About this item SUPPORTS HEALTHY GLUCOSE METABOLISM*: GTF Chromium is a biologically active form of chelated chromium known as Chromium Chelavite.* INSULIN COFACTOR*: This form of chromium is also known as "Glucose Tolerance Factor" (GTF) because it is most similar to the form that was originally isolated from a food source. CLASSIFICATIONS/CERTIFICATIONS: Vegan, Soy Free, Non-GMO GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation). Packaged in the USA by a family owned and operated company since 1968. During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.