D-Pinitol
Also known as Inzitol™ and 3-O-methyl-D-chiro-inositol. D-Pinitol is known to enhance creatine uptake in skeletal muscle, due to its insulin-like properties. However, in the one human study performed, a dose of 1.0 g (500 mg taken twice per day), was used to achieve this effect. Women w/PCOS (polycystic ovary syndrome) sometimes use D-pinitol as an alternative to the closely related D-chiro-inositol, to treat insulin resistance and other characteristic metabolic symptoms.