S4 - 5g powder for conducting your own research, complete with full COA.
Andarine’s full technical name isn’t S-4. The full name of this compound is actually S-40503 but for the purpose of convenience, it’s been called S-4 for short. This substance has been discovered by the Japanese pharmaceutical company Kaken Pharmaceuticals.
Current animal tests are still ongoing and the substance is intended for research and testing alone and not yet recommended for human recreational use.