SynthLab M-M (Ostarine + MK-677) Stack (60 Caps)

SynthLab M-M

SynthLab M-M (Ostarine + MK-677) Stack (60 Caps)

SynthLab M-M

Ostarine 20mg | MK-677 20mg | 60 Capsules

  • Increases Growth Hormone & IGF-1
  • Increases Quality Lean Muscle & Strength
  • Increases Metabolic Rate & Fat Loss
  • Increases Healing & Recovery
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SynthLab M-M

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SynthLab M-M | Ostarine + MK-677 SARM Stack | 60 Capsules

SynthLab M-M is a double SARM stack of Ostarine (MK-2866) and MK-677 (Ibutamoren). A popular SARM combination for both beginners and advanced users who want to lose bodyfat and gain quality lean muscle tissue and strength.

The combination of these 2 SARMs together will increase the users metabolic rate, growth hormone and IGF-1 levels, and because of this, it will help to burn bodyfat at an accelerated rate whilst in a calorie deficit.

Both Ostarine and MK-677 are also a popular choice for females who want to achieve a lean and toned looking physique with very minimal side effects.

SynthLab M-M Key Benefits

Ostarine (MK-2866)

Ostarine (also known as MK-2866) is a selective androgen receptor modulator (SARM) developed for the treatment of conditions such as muscle wasting and osteoporosis. Ostarine works by selectively binding to the androgen receptors in your muscles, meaning that they can help you to achieve accelerated muscle growth.

The compound distinctively increases the rate of changes in the biosynthesis of muscle proteins or collagen production. Ostarine MK-2866 binds to the same proteins as testosterone and DHT, but without significant androgenic effect. Thanks to which, it is much less harmful to health.

  • Build Muscle & Lose Bodyfat Simultaneously
  • Strong Anabolic Effect & Low Androgenic Potential
  • Faster Recovery from Training & Exercise
  • Minimum to ZERO Water Retention
  • Heals Joints & Ligaments Faster
  • Helps to Increase Bone Density

MK-677 (Ibutamoren)

The biggest advantage of MK-677 (also known as Ibutamoren) is that it increases lean body mass while reducing total fat mass or visceral fat. MK-677 mimics ghrelin, a chemical which helps to increase the levels of growth hormone (GH, somatotropin) and insulin-like growth factor 1 (IGF-1) and also reduces the level of cortisol in the body. 

  • Increases Growth Hormone & IGF-1
  • Increased Muscle Mass & Strength
  • Reduced Fat Mass & Increased Appetite
  • Increase Bone Mineral Density
  • Improved Sleep Quality & Wellbeing
  • Lowers Cortisol (Stress Hormone) Levels
  • Healing of Tendons, Joints and Ligaments
  • No PCT Required

Additional Information

Size60 Capsules
Recommended Cycle Length6-8 Weeks
Organ Support RecommendedYes
Post Cycle Therapy (PCT) RecommendedYes

Category: MK-677 (Ibutamoren), Ostarine (MK-2866), SARMs for Cutting, SARM Stacks.

How to use SynthLab M-M

1-2 capsules daily.

SynthLab M-M cycle length

Ostarine and MK-677 are commonly stacked and cycled together for 6-8 weeks.

SynthLab M-M cycle support advice

Organ Support

Using an Organ Support supplement alongside the use of SynthLab M-M will help to support organ and cardiovascular health whilst on cycle, helping to keep any potential side effects to a minimum.

Post Cycle Therapy

MK-677 is non-hormonal (does not suppress testosterone), however Ostarine will gradually reduce natural testosterone levels over time. The level of suppression will depend on the length of the cycle and dosage taken. Regardless of cycle length, PCT is highly advised.

The use of a Post Cycle Therapy supplement will assist in restoring and increasing natural testosterone production and to help maintain gains in muscle size and strength once the cycle has ended.

PCT should begin 1 day after your M-M cycle has ended and usually lasts for 30 days.

Anti Estrogen

As natural testosterone levels begin to decrease, this will cause estrogen to increase. Higher estrogen levels can cause symptoms such as water retention, gynecomastia, fat gain, low mood and reduced sex drive.

Using an Anti Estrogen supplement alongside the use of SynthLab M-M will help to block and lower estrogen. Helping to reduce and eliminate these symptoms whilst on cycle.

Hormone Support

Once your cycle has ended and in between cycles, the use of Hormone Support supplements will help to raise and increase natural testosterone production. Higher testosterone levels = more muscle and strength gained and maintained.

What does SynthLab M-M stack well with?

If you are in a cutting phase, M-M stacks well with RAD-140 and YK-11. This will help the user gain even more muscle and strength whilst in a calorie deficit.

The addition of Cardarine will also help to accelerate fat loss, giving the user a much harder and leaner look.

SynthLab M-M Nutritional Information

Supplement Facts
Per 1 CapsulePer Serving (2 Capsules)
Ostarine (MK-2866)10mg20mg
MK-677 (Ibutamoren)10mg20mg


Ostarine (MK-2866), MK-677 (Ibutamoren), Rice Flour, Gelatin, Magnesium Stearate, Stearic Acid, Silica.

Safety Advice

SARMs (Selective Androgen Receptor Modulators) are for research purposes only and NOT intended for human consumption.

Check with a qualified health professional before using this product if you are under the age of 18, pregnant or nursing a baby or if you have any known or suspected health conditions or are taking any prescription or OTC medications. Do not exceed the recommended use. Store this product in a cool dry place. Keep out of the reach of children. This product is not intended to cure or prevent any disease or illness. This product should not be used as a substitute for a varied, balanced diet.


Manufactured exclusively for SynthLab.


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