Ostarine and Cardarine Stack [SARMs Guide]


If it is time for you to start “cutting” weight and you are a fan of increasing focus, then an Ostarine and Cardarine stack is for you.

Ostarine and Cardarine are two SARMs (Selective Androgen Receptor Modulators) that work together synergistically to burn more body fat and improve focus. Ostarine has been shown to boost energy levels, while Cardarine helps speed up the processes of burning calories allowing your body to consume fat at a higher rate.

Combined, these ingredients can provide a powerful combination for bodybuilders who are “cutting”.

Ostarine and Cardarine Stack Overview

At first glance, Ostarine and Cardarine may seem like an odd couple. Ostarine is more famous for its ability to bulk you up, while Cardarine is better known as a “cutting” SARM. But the two work pretty well together.

Taken correctly, the two SARMs address two sides of the physique improvement coin and can make your muscle gains faster and more visually impressive.

Ostarine MK-2866

Best Ostarine Pick
AC-262 (Accadrine) - Ostarine / MK2866 alternative

Other Names: MK2866, MK-2866, MK 2866 Ostarine, Ostamuscle, Enobosarm, GTx-024, GTx024 Ostarine, S-22, S22, S 22, GTx-024; MK-2866; Ostarine; S-22

Total Amount of Active Ingredient: 600 mg

Concentration: 10 mg per capsule

Quantity: 60 capsules

Shelf Life: 36 months

Packaging: Bottled

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Ostarine MK-2866 is a popular SARM or selective androgen receptor modulator developed primarily to prevent muscle wasting diseases and bone mass loss. This SARM targeted patients with cancer and other degenerative conditions to slow the damage they can put on the body.

Ostarine MK-2866

Ostarnine binds to a person’s androgen receptors allowing muscle cells to grow rapidly. Due to these androgenic effects, Ostrarine MK-2866 has become well-liked in the bodybuilding community in recent years.

Cardarine GW-501516

Best Cardarine Pick
Cardarine GW 501516 SARMs

Other Names: Endurobol, GSK 516, GW1516, GW 501516, GW 501,516, Cardarine

Total amount of active ingredient: 600 mg

Concentration: 10 mg per capsule

Quantity: 60 capsules

Shelf Life: 36 months

Packaging: Bottle

  • Fast Shipping
  • 100% Purity US Lab Tested
  • Money Back Guarantee
Get Pricing

Cardarine GW-501516 is a phenethylpyrazoline that is technically not a class of SARMs but a Peroxisome Proliferator-Activated Receptor agonist. Cardarine is acting like a SARM in this stack for all intents and purposes.

Cardarine is an effective fat-burning agent because it stimulates thermogenesis, which is the generation of heat to force the body to burn calories.

Cardarine GW-501516

This makes it much easier for humans to get into a calorie or caloric deficit. Anyone considering an Ostarine and Cararine stack should know that being in a caloric deficit is necessary to lose body fat to cut weight.

Adding Cardarine GW-50156 in addition to a potent lean muscle builder like Ostarine creates the perfect mix of muscle growth and fat loss.

Ostarine and Cardarine Stack Benefits

The Ostarine and Cardarine SARM stack is a tried and true combination to get the results you want in the gym.

The most common benefits seen both anecdotally and in animal studies of an Ostarine and Cardarine stack include:

  • Activated androgen receptors
  • Increases overall energy
  • Boosts workout performance to increase progressive muscle overload
  • Aids in body recomp.
  • Speeds up average recovery times for athletes
  • It puts you into a further caloric deficit
  • Legal to buy online without a prescription in the US
  • It does not cause opposing hormone effects
  • Taken orally versus intravenously
  • Pulls out and removes water weight
  • No energy crash
  • Increases muscle growth
  • Burns fat at a higher than average rate
  • Increased vascularity

While there are not a ton of drawbacks to this particular SARM stack, there have been a few noted side effects that we will expand on below. As with any selective androgen receptor modulator, it is always best to monitor your blood work and do intensive research before starting a cycle.

Ostarine and Cardarine Stack Dosage

Ostarine is one of the most well-studied and tested SARMs for maintaining and increasing lean muscle mass. There have been noted side effects; however, we will go into more detail below.

Ostarine and Cardarine Stack Dosage

The recommended dosage for Ostarine is most often:

  • 10mg Once per Day

At this dose, the adverse side effects are reduced while still achieving your desired results in the gym.

Cardarine is most often used for “cutting” body fat.

For this use case, you will want to take Cardarine GW-50156 at the following dosage:

  • 10mg Once per Day

This dose of Cardarine is low enough not to lower testosterone levels and maintain lean muscle mass during a cut.

The dose is still high enough to lose body fat quicker than usual.

While these are solid starting doses, more experienced users may want to slowly increase the amount of mg taken per day as time progresses.

Often it is best to start at a lower dose first to see how your body reacts and then adjust from there.

Cardarine Ostarine Stack Side Effects

Awareness of potential side effects when taking any SARM or PED(performance enhancing drug) is critical to keeping your body healthy long-term.

Cardarine Ostarine Stack Side Effects

Cardarine, in some smaller studies, appears not to cause any significant side effects.

Some minor and anecdotal studies have stated that Cardarine may have cancer-causing components.

Cardarine causing cancer has never been proven or backed by any scientifically sound information.

Ostarine has some potentially dangerous side effects, but with the lack of in-depth studies, it is hard to say what amount they come into play.

Ostarine is known to cause the following side effects:

  • Possible testosterone suppression
  • Studied liver toxicity
  • Hair loss
  • Increase in DHT production

Cardarine Ostarine stack PCT

Having a game plan for PCT or post cycle therapy after taking a Cardarine/Ostarine stack will ensure your body is not damaged physically or hormonal in the future.

Cardarine Ostarine stack PCT

Nolvadex is the most popular PCT for most SARMs and is often taken at the following dosage:

  • 20mg per day

Nolvadex is an Estrogen modulator that can help rebalance your hormones after they have been temporarily altered by the Cardarine and Ostarine stack.

Clomid is also a very popular PCT that you can take at the following dosage:

  • 50mg per day

Clomid is an anti-estrogen drug that helps to increase your natural testosterone production.

Nolvadex and Clomid are the two most popular drugs for PCT.

There are many others, but you should consult your doctor, who can assist with post cycle therapy prescriptions.

Frequently Asked Questions

Ostarine What is the recommended dosage for Cardarine Ostarine Stack?

There is no specific dosage for this stack, as it depends on your goals. Start with a low dose and work your way up as needed. Always consult with a doctor before starting any new supplement or SARM stack.

The first week on Ostarine and Cardarine?

You may not notice any significant changes during the first week of your stack. You should see your hunger slightly reduced and feel recovered faster post-workout.

Ostarine Cardarine stack, what to expect? 

You should expect to add lean muscle to your frame while also losing body fat. Ostarine is one of the most effective SARMs for increasing lean muscle mass, while Cardarine is very effective at reducing body fat.

When can I expect results from my Ostarine and Cardarine stack?

Most users see results within the first few weeks of starting their Ostarine and Cardarine, but it may take up to one month to see significant results.

Can I stack Ostarine and Cardarine with other supplements?

Yes, it would be best if you continued with essential supplements like protein and creatine and a daily vitamin to ensure you receive all your required micronutrients.

Are there alternatives to this stack for boosting testosterone?

Yes, we suggest looking into online TRT clinics that can oversee and prescribe testosterone replacement therapy to help you with your fitness and health goals.


The Ostarine and Cardarine stack is a very popular SARMs stack for those looking to add lean muscle mass and lose body fat.

This stack is very effective and has minimal side effects when used responsibly.

Ostarine will cause liver damage due to toxicity at higher levels. Be sure to have your blood levels monitored by doctors while using this stack.

– Note

As with any supplement or SARM, it is important to consult with a doctor before starting any new supplementation regimen.

Have you tried an Ostarine and Cardarine stack? How effective did you find this combination, and did you see any major side effects?

Please leave a comment letting us know in the comments below.





Dr. Ian Nellis MD
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Dr. Ian Nellis MD

Dr. Ian Nellis is a medical doctor with over ten years of experience in the health care industry. Dr. Nellis is passionate about sports nutrition and helping his patients live healthy and fulfilling lives. He lives and practices medicine in Denver, CO, with his wife and beloved Mastiff Leonardo.

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