Thoroughbred Labs

Thoroughbred Labs TRI-Stack (MK-677 + RAD-140 + LGD-4033) (60 Caps)

Thoroughbred Labs TRI-Stack MK-677+RAD-140+LGD-4033
Thoroughbred Labs TRI-Stack Ingredients
Thoroughbred Labs MK-677 Ibutamoren Test Certificate
Thoroughbred Labs RAD-140 Testolone Test Certificate
Thoroughbred Labs LGD-4033 Ligandrol Test Certificate
Thoroughbred Labs
Thoroughbred Labs

Thoroughbred Labs TRI-Stack (MK-677 + RAD-140 + LGD-4033) (60 Caps)

Thoroughbred Labs TRI-Stack

MK-677 10mg | RAD-140 10mg | LGD-4033 4.5mg | 60 Capsules

  • Advanced Triple SARM Stack
  • Rapid Increases in Muscle Size & Strength
  • Faster Recovery From Training & Exercise
  • Increases Growth Hormone & IGF-1
  • Highly Anabolic
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Thoroughbred Labs TRI-Stack MK-677+RAD-140+LGD-4033

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Thoroughbred Labs TRI-Stack | MK-677 + RAD-140 + LGD-4033 SARM Stack | 60 Capsules

Thoroughbred Labs TRI-Stack is a triple SARM stack of MK-677, RAD-140 and LGD-4033. These are 3 of the best SARMs for building muscle size and strength.

Both RAD-140 and LGD-4033 are considered to be two of the strongest SARMs for gaining muscle mass and increasing strength very quickly because they produce high anabolic activity within muscle tissue. MK-677 is best known for its ability to increase growth hormone (GH) and IGF-1 (Insulin-like Growth Factor 1) resulting in even greater gains in muscle size and strength.

Thoroughbred Labs TRI-Stack combines these 3 powerful compounds together which will rapidly increase muscle size, strength and power, speed up muscle recovery and enhance muscular stamina and endurance during training or exercise.

MK-677 (Ibutamoren)

MK-677 (also known as Ibutamoren) is one of the most commonly used growth hormone secretogogues on the market, with athletes, bodybuilders and fitness fanatics using it around the world.

The biggest advantage of 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

RAD-140 (Testolone)

RAD-140 (also known as Testolone) 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. 

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 and Stamina
  • More Anabolic than Testosterone
  • 90:1 Anabolic to Androgenic Ratio
  • No Androgenic Side Effects

LGD-4033 (Ligandrol)

Ligandrol (also known as LGD-4033) was originally studied for medical purposes as a preventive measure against increased muscle catabolism. It belongs to the group of selective androgen receptor modulators (SARMs) showing a significant anabolic effect. For those looking to maximise muscle mass, strength and power, Ligandrol is a great choice of SARM.

Next to RAD-140, Ligandrol is the strongest SARM available on the market. It’s a product offering high anabolic potential with limited risk of health impacts. Due to its effectiveness in stimulating muscles for mass building, it became popular in advanced sports supplementation.

  • Rapid Increases in Muscle Size & Strength
  • Increases Vascularity
  • Decreases Muscle Soreness
  • Increases Protein Synthesis
  • Increases Healing & Recovery
  • A Drop in Bodyfat

Why Choose Thoroughbred Labs MK677 + RAD140 + LGD4033 SARM TRI-Stack?

At Thoroughbred Labs, quality is our priority. Our MK677, RAD140 and LGD are all 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 TRI-Stack Key Benefits

MK-677 10mg | RAD-140 10mg | LGD-4033 4.5mg | 60 Capsules

  • Advanced Triple SARM Stack
  • Rapid Increases in Muscle Size & Strength
  • Faster Recovery From Training & Exercise
  • Increases Growth Hormone & IGF-1
  • Highly Anabolic

Additional Information

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

Category: RAD-140 (Testolone), MK-677 (Ibutamoren), LGD-4033 (Ligandrol), SARM Stacks, SARMs for Bulking.

How to use Thoroughbred Labs TRI-Stack

1-2 capsules daily.

Thoroughbred Labs TRI-Stack cycle length

RAD-140, MK-677 and LGD-4033 are commonly stacked and cycled together for 6-8 weeks.

Thoroughbred Labs TRI-Stack cycle support advice

Organ Support

Using an Organ Support supplement alongside the use of Thoroughbred Labs TRI-Stack 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 and LGD-4033 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 TRI-Stack 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 TRI-Stack (regarding RAD-140 and LGD-4033) 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 TRI-Stack Nutritional Information

Supplement FactsPer 1 Capsule
RAD-140 (Testolone)10mg
MK-677 (Ibutamoren)10mg
LGD-4033 (Ligandrol)4.5mg


MK-677 (Ibutamoren), RAD-140 (Testolone), LGD-4033 (Ligandrol), 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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