2. Calcium carbonate is a mineral-based calcium supplement.

3. It is mainly used for the prevention of calcium deficiency, such as osteoporosis, tetany, osteogenesis imperfecta, rickets, and calcium supplementation for children, pregnant and lactating women, menopausal women, and the elderly.

4. Egg shells use: rubbing furniture.

5. Fresh eggshells washed in water, you can get a mixture of protein and water solution, with this solution to wipe the glass or other furniture, can increase the luster.

6. Clean hot water bottle.

7. Hot water bottle in the dirt, can be put into a handful of crushed eggshells, add some water, shaking left and right, you can remove the dirt.

8. In addition to the scale in the kettle.

9. Boiling water kettle has a thick layer of scale, hard and difficult to remove, as long as it is boiled twice on the eggshells, you can remove all.

10. Wash glass bottles.

11. Oil scale is not clean in a small neck glass bottle, put some broken eggshells, filled with water, placed 1 day ~ 2 days, the middle can be shaken a few times, the oil scale that falls off by itself.

12. If the grease is not serious, put some crushed eggshells in the bottle, add half a bottle of water, withdraw your hand to the mouth of the bottle, shake a few times, you can make the bottle clean.

13. Make a small emergency funnel.

14. To put the oil into the bottle, and can not find a funnel, can be replaced by eggshells.

15. Wash the eggshells, play a small hole in one end, it becomes a small funnel.

16. Make small crafts.

17. Complete empty eggshells, painted with oil can become arts and crafts.

18. Make the skin delicate and smooth.

19. A layer of egg white in the eggshell collected, add a small spoon of milk powder and honey, mixed into a paste, wash your face at night, put the egg paste mixed on the eyelids, washed after 30 minutes, often used in this way will make the face muscle delicate and smooth.