21st Century Cal Mag Zn D3 is a comprehensive mineral supplement containing calcium, magnesium, zinc and vitamin D3. This formula provides essential nutrients to support bone health, immune function and overall wellness. Each bottle contains 90 tablets for convenient daily supplementation. Key features: • Contains calcium, magnesium, zinc and vitamin D3 • Supports bone health and strength • Promotes immune system function • 90 tablet supply • Easy-to-swallow tablets • From trusted brand 21st Century This mineral supplement combines key nutrients that work synergistically to maintain optimal bone density and support the immune system. Calcium and vitamin D3 are essential for bone health, while magnesium aids in calcium absorption. Zinc provides additional immune system support. The white bottle features a blue cap and clear labeling of ingredients. The product is manufactured by 21st Century, a well-known supplement brand.