Blackpool: The Japanese custom of dyeing teeth was introduced from North Korea. Japanese Pillow Grass, Diary of Purple Department and Glorious Story all mentioned: "Dressing (adult style for women), celebrating the day, the woman dyed her black teeth and turned red makeup ..." Dyed her black teeth on New Year's Eve ... "In The Story of Yan Na on the levee, it was mentioned that Worm Ji was beautiful and lovely, but no one asked her to be his wife, because she had finally dyed her black teeth. It can be seen that dyeing black teeth is an important part of makeup for upper-class women in Kyoto at the beginning of 12 century. This makeup method is gradually extended from women to men. Both officials and samurai have developed the habit of dyeing black teeth for a while. "Gong Dadun's biochemical light makeup in flat armor, dyed black teeth and then went into battle" has long been a much-told story. Both women's clothing (women's adult clothing) and men's clothing (adult clothing) should be dyed.

The iron paste used to dye black teeth becomes the ornament of teeth. Dyeing hair is regarded as a sign of adulthood. The descendants of samurai in Muromachi period in Japan will hold a "tooth dyeing ceremony" at the age of 9. Since then, children have entered the marriageable age, and villagers can't interfere with their communication.

Tooth dyeing, which started as an adult standard, gradually evolved into tooth dyeing on the day of engagement. Later, I dyed my teeth the night before I got married, and then I dyed my teeth when I gave birth. Finally, it becomes a symbol to distinguish married people from unmarried people. There was a time when illegitimate children were not allowed to dye their teeth, so there was a saying in society that "poor man, he (she) is a child who can't dye his teeth."

The process of making iron slurry is very simple. Iron filings are immersed in wine, tea, vinegar and slurry to produce black water. Then apply it to your teeth with a feather, pen or brush. In order to prevent color fading, Fructus Schisandrae powder can be added. This powder can also be used to strengthen other dyes.

In the sixth year of Meiji in Japan (1874), the imperial edict in the palace announced that "Empress Dowager, Empress Dowager and Imperial Iron Slurry were abolished ...". Except for some elderly people, most people in the folk quickly got rid of the habit of dyeing their hair.

Stroke and wear eyebrows: shave off natural eyebrows and outline beautiful shapes with eyebrow ink. Also known as "Dai" in Japan. During the Sui Dynasty, eyebrows were popular in China. The ladies of Nara era in Japan imitated the "Dragon Emei" of Sui Dynasty to decorate it. In Heian period, with the gradual japanization of clothing and makeup in Japan, eyebrow painting became a popular beauty form in Japan. Eyebrow pencil changed from horizontal length to semicircle. Then it becomes oval, slightly forward. Young people admire thick eyebrows. Old people like to draw thin eyebrows. Girls' eyebrows are also carefully drawn, and they are called "March eyebrows" and "line eyebrows".

Thrush and tooth dyeing in peacetime are symbols of girls' adulthood. Japan was banned by the government in the early Meiji period. After Meiji, women shaved off some eyebrows or pulled out some for plastic surgery, and wore them only as a repair. Recently, I began to advocate the cosmetic method of shaving off all eyebrows and completely repainting new eyebrows.