Turtle nail is one of the common Yin tonics. The tortoise is also a “divine thing” in the eyes of ancient people, so the ancients have studied its life and routine, “the compendium of materia medica” records: “the tortoise to spring and summer out of the stinging off the armor, autumn and winter hidden cave guide, so the spirit and more longevity.” Zhang Shinan “quality turtle theory” records: “the turtle is old is God, the year to 800, but as big as money. In summer, it swims in the fragrant lotus, and in winter, it hides in the lotus root. Its breath has black gas like soot, in the heart of the lotus, the shape is very clear. People see this gas, do not be alarmed, but dive containing oil pipe spurt, that can not be hidden. Or cloud: the turtle heard the sound of iron will ambush, by the mosquito bite will die. Fragrant oil anointing eyes, then into the water does not sink. Old mulberry is easy to rot when boiled. All physical restraint of the wonderful also.” The historical story of tortoise oracle oracle bone script is the abbreviation of tortoise and animal bone script, which is also called “tortoise and animal bone script”, “divination script”, “divination script”, “divination script”, and “divination script”, It is also called “tortoise-and-bone script”, “divination script”, “ciwen”, “yin ci”, and so on. It is the earliest mature writing found in the Bronze Age (about 1339-1281 B.C.), inscribed on turtle nails, animal bones, and human bones by the Yin Shang to record divination and rituals. The tortoise armor is the thick shell of the tortoise, which relies on this layer of armor to avoid natural enemies, and immediately shrinks its head, tail and limbs into the shell at the slightest movement. “In short, in our lives, the turtle is the object of ridicule and contempt. But you know what? This is only the fate of the turtle now, in ancient China, the turtle was once an auspicious synonym, is considered a kind of communication between heaven and earth of the gods, the status is quite revered. The Book of Rites – Rites of Passage records: “What are the four spirits? Lin, Feng, Tortoise and Dragon are called the four spirits.” The turtle can actually be compared with the unicorn, phoenix and dragon these legendary animals, its high status can be seen. And the Ming Dynasty Li Shizhen’s “Compendium of Materia Medica” also has this record: “Three hundred and sixty beetles, and the tortoise for the long, up and the text to the law of heaven, the lower flat and the reason to the law of the earth.” The “upper” refers to the back of the tortoise, and the “lower” refers to the belly of the tortoise, meaning that there are three hundred and sixty species of beetles, with the tortoise being the longest, and the back of the tortoise is elevated and textured to symbolize the heavenly image; the belly of the tortoise is flat and textured to symbolize the earthly appearance. It may seem ridiculous and unbelievable to us today, but there was indeed a time in history when the tortoise was regarded as a symbol of heaven and earth and was given special respect. Moreover, the mystery surrounding the tortoise was greatly enhanced by its use in divination by the ancients. Origin and efficacy of tortoise nail Source: This product is the dorsal and ventral nails of the tortoise, family Tortoiseidae. It can be caught throughout the year, mostly in autumn and winter. After being caught and killed, the dorsal and ventral nails are peeled off and the residual flesh is removed, which is called “blood plate”. Or scalded to death with boiling water, stripped of dorsal and ventral nails, remove the residual flesh, and dried in the sun, called “scalding plate”. Origin: Hebei, Shaanxi, Henan, Jiangsu, Shandong, Zhejiang, Anhui, Taiwan, Jiangxi, Guangdong, Guangxi, Hubei, Hunan, Guizhou, Yunnan and other places are distributed. Taste: Sweet, cold; belongs to the kidney, liver and heart meridians. Effects: Nourishing Yin, submerging Yang, benefiting the kidneys and bones, nourishing the blood and tonifying the heart, and stopping bleeding. The effects of tortoise nail are to nourish yin and submerge yang, benefit the kidney and tonify the heart, and nourish blood to stop bleeding. Therefore, it can be used for: 1. Yin deficiency and Yang hyperactivity due to Yin deficiency of liver and kidney, Yin deficiency and internal heat, and Yin deficiency and wind movement evidence. It is long in nourishing kidney yin, nourishing liver yin, and can also submerge yang, and is often used with asparagus, white peony and oyster. 2. Weakness of tendons and bones due to kidney deficiency. Often used with Radix Rehmanniae, Radix Rehmanniae, Cortex Phellodendron and Radix Polygoni. 3. Palpitation, insomnia and forgetfulness due to deficiency of Yin and Blood. Often used in combination with Acorus calamus, Radix et Rhizoma Polygonati, Radix et Rhizoma Longan. 4. Deficiency of yin and blood heat, menorrhagia and excessive menstruation due to lack of consolidation of the flush. Especially suitable for deficiency of yin and blood heat, dissipation of the rheumatoid process and excessive menstruation. It is often used with Radix et Rhizoma, Scutellaria baicalensis and Radix et Rhizoma elm. In addition, this product is quenched by sand frying and vinegar, so that the active ingredients can be decocted more easily and the fishy smell can be removed, which is convenient for preparation.