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CAS No : 1010396-29-8
Molecular formula : C18H13ClF4N2O3
Molecular weight : 416.753
Appearance : White solid
Assay : 99%min
Delivery time : 5-7 business days door-to-door
Minimum order : 100g
Supply ability : 100KG/month
Quality standard : Enterprise standard

Product Description

S-23 belongs to a new class of drugs called selective androgen receptor modulators (SARM). SARMs mimic testosterone by binding to hormone receptors in specific parts of the body. S-23 is said to positively affect muscles and bones thanks to its tissue-selective anabolic effects, and it doesn't come with the androgenic effects that other anabolic androgenic steroids (AAS) come.

Due to these and other benefits, S-23 is gaining mainstream popularity amongst bodybuilders. Many see it as a safe yet effective tool that helps them reduce fat and increase muscle mass without suffering any of the side-effects that are so common with other drugs. The closest thing to a side effect that S-23 comes with is its ability to reduce testosterone levels, but this can be rectified through post-cycle therapy (PCT).

How does S-23 Work?

Similar to other SARMs, S-23 affects muscle and bone tissue and primarily produces anabolic results in these regions. The great thing about S-23 is that it doesn't come with the side-effects that are caused by most SARMs in the market.

Benefits of S-23

1 Build Lean Muscle Mass

S-23 has been shown to help build lean body mass, and those who’ve taken it have reported better gain retention after finishing their cycle.

2 Reduce Fat

Another benefit of taking S-23 is the fact that it helps with fat loss as well as fat oxidization. In fact, a study that was done on rats showed that giving them S-23 reduced the rats' body fat percentage while increasing bone mineral density and lean muscle mass.

3 Increase strength and stamina

S-23 users also report experiencing a significant increase in endurance, speed, and stamina whenever they’re cycling this SARM. This means harder, meaner and longer workouts that actually produce results.

4 Increase Bone Strength

S-23 is great because it strengthens bones while improving muscle mass at the same time. The best part is that it shows the same results on bone density and muscle mass regardless of the dosages.

5 Boost Female Sexual Motivation

S-23 can help women improve libido without the risks associated with testosterone. These results were shown in a study that was done with postmenopausal female rats who were given S-23 as a treatment. The data shows that the rats exhibited increased sexual arousal and activity without any changes in their uterine lining.

What's the Best S-23 Dosages?

The only dosage information we have is based on animal studies. For instance, lab rats were given 0.1 mg per day to 3 mg per day during research, either orally or via injection.

Unofficial dosages commonly used in bodybuilders range from 10–30 mg/day, usually split into 2 due to S-23’s half-life of 12h. However, this drug clearance rate is based on animal studies and may not be accurate in humans.

Users have reported using S-23 for up to 8 weeks, usually as part of cutting cycles.

Method of Stacking

A lot of bodybuilders add S-23 SARM towards the end of their cycle in order to help them create a harder and grainer physique that's made possible by S-23's fat-reducing qualities.

If your goal is to get lean muscle, experts recommend stacking S-23 with LGD-4033 or Andarine.

Other people recommend stacking S-23 with MK-677 or GW501516. This could give a synergetic effect because MK-677 can boost your IGF-1 and HGH levels. Stacking SARMs is often done by bodybuilders who want to optimize their muscle gains.

S-23 Potential Side-effects

Very few studies on S-23 exist and no clinical studies have been carried out. Information about side effects from S-23 animal studies is sparse but still sheds some light on what to expect.

According to users, S-23 is the closest thing to conventional steroids that you can get in the SARM market. S-23 actually decreases testosterone levels to the point that some users report supplementing with Testosterone Replacement Therapy (TRT) in order to fight the resulting deficiency.

There have been reports of increased anger while taking S-23, so it might not be the best option for those that have a history of anger issues.

Some bodybuilders have noticed their testicles shrinking while using S-23 and this was later supported by a scientific study which showed the same side effect.

S-23 has been shown to produce a darker urine color, but this side-effect is also temporary and only lasts while you’re cycling with S-23.


All in all, the S-23 SARM is a powerhouse that can help you lose body fat, gain lean muscle mass and produce a ripped, textured physique. However, it's important to keep in mind that using it does come with certain unavoidable side effects but they do stop once you've finished cycling with S-23.

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* Paid orders are processed and dispatched the same day, the normal delivery time is 7-11 days after payment. Shipping time is typically dependent on how long customs takes, which can vary from country to country. Sometimes shipping times vary due to circumstances outside of our control. Your understanding will be highly appreciated.

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We have an experienced management team and a first-class R&D team, including many outstanding experts in the fields of pharmaceutical synthesis process development and pharmaceutical quality research.

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