Description

Technical Parameters

Introduction

pill

muscle 3

Products Description

### 1. Physical and Chemical Properties

1. Chemical Name:

YK11 (Full Name: 17α-methyl-17β-hydroxy-5α-androstano[2,3-c]pyrazol-3-one)

2. Chemical Class:

This compound belongs to the SARM class, but its structure has certain steroidal characteristics, thus possessing some steroidal properties.

3. Molecular Formula:

C₂₅H₃₄N₂O₃

4. Molecular Weight:

410.55 g/mol

5. Physical Form:

In its raw form, it is a white to off-white crystalline powder with high stability and resistance to photolysis.

6. Solubility:

It has good solubility in organic solvents (such as ethanol and DMSO) and poor solubility in water.

7. Stability:

It maintains its activity for a long time when stored in a dry, sealed, dark, and low-temperature environment, avoiding moisture and high temperatures.

8. **Pharmacokinetic Characteristics**:

Oral bioavailability is high, with a half-life typically between 6–10 hours. Dosing in divided doses is recommended to maintain stable plasma concentrations.

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### 2. Appearance and Color Characteristics

* **Tablet Appearance**: Standard round or small compressed tablets, approximately 6–8 mm in diameter, with uniform thickness for easy swallowing.

* **Color**: STROMUSC YK11 tablets are generally **pale white or light grayish white**, with a uniform color without noticeable spots and a smooth surface.

* **Texture**: Moderately hard, not easily broken by hand, and exhibits good moisture resistance.

* **Packaging**: Typically packaged in sealed bottles or aluminum-plastic blister packs, with brand identification and batch code for easy traceability and storage.

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### 3. Mechanism of Action

YK11's mechanism of action differs from conventional SARMs. It activates androgen receptors to promote protein synthesis and also upregulates the expression of the inhibitory factor myostatin, thereby accelerating muscle fiber growth and thickening. Through this dual action pathway, YK11 can significantly increase muscle mass and strength in the short term while reducing fat deposition.

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### 4. Key Benefits

1. Fast Muscle Growth

Under equivalent training conditions, YK11's effect on muscle fiber hypertrophy is more pronounced than other SARMs, making it particularly suitable for fitness enthusiasts seeking to overcome a plateau.

2. Suppressing Fat Accumulation

By boosting basal metabolism and improving muscle metabolic efficiency, it helps control fat gain during muscle-building phases.

3. Improved Muscle Density and Firmness

Users often report experiencing firmer, more defined muscles, making it ideal for pre-competition conditioning. 4. **Quick Results**

While some SARMs take 6–8 weeks to show noticeable changes, YK11 shows visible improvements in just 2–4 weeks.

5. **Convenient Oral Administration**

Highly bioavailable, it can be taken orally, eliminating the need for injections, providing a user-friendly experience.

6. **Brand Quality Assurance**

STROMUSC rigorously controls the purity of its raw materials, performs heavy metal testing, and performs stability verification to minimize the risk of side effects caused by impurities.

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### 5. Applicable Groups and Application Scenarios

* **Suitable Groups**:

* Bodybuilders or athletes with some training experience

* Trainees experiencing a muscle growth plateau

* Pre-competition athletes seeking a short-term increase in muscle firmness and definition

* **Not Recommended**:

* Beginners or individuals with no prior training experience

* Minors

* Pregnant or lactating women

* Individuals with severe liver or kidney dysfunction or hormone-related conditions

* **Typical Application Scenarios**:

* Pre-competition sprint period for bodybuilding athletes

* Short-term strength gains for strength athletes

* Rapid muscle density improvements combined with high-intensity training

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### 6. Storage and Stability Recommendations

* Store in a cool, dry place, away from direct sunlight and high temperatures.

* Use within 6 months after opening.

* Keep away from children and pets.

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### 7. Summary

STROMUSC YK11 (10mg tablets) is a product that combines **Effective Muscle Build, Increase Strength, and Improve Muscle Mass** This advanced fitness supplement offers the triple advantage of stable physical and chemical properties, a simple and professional tablet appearance, and ease of use. It's ideal for demanding athletes seeking significant improvements in size and strength in a short period of time. Thanks to its unique myostatin-inhibiting properties, YK11 significantly promotes muscle growth while maintaining low body fat levels, placing it in a unique position in the sports nutrition supplement market.