S-23 Liquid – 50mcg/ml x 30ml

S-23 is a selective androgen receptor modulator (SARM) investigated for its strong anabolic properties, suppression of testosterone, and effects on lean muscle growth. This vial contains 30ml of liquid solution at 50 micrograms per milliliter, supplied for laboratory research use.

Product Profile

• Compound: S-23

• Class: Non-steroidal selective androgen receptor modulator (SARM)

• Concentration: 50mcg/ml

• Volume: 30ml per vial

• Form: Liquid solution

• Category: Investigational anabolic agent

• Application: Laboratory and research use only

Mechanism of Action

S-23 binds to androgen receptors in skeletal muscle and bone tissue, triggering transcriptional changes that enhance protein synthesis.

• Exhibits high binding affinity (Kd ≈ 1.7 nM) compared to other SARMs.

• Promotes lean muscle hypertrophy and strength development.

• Causes dose-dependent suppression of luteinizing hormone (LH) and follicle-stimulating hormone (FSH), leading to reduced endogenous testosterone in research models.

• Investigated as a potential male contraceptive due to consistent suppression of spermatogenesis.

Research Applications

1. Muscle Growth Studies

   • Increased lean body mass in rodent models.

   • Strength improvements during controlled resistance protocols.

2. Hormonal Suppression Models

   • Reliable reduction in serum testosterone at research doses.

   • Studied as a candidate for reversible contraception.

3. Body Composition Trials

   • Improved muscle-to-fat ratio.

   • Synergistic effects when combined with caloric restriction in animal studies.

4. Bone Density Investigations

   • S-23’s androgen receptor activity supports skeletal research into bone strength and density.

Observed Outcomes

• Muscle hypertrophy with increased nitrogen retention.

• Reduction in fat mass by up to 15% in caloric restriction studies.

• Testosterone suppression reversible after compound withdrawal.

• Potential as a stronger anabolic agent compared to other SARMs like LGD-4033.

Handling and Storage

• Store sealed vials at room temperature in a dry, light-protected environment.

• Shake solution gently before withdrawal.

• Maintain sterile technique when dosing for laboratory applications.

S-23 Research FAQs

1. What is the concentration of S-23 in this vial?
The solution contains 50 micrograms per milliliter with a total volume of 30ml.

2. Why is S-23 considered stronger than other SARMs?
S-23 binds androgen receptors with higher affinity (Kd ≈ 1.7 nM) than most SARMs, producing stronger anabolic effects in research models.

3. What is the most studied effect of S-23?
The most studied effect is increased lean muscle mass combined with reliable suppression of natural testosterone production.

4. How does S-23 affect fat loss in studies?
Animal studies report up to 15% reduction in fat mass when paired with controlled calorie intake.

5. What makes S-23 unique compared to LGD-4033 or RAD-140?
Unlike LGD-4033 or RAD-140, S-23 shows more complete suppression of testosterone, making it a stronger candidate in contraceptive research.

6. Can S-23 be reversed after withdrawal?
Yes. Research indicates that testosterone and fertility markers recover after compound discontinuation.

7. How is S-23 studied in contraceptive trials?
S-23 suppresses luteinizing hormone and follicle-stimulating hormone, halting spermatogenesis while maintaining anabolic muscle activity.

8. What outcomes on bone density have been observed?
S-23 enhances bone strength and mineral density through androgen receptor stimulation in skeletal tissue.

9. What anabolic-to-androgenic ratio is reported?
Animal models suggest a higher anabolic-to-androgenic ratio than testosterone, reducing unwanted androgenic activity.