Vitamin D3 pharma grade: Usage:In pharmaceutical formulations for vitamin D remedy; As additives for milk, dairy, foods and beverage as vitamin D supplement to promote the absorption of calcium and phosphorus. Packing: Aluminum bags lined with food grade PE bags, then packaged into Aluminum Cans and in paper cartons. Stability and storage: Stored under dry, cool and dark condition and avoid moisture, water or heat. The shelf life is 24 months.