S23 Liquid


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S-23, is admired by many across the world for its unique ability to improve lean muscle mass and bone tissue. A safer alternative to anabolic steroids, this selective androgen receptor modulator is extremely effective to lose stubborn fat. Considered by many as a powerful version of S-4 (Andarine).

Benefits Of S-23

  • Increases both skeletal and muscle massCaps
  • Promotes long-lasting muscle mass and endurance gains
  • Ideal for muscle hardening
  • Completely sets off catabolism in a calorie deficit
  • Increases bone strength and reduces fat mass
  • Improves libido
  • Helps users to retain gains long after a cycle
  • No bloating or fluid retention

Cycle Length

S-23 is best used in cycles of 8-12.


S-23 is best stacked in daily dosages of 20mg every day with 10mg of LGD-4033 every day and 20mg of RAD-140 every day in a cycle of 10-12 weeks. S-23 can be also stacked with SARMs such as MK-677, MK-2866, and Nutrabol for bulking.

Typical Results

The users of S-23 have reported massive improvements in the levels of lean muscle mass, strength, endurance, and the sense of well-being. Many online reviews on eminent bodybuilding and SARMs forums have also suggested that S-23 is a far better option than S-4 when it comes to losing abdominal and visceral fat.

PCT Yes or No?

Yes PCT & Cycle Support.

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    By purchasing from Swole AF Labs (SAF Labs LLC) you agree that your are purchasing Research Chemicals. 

    Swole AF Labs products are furnished for LABORATORY RESEARCH USE ONLY. This product should only be handled by qualified, and licensed professionals. The product may not be used as a drug, agricultural or pesticidal product, food additive or household chemical – and may not be misbranded as such. All information on this website is available for educational purposes only. Bodily introduction of any kind into humans and/or animals is strictly forbidden by law.


    *Research chemicals are chemical substances used by scientists for medical and scientific research purposes. One characteristic of a research chemical is that it is for laboratory research use only; a research chemical is not intended for human or veterinary use. This distinction is required on the labels of research chemicals, and is what exempts them from regulation under parts 100-740 in Title 21 of the Code of Federal Regulations (21CFR).