Thoroughbred Labs

Thoroughbred Labs MK-677 + RAD-140 Stack (60 Caps)

Thoroughbred Labs MK-677 + RAD-140 Stack
Thoroughbred Labs MK-677 + RAD-140 Ingredients
Thoroughbred Labs MK-677 Test Certificate
Thoroughbred Labs RAD-140 Test Certificate
Thoroughbred Labs
Thoroughbred Labs

Thoroughbred Labs MK-677 + RAD-140 Stack (60 Caps)

Thoroughbred Labs MK-677 + RAD-140

MK-677 12.5mg | RAD-140 10mg | 60 Capsules 

  • Popular MK-677 & RAD-140 SARM Stack
  • 2 of the Best SARMs for Lean Bulking
  • Quick Gains in Muscle Size & Strength
  • Increases HGH & IGF-1
  • More Anabolic than Testosterone
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Thoroughbred Labs MK-677 + RAD-140 Stack

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Thoroughbred Labs MK-677 + RAD-140 SARM Stack | 60 Capsules

Thoroughbred Labs MK-677 + RAD-140 is a superior SARM stack combining the benefits of two of the best known SARMs (selective androgen receptor modulators), MK-677 and RAD-140.

MK-677 (Ibutamoren)

MK-677, also known as Ibutamoren, is a growth hormone secretagogue which increases human growth hormone (HGH) and Insulin-like Growth Factor 1 (IGF-1).

The biggest advantage of MK-677 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. 

The increase of both growth hormone and IGF-1 will increase muscle size and strength, and reduce bodyfat. Other benefits include improved sleep quality and overall well-being, faster recovery from training and exercise and also helps to heal joints and ligaments faster.

  • 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

RAD-140 (Testolone)

RAD-140, also known as testolone is proven to be more anabolic than testosterone with a powerful 90:1 anabolic to androgenic ratio. RAD-140 has been developed to increase muscular gains and strength as well as enhance speed, stamina and endurance during workouts.

Next to Ligandrol, RAD-140 is the strongest SARM available on the market. It allows the body to maximize the pace of anabolic transformations. Expect huge increases in muscle size, strength, endurance and stamina.

It accelerates recovery processes, thanks to which it allows athletes to increase training intensity. RAD-140 is a good choice for people looking for intensive support in building lean muscle mass, but who have not decided on using anabolic-androgen steroids. Its effectiveness is comparable to the use of testosterone.

  • Huge Increases in Lean Muscle Mass
  • Enhanced Strength & Explosive Power 
  • Improved Muscular Endurance & Stamina
  • More Anabolic than Testosterone
  • 90:1 Anabolic to Androgenic Ratio
  • No Androgenic Side Effects

Why Choose Thoroughbred Labs MK-677 + RAD-140 SARM Stack?

At Thoroughbred Labs, quality is our priority. Our MK-677 and RAD-140 are sourced from trusted suppliers and rigorously tested to meet the highest industry standards, and whilst buying SARMs direct in the UK from us, you can ensure you're getting the best pricing and quality combination on the market. With our product, you can expect:


We deliver a pure and potent formula, free from contaminants and fillers.


Backed by positive reviews and customer testimonials, our product is market leading.

Thoroughbred Labs MK-677 + RAD-140 Key Benefits

MK-677 12.5mg | RAD-140 10mg | 60 Capsules 

  • Popular MK-677 & RAD-140 SARM Stack
  • 2 of the Best SARMs for Lean Bulking
  • Quick Gains in Muscle Size & Strength
  • Increases HGH & IGF-1
  • More Anabolic than Testosterone

Additional Information

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

Category: RAD-140 (Testolone), MK-677 (Ibutamoren), SARM Stacks, SARMs for Bulking.

How to use Thoroughbred Labs MK-677 + RAD-140

1-2 capsules daily.

Thoroughbred Labs MK-677 + RAD-140 cycle length

MK-677 & RAD-140 are commonly stacked and cycled together for 6-8 weeks.

Thoroughbred Labs MK-677 + RAD-140 cycle support advice

Organ Support

Using an Organ Support supplement alongside the use of Thoroughbred Labs MK-677 + RAD-140 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 RAD-140 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 Thoroughbred Labs MK-677 + RAD-140 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 Thoroughbred Labs MK-677 + RAD-140 (regarding RAD-140) 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.

Thoroughbred Labs MK-677 + RAD-140 Nutritional Information

Supplement Facts
Per 1 Capsule
MK-677 (Ibutamoren)
RAD-140 (Testolone)10mg


MK-677 (Ibutamoren), RAD-140 (Testolone), Organic Rice Flour, Magnesium Stearate, Hide Vegetarian Capsules (100% BSE Free).

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 in the United Kingdom for Thoroughbred Labs.


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