Myo-Inositol is a compound related to B vitamins that plays a crucial role in maintaining the integrity of cell membranes and signal transduction. It is commonly used in the treatment of polycystic ovary syndrome (PCOS), supporting female fertility and the ovulation process. Additionally, it influences the production of neurotransmitters in the brain, which can help manage mood disorders and improve insulin sensitivity, making it beneficial for metabolic health.