s4 avant for sale

S-4(Andarine) S-4(Andarine) is a selective androgen receptor modulator. Its full name is S-40503, known as S-4 for short, is called Andarine. Andarine is made by Developed by Japanese pharmaceutical company KakenPharmaceuticals and originally intended for use in treatment Treatment of osteoporosis. In recent years it has been used by athletes for doping purposes, therefore, it Has been banned by the World Anti-Doping Organization, included in the list of banned doping. S - 4 work It can be similar to the steroids corylone and oxyandrogen, but it is not a steroid. Functions and characteristics of S-4(Andarine) S-4 has a strong affinity for androgen receptors in bone and muscle Very good