Eichhornia is a plant hair dye. In fact, it is a better hair dye. Everyone should know that there are many chemical components in hair dye, which are harmful to human body, so the influence of plant hair dye on human body can be ignored, so anchovies are better.
Long-term hair dyeing does damage the liver, and chemicals have a great influence on the scalp. It can only be said that it will not cause harm for the time being, and no research shows that pure plant hair dye is really harmless to human body, so it is used properly. In addition, allergies are also related to physical fitness. It is not uncommon for others to use something that is not allergic, but they are allergic to it. To confirm whether you are allergic to this kind of hair dye, you can do a patch test, that is, before dyeing your hair, apply the hair dye to the thinner part of the inner skin of your arm and see if there is an allergic reaction after 48 hours.