Two vials representing the 40:1 myo-inositol to D-chiro-inositol ratio for PCOS".
D-chiro-inositol

Best 40:1 Myo-Inositol to D-Chiro Ratio for PCOS – Science Explained

Why the 40:1 myo-inositol to D-chiro-inositol ratio is the clinical gold standard for PCOS — and how to verify your supplement delivers it.