Bio-Formed Glucose Tolerance Factor

All the chromium in Twinlab Bio-Formed GTF Chromium is biologically formed (Bio-Formed) and organically bound (chelated) into live brewers yeast cells during the natural growth process of yeast.  The chromium is assimilated by the yeast and thus formed in the same manner as the natural amounts of chromium which have always occurred naturally in brewers' yeast.

No sugars, starch, flavors, colors or preservatives. 
No corn, soy, wheat, milk or egg derivatives.

From Supplement Facts:  Chromium Yeast is yeast containing GTF Chromium.