The function of softening is to open the internal structure of hair scales and hair, and the function of white vinegar is to reduce the PH value of softener. What really works is the water-soluble protein.
When the hair returns to a smooth state, wash and blow dry it, and you need to straighten it quickly with an electric splint, so that the hair will straighten.
Vinegar is a traditional condiment in major cuisines in China. According to the existing written records, the working people in ancient China used wine as a starter to ferment vinegar. Oriental vinegar originated in China. According to the literature, the history of brewing vinegar is at least 3000 years.
"Vinegar" was called "vinegar", "acyl" and "bitter wine" in ancient China. "Unitary" is the earliest word "wine" in Oracle Bone Inscriptions. At the same time, calling "vinegar" bitter wine also shows that "vinegar" originated from "wine".
The famous vinegars in China include "Mysterious Xiangxi" original balsamic vinegar, Zhenjiang balsamic vinegar, Shanxi mature vinegar, Baoning vinegar, Tianjin Liu Du mature vinegar, Fujian Yongchun mature vinegar, Guangling Debenbao vinegar, Qishan vinegar, Henan old turtle special vinegar and Redmi vinegar.
Vinegar is a fermented sour liquid condiment, which is mostly made of glutinous rice, sorghum, rice, corn, wheat, sugar and alcohol. Vinegar was called "strong" in ancient times.
Before the Zhou Dynasty, the word [ù] appeared in the royal family of the Zhou Dynasty, and there was already a "cù ré n", which was responsible for the supply of vinegar to the royal family. Japan still uses the word "vinegar" to call vinegar.