NAC (N-Acetyl Cysteine)

NAC (N-acetyl cysteine) is a powerful antioxidant supplement derived from the amino acid cysteine that supports the body's production of glutathione, the master antioxidant, and has shown meaningful benefits for women with PCOS. Research demonstrates that NAC can improve insulin sensitivity, reduce total testosterone and androgen levels, increase FSH, enhance menstrual regularity, and support ovulation—with some studies showing benefits comparable to metformin but with fewer gastrointestinal side effects. NAC is also being studied for its potential to improve egg quality and IVF outcomes in women with PCOS.