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What is S-23?

by Oliver Barrett 14 Jun 2024


Selective Androgen Receptor Modulators (SARMs) have revolutionized the fitness and bodybuilding landscape, providing a safer and more targeted alternative to traditional anabolic steroids. Among these, S-23 stands out for its potency and effectiveness. This blog post will explore what S-23 is, how it works, its benefits, potential side effects, and best practices for its use.

What is S-23?

S-23 is a potent non-steroidal SARM developed to increase lean muscle mass, enhance strength, and aid in fat loss. Known for its powerful anabolic effects, S-23 is often compared to traditional anabolic steroids but with a significantly reduced risk of side effects. It binds selectively to androgen receptors in muscle and bone tissues, stimulating anabolic activity and promoting muscle growth.

How Does S-23 Work?

S-23 works by selectively binding to androgen receptors, particularly in muscle and bone tissues. This selective action promotes protein synthesis and muscle growth while inhibiting the activity of myostatin, a protein that limits muscle growth. Unlike anabolic steroids, S-23 does not convert to estrogen, thereby minimizing the risk of estrogen-related side effects.

Benefits of S-23

  1. Enhanced Muscle Growth: S-23 is highly effective at promoting significant muscle hypertrophy, making it ideal for bulking cycles.
  2. Increased Strength: Users report substantial increases in strength, which can improve performance in various athletic and fitness pursuits.
  3. Fat Loss: By preserving lean muscle mass during caloric deficits, S-23 aids in fat loss and helps achieve a more defined physique.
  4. Improved Endurance: S-23 can enhance endurance and stamina, allowing for longer and more intense workouts.
  5. Bone Health: Like other SARMs, S-23 has positive effects on bone density, which can help prevent osteoporosis and fractures.

Potential Side Effects

While S-23 is generally considered safer than anabolic steroids, it is not without risks. Some potential side effects include:

  1. Testosterone Suppression: S-23 can cause significant suppression of natural testosterone production, particularly at higher doses and prolonged use.
  2. Increased Aggression: Some users report increased aggression and irritability during their S-23 cycle.
  3. Hair Loss: Due to its potent androgenic effects, S-23 may contribute to hair loss in individuals predisposed to male pattern baldness.
  4. Liver Toxicity: Although rare, prolonged use of high doses can strain the liver.
  5. Night Sweats: Some users experience night sweats and hot flashes while using S-23.

Best Practices for Using S-23

  1. Dosage: Typical dosages range from 10-30 mg per day. Beginners should start at the lower end to assess tolerance and response.
  2. Cycle Length: S-23 cycles typically last 6-8 weeks. Prolonged use can increase the risk of side effects.
  3. Post Cycle Therapy (PCT): A robust PCT is essential after completing an S-23 cycle to help restore natural testosterone levels. Common PCT protocols include Nolvadex or Clomid for 4-6 weeks.
  4. Diet and Training: To maximize the benefits of S-23, pair it with a balanced diet rich in protein and a structured workout regimen.
  5. Monitoring: Regular blood tests are recommended to monitor hormone levels and liver health, ensuring safe use of S-23.


S-23 offers a potent solution for those looking to achieve significant muscle growth, strength gains, and fat loss without the severe side effects associated with anabolic steroids. However, responsible use and adherence to best practices are crucial to minimize risks. Always consult with a healthcare professional before starting any new supplement regimen.

Ready to elevate your fitness journey with S-23? Explore our range of high-quality SARMs and start achieving your goals today. Don't forget to subscribe to our newsletter for the latest updates, tips, and exclusive offers!

Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before starting any new supplement or fitness program.

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