The S4 (ANDERINE) is a potent and selective androgen receptor modulator (SARM) that is known for its ability to promote lean muscle mass and increase strength. It is particularly effective for athletes and bodybuilders who are looking to improve their performance and build more muscle. This SARM works by binding to androgen receptors in the body, which helps to stimulate protein synthesis and increase nitrogen retention. It is also known for its ability to promote fat loss and improve overall body composition. With regular use, the S4 (ANDERINE) can help users achieve their fitness goals faster and more effectively.