Sentinel D3 50,000 IU is a high-potency vitamin D3 supplement containing 50 softgel capsules. Each softgel provides 50,000 IU of vitamin D3 (cholecalciferol) to support bone health, calcium absorption, immune function and overall wellness. This high-dose vitamin D3 supplement is typically used under medical supervision for treating and preventing vitamin D deficiency. The softgel format helps with optimal absorption since vitamin D is fat-soluble. The amber glass bottle protects the supplement from light degradation to maintain potency. As with any high-dose supplement, this should only be taken as directed by a healthcare provider.