Nature's Bounty Vitamin D3 5000 IU provides a high-potency dose of vitamin D3 in rapid release softgel form. Each bottle contains 150 softgels designed to support bone and teeth strength, as well as immune system health. The supplement delivers 125 mcg (5000 IU) of vitamin D3 per serving. This USP certified supplement comes in a dark green bottle to protect the vitamin D3 from light degradation. The rapid release softgels are formulated for optimal absorption of this fat-soluble vitamin. Vitamin D3 (cholecalciferol) is especially important for individuals with limited sun exposure or those needing to maintain healthy vitamin D levels. The product is manufactured by Nature's Bounty, a trusted name in nutritional supplements.