Buy S-23 Capsules for Advanced Muscle Growth & Strength with Discreet Worldwide Shipping
What is S-23?
S-23 is a selective androgen receptor modulator (SARM) known for its exceptional potency and anabolic activity. Originally developed by GTX Inc., S-23 was designed as a potential male hormonal contraceptive and muscle-preserving agent.
It works by binding strongly to androgen receptors in muscle and bone tissue, mimicking testosterone’s muscle-building effects without the unwanted side effects commonly associated with steroids.
At Peptide Online Store, our S-23 Capsules deliver research-grade purity (≥99%), ensuring reliable, consistent results for advanced laboratory and academic research.
How Does S-23 Work in the Body?
S-23 selectively targets androgen receptors in muscle and bone cells, stimulating anabolic activity that promotes lean mass and increases muscle strength.
Its high binding affinity enhances protein synthesis, nitrogen retention, and fat oxidation, creating an ideal environment for muscle hypertrophy and body recomposition.
Research also shows that S-23 can suppress luteinizing hormone (LH) and follicle-stimulating hormone (FSH), which has made it of interest for male contraceptive studies.
Key Benefits of S-23 Capsules
Promotes dense, lean muscle growth
Enhances strength and power output
Reduces body fat percentage through metabolic stimulation
Supports increased vascularity and muscle hardness
Demonstrates strong anabolic-to-androgenic ratio
Useful in androgen receptor efficiency research
S-23 is considered one of the most potent SARMs available for research applications.
Product Details and Purity
Product Name: S-23 Capsules
Form: Oral Capsules
Strength: [Insert mg per capsule, e.g., 20mg]
Quantity: [Insert number of capsules, e.g., 60 per bottle]
Purity: ≥99% (HPLC Verified)
Chemical Formula: C18H13ClF4N2O3
Molecular Weight: 416.75 g/mol
Appearance: Off-white crystalline powder
Storage: Store in a cool, dry environment below 25°C
All S-23 Capsules from Peptide Online Store are manufactured under strict GMP conditions and tested by independent third-party laboratories.
Dosage & Usage Guidelines
For research purposes, S-23 is typically examined at dosages ranging from 10mg to 30mg daily, depending on the study design and desired outcomes.
Due to its short half-life (approx. 12 hours), researchers often divide the dosage into two daily administrations to maintain consistent plasma concentration.
⚠️ Important: S-23 is not approved for human consumption. It is intended strictly for laboratory and research use only.
Safety, Side Effects & Precautions
While S-23 demonstrates remarkable efficacy in muscle and strength studies, researchers should be aware of potential dose-dependent effects, including:
Mild suppression of endogenous testosterone
Temporary mood fluctuations in animal models
Reversible reproductive hormone suppression
All studies should adhere to proper handling procedures, PPE standards, and ethical research guidelines.
Quality Assurance & Testing
Peptide Online Store ensures every batch of S-23 Capsules undergoes:
HPLC (High-Performance Liquid Chromatography) purity testing
GC-MS (Gas Chromatography–Mass Spectrometry) validation
Heavy metal and microbial contamination screening
Stability testing to maintain potency during storage and shipping
Each batch includes a Certificate of Analysis (COA) verifying identity and purity.
Commitment to Quality and Compliance
We are committed to maintaining GMP-certified production, ISO-accredited lab testing, and ethical sourcing practices.
Our products meet the strictest international standards for research chemicals and peptides.
This ensures every shipment of S-23 Capsules delivers accurate composition, consistency, and purity — essential for scientific reliability.
Potential Applications (For Research Use Only)
Muscle hypertrophy and performance enhancement studies
Hormonal suppression and contraceptive trials
Androgen receptor binding efficiency research
Osteoporosis and bone density research
Metabolic and fat oxidation studies
All applications must comply with laboratory research regulations and institutional review guidelines.
Why Choose Peptide Online Store for S-23 Capsules?
Pharmaceutical-grade purity and lab verification
Trusted supplier to research institutions globally
Discreet worldwide shipping
Secure online transactions with SSL encryption
Responsive customer service and COA documentation
When precision, quality, and reliability matter — researchers choose Peptide Online Store.
Shipping & Delivery Information
Global shipping to over 100 countries
Discreet packaging for research confidentiality
Order processing: Within 24–48 hours
Delivery time: 3–10 business days (depending on region)
Real-time tracking provided on dispatch
We ensure fast, secure, and private delivery for all research compounds.
How to Order Online
Visit Peptide Online Store.
Search for S-23 Capsules in the SARMs category.
Choose your preferred size and quantity.
Add to cart and proceed to secure checkout.
Receive instant confirmation and track your shipment.
Frequently Asked Questions (FAQ)
Q1: What makes S-23 different from other SARMs?
A: S-23 has the highest binding affinity among SARMs, offering unmatched muscle-building potential in research.
Q2: Can S-23 be stacked with other SARMs?
A: In research settings, it’s often studied alongside RAD-140 or LGD-4033 for synergistic anabolic effects.
Q3: Is S-23 safe for human use?
A: No. S-23 is for research purposes only and is not approved for human consumption.
Related Products to S-23 Capsules
RAD-140 (Testolone) Capsules
LGD-4033 (Ligandrol) Capsules
YK-11 Capsules
S-4 (Andarine) Capsules
MK-2866 (Ostarine) Capsules
Final Thoughts
S-23 Capsules represent the pinnacle of SARM research, delivering exceptional anabolic efficiency and receptor selectivity.
For scientists studying muscle growth, androgen modulation, or metabolic optimization, S-23 offers unmatched consistency and potency.
At Peptide Online Store, we provide researchers worldwide with verified, pure, and ethically sourced compounds — backed by fast, discreet shipping and professional support.