S23 is a bioavailable and nonsteroidal SARM (Selective Androgen Receptor Modulator) created by GTx, a pharmaceutical company that develops hormonal drugs as well as several other SARMs, as a potential male contraceptive. Studies show that, unlike testosterone or anabolic steroids, S23 SARM increases bone tissue and lean muscle while being tissue selective. This specificity targets lean muscle mass and fat oxidation.
Chemical Structure of S23 SARM
Chemical Name: (2S)-N-(4-cyano-3-trifluoromethylphenyl)-3-(3-fluoro-4-chlorophenoxy)-2-hydroxy-2-methyl-propanamide
Molecular Formula: C18H13ClF4N2O3
Half-Life: 18–24 hours
A study on rats given S23 showed muscle mass increased along with bone density while simultaneously reducing the rat’s overall body fat. The study also showed that there was a direct correlation between the rate of fat loss in the rats and the size of the dose. The rats given higher doses of S23 SARM showed a larger decrease in body fat.
What is S23 SARM?
S23 is an investigational selective androgen receptor modulator (SARM) that is still being researched. SARMs target androgen receptors specifically in muscle and bone for purported benefits like increasing muscle mass. S23 has not been approved for medical use yet.
How Does S23 SARM Work?
The limited data on S23 indicates that it binds to androgen receptors and may promote anabolic effects similar to testosterone. It is orally bioavailable. S23 is thought to increase muscle mass and bone density. More research is still needed on its mechanisms and effects.
Benefits Of S23 SARM
Early S23 studies suggest it may help improve lean muscle gains, increase strength, enhance stamina, and support bone health. It may also provide benefits like those of testosterone with reduced side effects. However, the benefits are still speculative, pending the completion of clinical trials.
Side Effects of S23 SARM
Limited data is available on S23 side effects. Potential risks likely include typical SARM side effects like hair loss, acne, testosterone suppression, liver toxicity, and negative cholesterol changes. High doses may increase prostate enlargement risk. Further research is required.
Where to Purchase S23 SARM Online
As an investigational SARM, S23 is prohibited for human consumption and only available for research purposes. There are some online peptide and SARM companies that offer S23 for lab studies, but it remains a legal gray area. Consult a medical professional before attempting to buy peptides online any unapproved experimental compounds.
S23 compared to other SARMs (Andarine S4, RAD 140, Ostarine MK 2866, MK 677 and YK11)
S23 has some very common properties with other SARMs, such as the increase in the following:
- Muscle mass
- Fat loss
- Stamina and energy
- Tissue repair
- Higher than usual aggression levels
However, it has several properties unique to S23.
1. S23 and Testosterone Production Shutdown
The most notable is that studies showed that, unlike other SARMs such as S4, RAD 140, MK 2866, MK 677, and YK11, S23 SARM completely shut down the production of natural testosterone. This explains its potential application as a potential male contraceptive.
2. Prostate Shrinkage
Studies showed a decrease in prostate size, which is the opposite effect seen when compared to lab results using testosterone and other SARMs.
3. Darker Urine
Darker urine was noted in test subjects taking S23 SARM. This returned to a normal urine color once the experiments ceased.
In conclusion, the S23 SARM has proven to be an extremely powerful SARM with enormous scientific potential and hopeful future human applications. As of now, you can only buy S23 SARM for research purposes and not for human consumption.