Displaying 5 results of Andarine Impurities Andarine is a selective androgen receptor modulator (SARM) used for muscle growth and bone strengthening. Impurities in andarine may affect the quality and safety of the drug, leading to adverse effects on health. Impurities may result from poor manufacturing practices or contamination during handling and storage. Therefore, it is important to ensure that andarine is tested for impurities and meets the required standards before use.