The Colostrum Capsules contain the freeze-dried, cold-sterile filtered Colostrum Serum in powder form. This also means 100% Colostrum. The Colostrum Serum must be stored in the refrigerator after opening, whereas the capsules can be stored at ambient temperatures of up to 40 °C. This makes them particularly suitable for users who are often on the move. In addition, the Colostrum Capsules are tasteless. The Serum admittedly has a taste that takes some getting used to, so we recommend mixing it with juice or milk.