Description
What is AC-262536?
AC-262536 is a selective androgen receptor modulator (SARM) that is of scientific interest due to its ability to stimulate muscle growth and maintain physical strength without strongly affecting other androgen-sensitive organs. It is considered one of the mildest compounds in the SARMs group, with a potential anabolic effect combined with low androgenic activity.
The molecule was created to offer an alternative to classic androgen preparations, focusing on maintaining muscle mass, especially in conditions where tissue loss is observed – for example, aging, reduced activity or caloric deficit. AC-262536 has a balanced action and a good profile for research protocols related to physical recovery and body composition.
Mechanism of Action of AC-262536:
AC-262536 works by selectively binding to androgen receptors, resulting in the activation of anabolic processes in muscle tissue without triggering the receptors associated with unwanted effects on the prostate or other non-target areas.
The compound shows about 60% of the anabolic effect of testosterone at a significantly lower androgenic load. This makes it particularly suitable for laboratory studies in which an effect on muscle function is sought without hormonal fluctuations. At the same time, processes such as conversion to estrogens or water retention are not observed, which keeps the body composition cleaner and more stable.
Potential scientifically supported benefits of AC-262536:
AC-262536 has been studied in a number of laboratory settings where the following potential effects have been observed:
- Stimulation of muscle growth and strength, with limited systemic impact;
- Preservation of lean muscle mass during deficiency or immobilization;
- Improvement in muscle endurance and tone at light to moderate loads;
- Low likelihood of estrogenic reactions, fluid retention, or hormonal side effects;
- Suitable for more delicate research models where moderate but supportive anabolic action is desired.
Its flexibility makes it particularly suitable for studies aimed at achieving a balance between muscle maintenance and safety.
Comparison of AC-262536 with other SARMs
AC-262536 is a lesser-known SARM, but it occupies a specific niche in research protocols aimed at achieving an anabolic effect with the lowest possible systemic risk. The molecule is structurally designed to provide a moderate effect on muscle and bone tissue, without strong androgenic stimulation. It is often compared to Ostarine (MK2866), ACP-105 and Ligandrol (LGD-4033), especially when looking for more gentle approaches to recovery or maintenance.
Compared to Ostarine, AC-262536 demonstrated a similar safety profile, but generally with a weaker anabolic effect. While Ostarine is well established in research related to preserving muscle mass in a deficit, AC-262536 is often used in restorative models where minimal body loading is sought – including longer term regimens.
Compared to ACP-105, AC-262536 is even milder in action, making it suitable for maintenance cycles, initiation phases, or combination protocols where the goal is to minimize the impact on the hormonal axis. ACP-105, on the other hand, provides more noticeable anabolic stimulation, but at a slightly higher androgenic load.
Compared to Ligandrol, which is many times more powerful, AC-262536 is positioned as a gentle alternative, without significant risks of suppression or hormonal imbalance. Instead of aggressive growth, AC-262536 provides a mild, controlled stimulation, which is especially suitable when combined with other molecules such as Ibutamoren or Ecdysterone.
Dosage and administration of AC-262536 in research protocols:
Recommended study regimen: 5 units once daily for 4–6 weeks, followed by a 2–4 week rest period.
1 unit = 23.33mcg.
Total quantity in pen: 150 units
Possible side effects of AC-262536:
Although AC-262536 is considered one of the safer compounds among SARMs, there are observations of some side effects, especially with prolonged use or higher doses:
- Temporary suppression of testosterone production, depending on the duration of intake;
- Individual sensitivity to androgen stimulation, especially in more sensitive models;
- Limited long-term data.
Compliance with the optimal dosage and control over the duration of the application play a key role in limiting the manifestation of side effects.
For laboratory purposes and personal observation only.






