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S4 (Andarine)

S4(Andarine) benefits
Product Name : S4 (Andarine)
Product ID : S4
Specification : 99%-HPLC
Packing : Aluminium Foil Bags
Shipping Method : Sea / Air / Courier
MOQ : 50G
Sample Request : Due to final agreement


S4 is a typical SARM (Selective Androgen Receptor Modulator), it is as known as Andarine, S-40503, or Acetamidoxolutamide. S4(Andarine) was firstly developed for male contraceptives by decreases in spermatogenesis and boosts in male libido. But the animal testing reports also show that lab mice has gain more muscle mass with fat loss and increased bone density. so it is also been used in bodybuilding products on market. However, used of SARMs has been considered doping by the US Anti-Doping Agency (USADA), and these drugs are on the World Anti-Doping Agency (WADA) prohibited list from 2008.So S4(Andarine) can be only used as a research chemical although it is approved for a stage 2 research study.


As a SARM (Selective Androgen Receptor Modulator), S4(Andarine) generates selective anabolic activity by attaches to the androgen receptor and stick to it to produce genes that exclusively benefit muscle and bone growth. So S4(Andarine) can improve muscle mass and increase bone density and help with the fat loss.

Studies of S4(Andarine) shown that it can be an  an alternative treatment to age-related muscle wasting, osteoporosis, and similar symptoms of hypogonadism, or end-stage renal disease.

Side Effects/Dosage

As a SARMs, S4(Andarine) won't cause liver damage like some traditional steroid. However side effects reports also show that S4(Andarine) may cause vesual issues such as  yellow tint and difficulty adjusting to night vision. This effects can be disapear after stop taking it. S4(Andarine) may also cause depression in a small population of people. 

The recommanded dosage is 50-75mg per day. the half life of S4(Andarine) is around 4 hours.Higher dosage may cause stronger side effects.

This chemical should be used in research purpose only.

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