Pillar Performance Vitamin D3 Capsules deliver 25mcg (1000IU) of Vitamin D3 as Colecalciferol per soft-gel capsule, a convenient daily dose designed to maintain and support general health and wellbeing across multiple body systems. Vitamin D3 helps maintain and support bone health and bone mineralisation, and helps maintain and support teeth strength. Vitamin D helps calcium absorption, and a diet deficient in calcium can lead to osteoporosis in later life. This formula also works to maintain and support immune system health and healthy immune system function, making it a valuable daily supplement for those looking to support their overall health year-round. This product is listed on the Australian Register of Therapeutic Goods. Always read the label and follow the directions for use.