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Liquid S23 – 20MG/ML



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S23 SARM: A Potent Nonsteroidal Selective Androgen Receptor Modulator

S23 SARM is a nonsteroidal selective androgen receptor modulator widely regarded in anecdotal reports and by its binding affinity to the androgen receptor as the most potent SARM available, nearly as potent as anabolic steroids. It is being studied for its effects on lean muscle gains, bone density, fat loss, sex drive, and as an oral male contraceptive. The oral bioavailability of S23 is ~96%, peak levels are achieved at about 4 hours and the half life of S23 is 11.9 hours.

S23 Mechanism of Action

S23 mimics the action of testosterone in muscles and bones and may stimulate protein synthesis and muscle growth. S23 is a relatively new SARM and has never been clinically tested in mammals so the safety profile of S23 has not been established. SARMs studies indicate that it may induce liver damage, fertility, and for males, reduction in natural testosterone levels.

Potential Male Contraceptive Agent

It is presently being researched as a potential male contraceptive agent in rats. During a study in rats it caused temporary interruption in fertility in all specimens it was tested on. While this effect was reversed in rats, it is important to note that this product has never been tested in mammals and it is unknown if it interrupts fertility temporarily, permanently, or not at all. While S23 SARM has a high oral bioavailability, it is important to note that in this study these rats were injected with S23.

Effects on Lean Muscle Mass and Body Fat

This study also found that S23 increased lean muscle mass and decreased body fat in a quantity-dependent manner, and was able to outcompete the catabolic effects of estradiol benzoate administration. Another rat study found that S23 prevented fast-twitch and slow-twitch muscle loss from glucocorticoids indicating that it may have significant anabolic effects.

Research Demonstrated Increased Bone Mineral Density

The rat model also demonstrates an increase in bone mineral density from S23 SARM administration. Low quantities appeared to work equally well to high quantities. Bone mineral density increases are fairly commonplace with the administration of SARMs however S23 may be particularly effective in this regard.

Research has Shown Sexual Activity and Drive in Postmenopausal Female Rats

A study on postmenopausal female rats demonstrated that most SARMs were able to increase sexual activity and drive, with S23 in particular causing the largest increase in sexual motivation without inducing growth in the uterus and uterine lining. Males however may experience the opposite effect due to S23’s tendency to reduce natural testosterone levels as well as its higher binding affinity for the androgen receptor.

Data on our Liquid S23 for sale

CAS Number: 1010396-29-8

Formula: C18H13CIF4N2O3

Molar Mass: 416.753 g/mol

Class: Selective Androgen Receptor Modulator

Storage: Store in a cool dry place away from direct sunlight to maximize shelf life.

  • 30ml Liquid S23 per bottle with 20 milligrams per milliliter.
  • Includes graduated 1mL glass pipette for convenient measurement.
  • Glass bottle with UV resistance to minimize degradation.
  • Tamper-proof seal to ensure safety in transit.
  • Less than 5% variance in concentration, guaranteeing consistency.
  • Formulated and packaged to prevent evaporation in storage.

This preparation is for laboratory research purposes only and is not approved by the FDA for human consumption. S23 IS NOT A DIETARY OR SPORTS SUPPLEMENT.


S23 binds to androgen receptors for tissue specific anabolic effects.

While rat studies indicate temporary but significant suppression in sperm count, S23 does not have enough clinical data to be utilized reliably for contraception

Data suggests that S23 may temporarily but significantly lower natural testosterone in males.

Why buy S23 SARM from Sports Technology Labs?

Buy S23

If you are trying to figure out where to buy S23 online, widely regarded as the strongest SARM, there certainly seem to be plenty of choices out there. However, not all companies offering S23 for sale are alike—or equally trustworthy. To buy liquid S23 from a randomly selected pharmaceutical company or website is dangerous, even if the price looks reasonable, because you can’t be certain about their quality-control processes.

Sports Technology Labs is the best place to buy S23 online because of our consistent, verifiable high quality products, safer bottling and packaging, fast shipping, and great customer service. Our S23 is also available in pure powder form.

When you buy SARMs like S23 from Sports Technology Labs you are choosing the highest quality ingredients. Minimum 98% pure compounds tested and certified by accredited American third party labs, suspended in USP grade (the highest grade) PEG400, bottled in America. Our products come in glass bottles with fixed glass droppers to prevent the leaching of unwanted plasticizers like BPA, and prevent contamination between testing with external measuring tools.

We run a transparent business, with no discreet payment methods necessary and no misrepresentation of our products, only the highest quality research chemicals available online, secured by our 60-day money-back guarantee. We offer free USPS shipping on orders over $149 and if you need the products in a hurry we offer express shipping as well. Customers that sign up for our email list get 10% off, and an additional 10% off for payment with cryptocurrency.

That’s why we’re confident in our claim that we offer the best S23 for sale on the market today. And if you have any questions about our liquid S23 products, you can also contact us and we’ll respond as soon as possible.

Abuse Warning

S23 is an investigational compound still awaiting FDA approval and is not a dietary supplement. At Sports Technology Labs we are chemical suppliers, not medical doctors, and our expertise is sourcing and quality control. Sports Technology Labs does not encourage or condone consumer use of SARMs products, they are for research purposes only.

SARMs should only be used under the supervision and direction of a medical doctor or designated research authority. We strongly discourage the use of SARMs for performance enhancement in sports and bodybuilding, and warn against “bro science” and peer consensus when making decisions about human health.

Scientific References:

1. Jones, A., Chen, J., Hwang, D. J., Miller, D. D., & Dalton, J. T. (2009). Preclinical characterization of a (S)-N-(4-cyano-3-trifluoromethyl-phenyl)-3-(3-fluoro, 4-chlorophenoxy)-2-hydroxy-2-methyl-propanamide: a selective androgen receptor modulator for hormonal male contraception. Endocrinology 150(1), 385–395.

2. Jones A, Hwang DJ, Narayanan R, Miller DD, Dalton JT. Effects of a novel selective androgen receptor modulator on dexamethasone-induced and hypogonadism-induced muscle atrophy. Endocrinology. 2010 Aug;151(8):3706-19. doi: 10.1210/en.2010-0150. Epub 2010 Jun 9. PMID: 20534726.

3. Jones, A., Hwang, D. J., Duke, C. B., 3rd, He, Y., Siddam, A., Miller, D. D., & Dalton, J. T. (2010). Nonsteroidal selective androgen receptor modulators enhance female sexual motivation. The Journal of pharmacology and experimental therapeutics334(2), 439–448.