About 50ml. Deer blood crystals need to be taken with warm water. Add about 50ml of water for dilution. This can better ensure the release of its medicinal effects and nutrients. Therefore, add 50ml of water to 1g of a bottle of deer blood crystals. Deer blood crystal is specially used for anemia, especially for reducing leukocytes and platelets after tumor radiation and chemotherapy, supplementing nutrition, and improving cachexia. This product is taken orally, 1g each time, twice a day, take with warm water before going to bed.