1. p-phenylenediamine: p-phenylenediamine is a common aromatic amine compound and an important component of industrial dyes and hair dyes. It can enter the human body through the skin and respiratory tract, which is not conducive to human health. The harm of p-phenylenediamine to human body mainly includes allergy, poisoning, carcinogenesis and teratogenesis.
1, Allergy: p-phenylenediamine can increase the sensitivity of skin, mucosa, scalp and other parts, resulting in allergic manifestations, such as skin erythema, papules, blisters, bronchial asthma and so on. In severe cases, it can also lead to anaphylactic shock;
2. Poisoning: p-phenylenediamine has acute toxicity to human body. If used in excess, it will produce a series of poisoning symptoms. If p-phenylenediamine is used to dye eyebrows and eyelashes, improper operation will lead to blindness and permanent vision damage. P-phenylenediamine can also cause angioneurotic edema, which makes patients have symptoms of dyspnea, and in severe cases, it can also lead to rhabdomyolysis, and then acute renal failure;
3. Carcinogenesis: p-phenylenediamine can cause abnormal cell reproduction. If exposed for a long time, it may induce tumor diseases such as skin cancer, bladder cancer, lymphoma, leukemia, bone marrow cancer, breast cancer, etc., which has certain carcinogenic hazards;
4. Teratogenesis: Because p-phenylenediamine can interact with topoisomerase and promote DNA breakage, long-term exposure of pregnant women may lead to fetal chromosome abnormality, which may lead to fetal developmental malformation.
Second, resorcinol: resorcinol is harmful to the human body. Resorcinol is a compound, which is toxic, irritating and flammable. When it is decomposed by heat, it will release toxic gases. After being absorbed by the human body, it will lead to headache, dizziness, lethargy, convulsions, dyspnea, decreased body temperature and blood pressure, and even death. Long-term low-concentration exposure can cause respiratory irritation and skin damage. When more than 3% aqueous solution is applied to the skin, it will cause poisoning and even death after being absorbed.
Third, hydrogen peroxide: peroxide, also known as hydrogen peroxide, is a strong oxidant, which can cause damage to mucous membrane, respiratory system, digestive system and epidermis. The first hydrogen peroxide vapor stung the cornea, nasal mucosa and throat mucosa, all of which were harmful to the mucosa. Dyspepsia: Eating by mistake will corrode esophagus, stomach and duodenum, causing gastric bleeding, gastric ulcer and gastric perforation. Third, the main causes of respiratory tract injury are acute laryngitis, acute pharyngitis, burning bronchitis, severe cough and hemoptysis. The fourth kind of skin injury can be: excessive oxidation and whitening of skin, burning local epidermis.
As long as it contains the above ingredients, long-term use will cause harm to the human body. As far as I know, bubble dyeing basically contains these ingredients. In the process of dyeing hair, if your skin is exposed to these things for a long time, it will enter the body through transdermal absorption of the skin, destroying the immune system of the human body and causing permanent damage. In fact, among all hair dyes, bubble dyeing is the most harmful to human body, because the so-called shampoo ensures that the hair dye will contact your skin from the beginning, and it usually takes 20 to 40 hours to dye hair.