In some places without soap feet, the ancients could also wash their hair with plant ash. Plant ash obtained by burning straw and rice straw looks dirty, but it is actually rich in potassium carbonate, calcium carbonate and other ingredients. When they come into contact with water, they will change from acidity to alkalinity, and then play the role of adsorbing oil and dirt, thus achieving the effect of cleaning hair. In order not to let the finely divided plant ash affect the cleaning effect, the ancients usually wrapped it in gauze and washed their hair with filtered water.
In ancient times, some people with better economic conditions also washed their hair with Taomi water. Water-soluble vitamins in rice washing water have strong decontamination effect, and also have anti-inflammatory and antipruritic effects. It is also very good to use as shampoo. But in ancient times, rice was not easy for ordinary people to get, so most people who washed their hair with Taomi water were rich and powerful.
In addition to the above three things, there are many things that the ancients used to wash their hair. This includes plant cleaning products, such as hibiscus leaves, sesame leaves and mulberry bark. In addition, the residue left after pressing rapeseed or tea tree oil can also be used for washing hair. Generally speaking, although there was no shampoo in ancient times, they were good at getting all kinds of cleaning things from their lives to wash their hair. It is on the basis of these things that later generations gradually invented cleaning products such as shampoo, soap and soap.