Myo-Inositol
Inositol is a vitamin-like compound that was previously referred to as vitamin B8 until it was discovered that the human body can produce it from glucose. Although inositol is no longer considered a vitamin, it is still vital for important functions in the body.
Inositol exists in the form of 9 different isomers; they differ only in the spatial arrangement of their atoms. The two most well-known inositol forms are myo-inositol and D-chiro-inositol.