S4 is a strong sarm with the addition of N-Acetyl L-Cysteine and vitamin E. Andaryna in a dose of 25 mg effectively increases the activity of androgens in cells, which leads to increased protein synthesis. This limits catabolism and prevents the burning of muscle tissue. Selective androgen receptor modulators - SARM effectively increase muscle mass, bone mass and support the loss of unnecessary kilograms.According to studies, Andaryna does not raise estradiol and stimulates anabolic activity similarly or even more effectively than TP. It is recommended for use by athletes during loss of body fat because it not only increases muscle mass gain but also prevents excessive accumulation of water in the body. The result is a perfectly sculpted silhouette. The addition of NAC provides regeneration of the body and improves exercise parameters, and vitamin E provides a strong antioxidant effect.S4- is characterized by a strong anabolic effect. Often compared to anabolic steroids, and even put up on par with them. Has a strong influence on the development of muscle mass and strength, reduced side effects of steroids. Thanks to its mechanism, it has a strong anabolic effect, while reducing side effects, such as estrogen growth, acne, and gynecomastia. Binding and activation of the androgen receptor transforms into gene expression and enhances the synthesis of proteins that eventually build and protect muscles from burning.