This ultra-premium plant based calcium and magnesium supplement is made from a unique trademarked ingredient called Aquamin. Aquamin is a nutrient dense form of algae grown in the pristine nutrient rich waters off Iceland. Calcium and magnesium from Icelandic red algae is a higher quality source of these minerals that is more absorbable in your body. This allows you to take a smaller dose than you might with synthetic forms of calcium for easy digestion. They also use minerals that are tested for heavy metals, vegan certified, non-GMO verified, dairy free, gluten free, soy free and that contain no artificial ingredients or chemicals. All products are produced under cGMPs (current Good Manufacturing Practices) and adhering to US FDA guidelines. All ingredients and finished goods are subjected to rigorous 3RD party analytical testing.