Four hazards of dyeing hair, I really regret dyeing my hair. According to epidemiological statistics, 50% people will be infected with 1 time at least in their lifetime. The second hair.
Have you noticed? After dyeing your hair several times, it will dry up, break or even fall off.
Let's look at the ingredients of hair dye: the main ingredients are p-phenylenediamine and hydrogen peroxide, which can fix the color after dyeing, but they are also strong allergens. People with sensitive constitution can cause skin allergies, among which contact dermatitis is the most common.
It also affects hematopoietic stem cells and is recognized as a carcinogen.
Many people know that it is best not to dye your hair more than twice a year. Do you think there is no danger?
Fatal danger 1: cancer
Researchers at Yale University in the United States surveyed women who started dyeing their hair before 1980, and they found that people over 1/3 would develop lymphoma.
There are many international studies on whether hair dyeing causes cancer, but whether it causes cancer is still controversial. However, since the late 1970s, some ingredients in hair dyes that have been proved to cause tumors have gradually disappeared from the formula.
Fatal hazard 2: skin allergy
In French, German and other EU countries, p-phenylenediamine (the main component of hair dye) has been banned from being added to hair dye, but it is still used in China. You'd better look at the ingredients of hair cream when dyeing your hair.
Fatal injury 3: damage to liver and kidney
In order to enhance the dyeing effect, some products on the market will add heavy metals such as lead, mercury and arsenic, and some products even have a lead content of 5? 10 times, long-term use will cause chronic damage to the body, not only lead poisoning symptoms such as dizziness, numbness of limbs, abdominal pain, but also damage the functions of organs such as liver and kidney.
Fatal hazard 4: hair loss
Benzene compounds such as p-phenylenediamine in hair dye can penetrate into the important part of hair-the stratum corneum, and undergo peroxidation, which leads to hair drying, breakage and even hair loss.
What problems should we pay attention to when dyeing hair:
2. Don't dye your hair in foggy days: Hair dye contains harmful secondary amines, which can react with tobacco smoke or waste gas in the air to form nitrosamines, a strong carcinogenic chemical. Therefore, the risk of cancer caused by dyeing hair in haze days may be higher.
3. Harmful perm: Most potions used for perm contain alkaline components and oxidants, which will damage the surface layer of hair and make the internal structure of hair unprotected, resulting in yellow hair, brittle hair, no elasticity and luster. At this time, dyeing hair is undoubtedly worse for damaged hair.
Network mapping
In fact, black hair is also very beautiful. For your own health, you'd better not dye your hair. For some young bald friends, while dyeing their hair, we should pay attention to improving immunity, enhancing the body's detoxification function, and not letting diseases find us.
Friends who often dye their hair can often eat the following foods:
1, Cao: cancer prevention
Li Wang grass is sweet, pungent, slightly bitter, flat in nature, and enters liver and kidney meridians. Traditionally used to treat nephritis, renal atrophy, renal failure and kidney calculi, it is the savior of patients with kidney disease.
Cao
Modern science has confirmed that triterpenoids, glycosides, flavonoids, chlorophyll and other substances contained in Wang Cao are all anti-tumor substances. Therefore, Leymus chinensis has extensive anti-tumor effects.
2, perilla oil: anti-allergic, liver protection
Perilla oil has antiallergic effect and can be used to treat allergic symptoms caused by fish and crabs in clinic. What is its antiallergic active ingredient? Linolenic acid and its metabolites EPA and DHA can reduce the production of leukotriene B4, reduce the adhesion and aggregation of neutrophils, monocytes, macrophages and leukocytes with vascular endothelial cells, and reduce the inflammatory reaction that damages endothelial cells, thus preventing the occurrence and development of allergic reactions.
Perilla oil
Eating 5ml perilla oil every day can also protect the liver. The mechanism may be that linolenic acid contained in perilla oil can increase long-chain n-3 series unsaturated fatty acids in liver membrane, thus activating liver function.
3. kelp: purifying blood
Giant algae
Kelp is not only a food with high iodine content, but also rich in dietary fiber and gum. Colloidal components can combine with harmful substances in blood, such as heavy metals, and have the functions of detoxification and blood purification.