Twinlab Tri-Boron Plus Description: Chelated Boron with Calcium Plus Magnesium, Vitamin D3 and Co-Factors Gluten Free Tri-Boron Plus is a combination of three natural, highly utilizable chelated sources of the trace mineral Boron. Studies indicate that Boron improves Calcium Metabolism and utilization. Tri-Boron Plus capsules synergistically combine the trace mineral Boron with Calcium, Magnesium and Vitamin D plus trace minerals Zinc, Manganese and Copper, which are integral co-factors for several enzymes involved in bone metabolism. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.