To. Sang cuttlebone is the mantis family insects big cuttlebone, small cuttlebone or giant axe mantis dry egg sheaths, can be carried out to soak water to drink, soak the second day is required to pour, otherwise it will be counterproductive. Cuttlebone is a traditional Chinese medicine, for animal drugs, sweet, salty, flat, to the liver, kidney meridian, has the effect of tonifying the kidney and Yang.