Solgar, Chelated Copper, 100 Tablets ESSENTIAL COPPER: Copper is an essential trace mineral that supports connective tissues such as bone, skin, tendons and cartilage. It is also essential in the formation of collagen. BIOAVAILABLE: The formulation in these tablets provides a patented, highly bioavailable form of chelated copper KOSHER, GLUTEN FREE & SUITABLE FOR VEGANS: These tablets are KOF-K Kosher certified, non-GMO and certified gluten-free. They are free of: gluten, wheat, dairy, soy, yeast, sugar and sodium. They are also free of artificial flavors, sweeteners, preservatives and colors. The Gold Standard: For over 70 years, Solgar has been committed to quality, health and wellness. Our mission is to create the finest nutritional supplements in small batches, through tireless research, using only the finest raw materials.