Source Naturals Inositol Pure 2 oz. Powder 2 Powder

Inositol, Pure   Inositol is an essential component of the phospholipids that make up cellular membranes found in virtually every cell in the body. Recent research indicates that inositol helps establish healthy cell membranes which facilitate nerve impulses. 

Ingredients:
Inositol -845 mg

Suggested Usage: 1/8 to 1/4 teaspoon per day, between meals or at bedtime.