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Chemical and Physical Properties of S-23 SARM Powder:
- Appearance: Fine white crystalline powder
- Chemical Formula: C18H13ClF4N2O3
- Molecular Weight: 416.75 g/mol
- Melting Point: Approximately 133-136°C
- Solubility: Soluble in DMSO, ethanol, and other organic solvents; slightly soluble in water
- CAS Number: 1010396-29-8
- Stability: Stable under normal conditions; should be stored in a cool, dry place away from light and moisture to preserve its potency.
What is sarm S23?
S-23 is a chemical known as a selective androgen receptor modulator (SARM). It mimics the activity of testosterone in the body.
It is used to increase muscle growth, improve athletic performance, increase energy, and for other purposes, but there is no good scientific evidence to support its use. [Webmd]
S23 SARMS was originally developed as a male contraceptive. It is a strong androgen that reduces sperm count.
In the fitness industry, athletes and bodybuilders have begun using S-23 to improve their appearance and performance. S23 is used in cutting cycles to remove excess body fat. [Wikipedia]

How does S23 work?
It is not clear exactly how S-23 SARM works, but it appears to work by altering the way the androgen receptor works.
In animal studies, S-23 SARM has been shown to have a stronger muscle-building effect than testosterone, making it a promising option for treating conditions such as muscle loss and osteoporosis. [Ncbi]
This SARM attaches very strongly and selectively to the androgen receptor, showing muscle building and androgen-like effects.The muscle building effects of S23 SARM include the production of more protein.
S23 Sarm Powder Certificate of Analysis
| Product name |
S-23 |
CAS No. |
1010396-29-8 |
| Batch No. |
S20240726 |
Quantity |
10KG |
| Mgf. Date |
2024.7.26 |
Expiry Date |
2026.7.25 |
| Date of Report |
2024.7.27 |
Package |
10 grams/bag |
| Quantity standard |
Enterprise standard |
| Item |
Specification |
Result |
| Appearance |
White powder |
White powder |
| Assay (HPLC) |
≥98.0% |
99.42% |
| Identification |
The retention of the major peak is confirmed to the RS |
Pass |
| Loss on drying |
≤0.5% |
0.35% |
| Ignition residue |
≤0.1% |
Pass |
| Conclusion |
Conforms to enterprise standards |
| Storage & Shelf life |
Store in the original sealed container in a cool dry place for two years |
| Q.C.Dept. Director: Zhang Hua |
Checker: Wu Ming |
Identifier: Han Zhen |
Key Benefits of S23 SARM:
- 99%+ Purity Guaranteed: Our S-23 is lab-tested for high purity, ensuring a safe and effective product for muscle growth and fat loss.
- Muscle Growth: S-23 promotes lean muscle mass gains, making it ideal for bulking cycles.
- Strength Gains: S-23 is known for increasing strength and endurance, enabling users to push through workout plateaus.
- Fat Loss: S-23 helps reduce body fat while preserving muscle mass, making it suitable for cutting cycles.
- Enhanced Recovery: S-23 supports faster recovery between workouts, allowing for more intense and frequent training sessions. [sarmguide]
S23 Sarm Cycle
If you want to cycle S23 and get the best results then you need to follow a few key rules.
Firstly, make sure you start with a low dose and slowly increase the dose over the cycle.
Secondly, keep your cycles short – no more than 8 weeks at a time.
Finally, make sure you have a good post-cycle therapy (PCT) program in place to help your body get better.
Following these simple tips will help you maximize your S-23 cycle and reduce the chance of side effects.
S23 Sarm Stack
S-23 SARM can be stacked with other SARMs to enhance its effects for muscle growth, fat loss, and strength. Popular stacking combinations include:
- S-23 + LGD 4033: Ideal for increasing lean muscle mass and strength gains during bulking cycles.
- S-23 + RAD 140: Used for advanced muscle building and enhanced performance.
- S-23 + Cardarine (GW501516): Suitable for cutting cycles, promoting fat loss while preserving muscle mass and boosting endurance.
Always follow proper dosing and consider Post-Cycle Therapy (PCT) after a cycle
Side Effects of S23 SARM
S-23 SARM is known for its potency but may carry several potential side effects, which include:
- Testosterone Suppression: S-23 is highly suppressive, potentially causing a significant drop in natural testosterone levels.
- Increased Aggression: Users may experience heightened aggression or irritability.
- Hair Loss: There may be an increased risk of hair loss, particularly in individuals prone to male pattern baldness.
- Changes in Libido: Users may report both an increase or decrease in libido during and after a cycle.
Post-Cycle Therapy (PCT) is strongly recommended after an S-23 cycle to restore hormone levels.
The potency of s-23 sarm is very similar to most steroids, and if you follow a good PCT, you won’t see any adverse effects from this supplement.
The most common steroid which compare with S23 is Winstrol, as they act similarly in the body.
Interestingly, on a milligram-for-milligram basis, Winstrol is actually weaker compared to S-23. This makes SARMS S-23 a good alternative to steroids and should therefore be respected.
Always remember to take S23 safely, otherwise you will face some adverse effects such as Testosterone Suppression, Hair Loss, etc.
Why Choose AASPHARM for S-23 SARM?
- Lab-Tested for Quality and Safety: Every batch of our S-23 is rigorously tested to ensure 99%+ purity, providing a safe and effective product for your fitness goals.
- Fast and Discreet Shipping: We offer fast, discreet shipping for both small and bulk orders, ensuring that your product arrives securely and on time.
- Trusted Supplier: AASPHARM is known for providing high-quality SARMs and supplements, offering premium products and exceptional customer service.