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⚠️ Important
All products on our website are intended solely for laboratory and research purposes. The information provided for each product is for educational and informational purposes only. These products are not intended for use in or on humans or animals. They are recommended to be handled only by qualified professionals in a controlled environment.
S23 | 50mg/1,5ml
Stabilized Pre-Mixed Pen
Temporarily Sold Out – Restocking Soon!
| Quantity | Price | Discount |
|---|---|---|
| 3-5 | $117.80 | 5% |
| 6-9 | $115.32 | 7% |
| 10+ | $111.60 | 10% |
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Complete Your Kit — Add Pen Needles
Stabilized Formula
– tolerant of short temperature deviations above 46°F
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What is MSSPT technology?
How We Keep Peptides Stable Inside a Pen
Our MSSPT™ (Molecular Structure Stabilization Process Technology) keeps every peptide molecule intact and active—from production to the moment you click the pen.
Our MSSPT™ (Molecular Structure Stabilization Process Technology) keeps every peptide molecule intact and active—from production to the moment you click the pen.
Why it matters: Peptides are sensitive to heat, light, oxygen, pH swings, and shaking. MSSPT™ is our end‑to‑end method to protect them at every stage.
The MSSPT™ Playbook:
- Make the Molecule Tougher: Smart chemistry tweaks and protective groups reduce weak spots.
- Build the Right Microenvironment: Buffers, antioxidants, and stabilizers actively prevent degradation.
- Optimize Storage & Process: Freeze-drying, controlled humidity, and temperature safeguards ensure long-term stability.
- Engineer the Pen as a Shield: Light/oxygen barriers, desiccants, and low-shear pathways protect during use.
- Prove It With Data: Rigorous stability studies and analytics guarantee potency and safety.
What This Means For You: Reliable potency, convenient multi-peptide delivery, and consistent safety dose after dose.
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Research-Grade Quality
Every pen is manufactured under strict quality control for consistent and reliable lab use.
Stabilized Pre-Mixed Formula
No reconstitution required – optimized for convenience and accuracy in research.
Verified Source & Purity
Third-party tested for purity and identity to meet research standards.
Temperature-Controlled Shipping
Shipped in insulated packaging with cold packs to maintain optimal temperature. Every order is tracked to ensure safe and timely delivery.
Proper storage
To guarantee the highest quality of our research peptides, we prioritize proper delivery and storage conditions. Every order is shipped in specialized cooling boxes designed to maintain the necessary temperature throughout transit, ensuring that your peptides arrive in optimal condition.
Upon receiving your peptides, proper storage is essential to preserve their stability and potency. We recommend keeping them refrigerated at a temperature between 2°C and 8°C. This safeguards their integrity, allowing them to maintain their effectiveness throughout their shelf life.
For research use only.
Shipping details
Fast and secure shipping of your order with FedEx, ensuring the highest quality and reliability at every step.
Order Processing & Packaging
- Once your payment is confirmed via bank transfer or debit/credit card, we ship your order on the next business day.
- All orders are carefully packaged in temperature-controlled cooling boxes to maintain peptide integrity during transit.
Delivery Timeframe
- Standard U.S. delivery time: 1 to 3 business days.
- Orders are shipped exclusively via FedEx for a fast, safe, and reliable delivery experience.
Tracking & Order Confirmation
- Once your payment is processed and order is shipped, you will receive an email confirmation with your tracking number.
- You can track your order in real time using the FedEx tracking page.
How does the pen work?
The Peptide Pen is an advanced, pre-mixed device designed for accurate dosing in research applications. This ready-to-use pen eliminates the need for mixing, ensuring efficiency and reliability in every use.
Key Features of the Peptide Pen
✔ Pre-Mixed & Ready-to-Use – No need for dilution or manual preparation.
✔ Precision Dosing – Each pen is pre-calibrated for consistent and accurate measurement.
✔ Sterile & Secure – Manufactured in a controlled laboratory environment and packaged under strict sterile conditions to maintain purity and stability.
✔ User-Friendly Design – Ergonomic and easy-to-handle, making research more efficient.
How to Use the Peptide Pen?
1️⃣ Attach the needle – Secure it by twisting onto the pen until firmly in place.
2️⃣ Set the precise dose – Adjust the dosage dial by rotating the regulator to the desired units (ranging from 0 to 60).
3️⃣ Administer as per research protocols – Ensuring controlled and reproducible application.
4️⃣ Proper Storage – Keep the pen refrigerated between 2°C and 8°C to maintain peptide integrity and stability.
⚠ Note: Our peptides are for research use only and are not intended for human consumption.
What is S23?
S23 is a synthetic selective androgen receptor modulator (SARM), designed to support muscle mass development and body fat reduction with the highest possible tissue selectivity. It stands out as one of the most potent compounds in its class, with exceptionally strong binding to androgen receptors and a targeted action primarily on skeletal muscle.
Developed for research purposes, S23 draws interest due to its capability to maintain high levels of muscle strength and density, even under caloric deficit. It is often used in laboratory models focused on body recomposition, muscle recovery, and hormonal regulation.
Mechanism of action of S23:
S23 acts through selective activation of androgen receptors, which play a key role in muscle growth, strength, and bone density. After binding to the receptors, the compound triggers processes that stimulate the building of muscle fibers while at the same time helping reduce adipose tissue.
Unlike classic androgenic preparations, S23 does not convert into estrogen and does not lead to water retention or unwanted enlargement of sensitive tissues. This makes it an object of research seeking balanced androgenic activity with controlled impact only on target tissues.
Potential research-backed benefits of S23:
S23 shows a range of effects that make it of interest for scientific studies related to body composition, recovery, and hormonal balance. Among them are:
- Significant increase in muscle mass and strength;
- Reduction of subcutaneous fat, especially in the abdominal area;
- Maintenance of muscle density during caloric deficit;
- Improved hardness and definition of the musculature;
- Potential for application in research related to muscle tissue loss with aging;
- Suitable for subcutaneous application in a stabilized formula with clearly controlled dosage.
Its balanced action between anabolic effect and lack of serious hormonal deviations positions it as a preferred molecule for research aimed at physical optimization.
Comparison of S23 with other SARMs
S23 stands out as one of the most powerful compounds among SARMs, with exceptionally high affinity for the androgen receptor and a strongly expressed anabolic and androgenic action. It is often compared with other leading molecules such as Testolone (RAD-140), Ligandrol (LGD-4033), and YK-11 due to its effectiveness in building muscle mass and reducing fat.
Compared to RAD-140, S23 shows higher androgenic strength, but also a greater likelihood of suppressing endogenous testosterone. While RAD-140 offers a balance between anabolic effect and tolerability, S23 is used in research where maximum stimulation of muscle growth and body transformation over a short period is sought, without compromising the strength of impact.
Compared to Ligandrol, which has a milder profile and is suitable for longer protocols, S23 is more appropriate for intensive and short-term research where the main goal is aggressive muscle building and fat burning. However, LGD-4033 has an advantage in reducing the risk of hormonal side effects.
When compared with YK-11, both compounds target rapid results but use different mechanisms. S23 acts through classic androgen modulation, while YK-11 combines androgenic action with increased follistatin and myostatin modulation. This makes YK-11 more suitable for research related to “pushing” the genetic limit of muscle growth.
S23 is a strong compound, often chosen in advanced protocols where a maximal effect on strength, density, and a pronounced anabolic response is sought, but with a need for strict monitoring of hormonal status.
Dosage and application of S23 in research protocols:
Recommended research scheme: 7 units once daily, for 4–6 weeks, followed by a 2–4 week off period.
1 unit = 33.33mcg.
Total amount in pen: 150 units
Possible side effects of S23:
Despite the high effectiveness of S23, there are observations of some side effects, especially with prolonged use or higher doses:
- Temporary suppression of natural testosterone, depending on the dosage and duration of the protocol;
- Increased sensitivity to androgenic activity in some models;
- Insufficient long-term data regarding prolonged use.
Adhering to optimal dosing and controlling the duration of application play a key role in limiting the manifestation of side effects.
Disclaimer
For research use only. Not for human consumption.
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