RAD-140 | Testolone

What is RAD-140 (Testolone)

RAD-140, commonly known as Testolone, is one of the most powerful selective androgen receptor modulators (SARMs) researched for its anabolic effects on muscle and bone tissue. Developed as a safer alternative to anabolic steroids, RAD-140 is highly sought after by athletes and bodybuilders aiming to gain lean muscle, increase strength, and improve physical performance—without the typical side effects associated with testosterone. It binds with high affinity to androgen receptors, specifically in muscle and skeletal tissue.

Benefits of RAD-140 (Testolone)

- Supports rapid lean muscle development and strength gains  
- Enhances endurance, stamina, and power output during workouts  
- Improves recovery speed and reduces muscle fatigue  
- Helps preserve muscle during cutting or calorie deficits  
- May promote brain cell protection and cognitive support  

How to Use RAD-140 (Testolone)

Previous Research Dosages Used: Research typically uses RAD-140 at 10mg to 30mg daily in 8–12 week cycles. These protocols aim to evaluate its effectiveness in building muscle, improving recovery, and enhancing athletic output. Some studies vary dosages based on whether the goal is bulking or cutting.

Frequently Asked Questions

1. Is RAD-140 suppressive to natural testosterone? 
Mild if anything. RAD-140 may cause mild to moderate testosterone suppression. A post-cycle therapy (PCT) is commonly used after research cycles to help restore hormonal balance.

2. How long does it take to see results from RAD-140? 
Noticeable improvements in strength and muscle fullness are typically observed within 23 weeks. Maximal results are often seen toward the end of the 8–12 week cycle.

3. Can RAD-140 be stacked with other SARMs?
Yes, RAD-140 is frequently stacked with MK-677, LGD-4033, or S-23 for enhanced lean muscle gains and performance. Stacking depends on the research goal.

4. Does RAD-140 cause estrogen-related side effects?
RAD-140 does not aromatize into estrogen, but suppression of natural testosterone may cause hormonal imbalance. Monitoring during and after cycles is advised.

5. Is RAD-140 suitable for cutting or bulking? 
Both. RAD-140 is highly versatile—it can support lean bulking phases due to its anabolic properties and also help retain muscle during fat-loss (cutting) cycles.