Physician's Choice - The health care professional's choice for high-quality supplements since 1984. We base our products on the latest wellness research and clinical studies, and use third-party testing for all incoming, in-process, and finished product. Products you can trust, at an exceptional value. Purity, Quality, Potency - No fillers, binders, preservatives, artificial colors or flavors. Vegetarian capsules. No gluten, egg, peanuts, tree nuts, or magnesium stearate. Supplements arrive in BPA-Free, recycled amber bottles that protect from light contamination. Keep Calcium Where It Belongs - Vitamin K-2 has been found to promote the synthesis of proteins involved with calcium utilization, helping to keep calcium out of arterial walls and in the muscles and bones where it belongs.*. Optimal Absorption And Tolerance - Calcium in the citrate/malate form is one of the most bioavailable forms of calcium and vitamin D is essential to maximize absorption of calcium.*. Do More For Your Bones - Our unique formula combines two powerful calcium boosters: Vitamins D-3 and K-2.*.