarine does not aromatize into Estrogen, it is not a feasible method of hormone replacement treatment for men on its own. The aromatization of Testosterone into Estrogen is required for a range of essential physiological activities in men, as low Estrogen side effects can be just as hazardous to one’s health as high Estrogen adverse effects. In the case of long-term HRT, Ostarine would almost certainly need to be combined with exogenous Estrogen to keep blood serum concentrations in check and fulfill basic physiological tasks that would otherwise be dependent on the body’s natural aromatization of Testosterone to Estrogen.

Dosage and Protocols

Ostarine drew the attention of the bodybuilding industry due to its remarkable pre-clinical profile and obvious prospective benefits in the context of performance enhancement. While dosages of 0.1 mg, 0.3 mg, 1 mg, and 3 mg per day were initially tested, it is less well-known that dosages of 9 mg and 18 mg per day were usually well tolerated by women in a less well-known phase II clinical trial.

Recreational users often develop 5–10 pounds of lean muscle mass, with daily dosages ranging from 10 to 25 mg. These dosages were calculated by recreational users based on anecdotal logs and personal experience, and they are not hard and fast rules that must be followed.

Cutting and Bulking on Ostarine

Ostarine is one of the greatest SARMS for bulking. This well-known SARM is noted for gaining a steady amount of muscle mass while simultaneously losing a large amount of fat. Ostarine has also been examined for its capacity to help cancer patients develop muscle. Because of these characteristics, this option is ideal for any cutting or bulking phase. You can get really spectacular results with Ostarine without changing your training routine, regardless of your diet or caloric intake. This software is suitable for both beginners and pros, and it is simple to integrate into your existing program. During workouts, users of this SARM report a significant improvement in energy and strength.

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How should Ostarine be administered?

MK-2866 was tested in clinical trials using only a few milligrams, and it was found to be efficacious at that dosage. Women tolerated dosages as high as 18 mg per day in a phase II clinical trial that was recently reported. Typically, the community agrees that a daily dose of 25 mg for males and 10-12.5 mg for women is the sweet spot for minimizing side effects and maximizing user benefit. 

Will Ostarine have an impact on fertility?

No, it isn’t going to happen. AT WORST, it’s moderately suppressive, but only for a short time (unless you don’t PCT effectively, in which case recovery will take longer). MK-2866 does not have a long-term effect on fertility.

Is Ostarine suitable for usage all year?

No, cycling Ostarine is a much better option. While someone might probably get away with cycles longer than 8, 10, or even 12 weeks without experiencing side effects, the 8-week mark is usually where diminishing returns begin to appear, and the risk of adverse effects increases.

When it comes to Ostarine cycles, how long should they last?

The length of a cycle is determined by a variety of individual characteristics; however, in general, a regular MK-2866 cycle lasts approximately 8 weeks, after which PCT is initiated for 4 weeks.

After an Ostarine cycle, how long should you rest?

After PCT, the duration of time to wait before commencing another suppressive anabolic compound cycle should be determined by a range of criteria and will differ from person to person. Many in the community encourage the general rule of thumb that time on equals time off; however, it makes more sense to wait until a PCT phase is completed before making an assessment based on your blood work and current state of health. 

What supplements should be taken in conjunction with Ostarine to aid recovery?

I wouldn’t hesitate to recommend D-Aspartic Acid as a supplement during PCT alongside Arimistane (if that is the PCT you are using) (DAA). It’s not 100% necessary, but it will help boost your testosterone, which, when combined with the Arimistane, is an excellent combination for going back to 100 percent as quickly as possible while still keeping all of your previous gains.

Is Ostarine associated with testicular shrinkage?

Because the peptide has been demonstrated to be somewhat suppressive in certain persons, it has the potential to reduce the testicles while in the system. However, once the MK-2866 cycle and subsequent PCT are done, they should swiftly return to full size.


Ostarine is a promising SARM with a lot of potential. It is now mostly utilized to increase physical performance by sportsmen and bodybuilders. The peptide has been demonstrated to work and has minor side effects when compared to other substances, according to researchers. After more research and medical reviews, Ostarine was discovered to be a fantastic solution for shedding unwanted body fat, growing cutting-edge muscles, and even increasing the body’s vitality and endurance levels. Because it is a SARM, it is not dangerous to consume in sufficient amounts.

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The information provided above is not intended to substitute professional medical advice, diagnosis, or treatment. Always seek your physician’s advice or another qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have seen or read. We bear no responsibility or liability for your use of any compound.