Buy S-4 Andarine SARM in Thailand
S-4 Andarine comes in a 30ml liquid bottle containing 25 mg per ml. Current stock availability is shown in the purchasing section above.
Also known as Andarine and GTx-007, S-4 is one of the first-generation nonsteroidal selective androgen receptor modulators developed for research into muscle, bone and other androgen-responsive tissues.
S-4 Andarine Product Specifications
| Product | S-4 Andarine |
|---|---|
| Development code | GTx-007 |
| Concentration | 25 mg per ml |
| Bottle size | 30ml |
| Format | Liquid |
| Compound class | Investigational selective androgen receptor modulator |
What Is S-4 Andarine?
S-4 is a nonsteroidal SARM developed to interact with androgen receptors in a tissue-selective manner. Early researchers investigated whether selective receptor activity could support anabolic effects in muscle and bone while producing less stimulation in tissues such as the prostate.
The names S-4, Andarine and GTx-007 refer to the same compound. S-4 is the research code, while Andarine is the name most commonly recognized within the SARM market.
Tissue-Selective SARM Research
Early pharmacology research identified S-4 as a potent and tissue-selective androgen receptor modulator with anabolic activity in experimental models. This work helped establish S-4 as one of the original compounds used to demonstrate the potential of the SARM category.
Researchers reported that S-4 supported anabolic activity in muscle while producing substantially less stimulation of prostate tissue than a full androgen response in the same preclinical models.
Muscle Strength and Body Composition Research
In a controlled animal study, S-4 treatment restored skeletal-muscle strength and increased lean body mass in androgen-deficient rats. Researchers also reported improvements in bone mineral density while observing tissue-selective activity.
The study contributed to interest in S-4 for research involving muscle loss, physical function and body composition. These results were obtained in preclinical models and should not be interpreted as guaranteed outcomes for customers.
Bone Mass and Strength Research
Additional preclinical research examined S-4 in models of reduced bone density. S-4 maintained cortical bone content, whole-body bone mineral density and bone strength while also supporting skeletal-muscle performance.
The combination of muscle and bone findings made Andarine an important early research compound in the development of tissue-selective androgen receptor modulators.
Why S-4 Is Popular in the SARM Market
Interest in Andarine is connected to its early research involving lean body mass, muscle strength, body composition and bone tissue. These characteristics have made S-4 particularly recognizable within performance-focused and cutting-related SARM discussions.
Research findings do not guarantee a specific amount of muscle gain, fat loss, strength improvement or body-composition change for an individual.
Research Status and Important Information
S-4 remains an investigational compound, and most publicly available Andarine research is preclinical. Changes in visual adaptation or colour perception have also been reported in connection with S-4, so the product should not be presented as free from side effects.
S-4 is prohibited in tested sport under the World Anti-Doping Agency Prohibited List. Athletes subject to anti-doping rules should avoid exposure to Andarine.
Independent Information Sources
- Pharmacodynamics of selective androgen receptor modulators
- S-4 research on muscle strength, body composition and bone
- Review of SARMs in preclinical and clinical development
- PubChem information for Andarine
- World Anti-Doping Agency Prohibited List
This page summarizes the product specifications and published S-4 research. Results are not guaranteed, and Andarine remains an investigational SARM.







