Oterra, the largest provider of natural colors in the world, announces the launch of its extended caramel range. This enhanced product offering further bolsters natural vitality calm magnesium glycinateOterra’s impressive portfolio of colors from naturalferrous fumarate 152 mg elemental iron sources.Oterra, the largest provider of natural colors in the world, announces the launch of its extended caramel range. In May 2021 Oterra announced its’ acquisition of SECNA Natural Ingredients Group S.L., who was one of the largest prgnc magnesium flakesoducers of color from cairon fumarate syrupramelized sugar. Following the integration of SECNA into its portfolio, Oterra has added a full range of carameliron bisglycinate india products.