Our Myo-Inositol is 100% PURE Myo-Inositol, which is the most abundant isomer found in cell membranes. Research has shown that myo-inositol helps you fall asleep faster, supports healthy neurotransmitters, including GABA and serotonin, and supports healthy blood sugar, which, in turn, supports metabolic flexibility. What is Inositol? Inositol is a naturally occurring sugar found within cell membranes that plays a critical role in various processes including the functioning of peripheral nerves, osteogenesis, reproduction and fertility, and carbohydrate metabolism. Myo-inositol can be thought of as a second messenger within the body. While sometimes referred to as Vitamin B-8, it is not a true vitamin since our bodies can synthesize their own and it is found in many common foods such as grains, beans, nuts, and fruits.