Net Wt. 2 Fl. oz (60 ml) Amount per 1.0 ml: Vitamin D3 (as cholecalciferol) - 15,000 IU Per one drop - 500 IU Inactive Ingredients: MCT Oil Recommended Usage: Vitamin D3 testing with VDI Lab is recommended to establish safe and effective dosage. Retesting in 8-10 weeks to ensure Vitamin D3 sufficiency is also recommended.