For many women, cosmetics is an essential element in daily life. Cosmetics is a smear, spray or other similar methods, applied to any part of the body surface (skin, hair, nails, lips, oral mucosa, etc.) to achieve clean, eliminate bad odors, skin care, beauty and grooming products purpose. With people's living standards improve, cosmetics and daily life increasingly close relationship, and now features gradually from simple cosmetic cosmetic modification to the functional aspects of an extension, there were many types of special purpose cosmetics. In recent years, a variety of brands of sunscreen, speckle, wrinkle reduction, wrinkle, whitening and other cosmetic products in the domestic market has emerged for people to provide care facilities. However, it is difficult to imagine that if you make every day within a year will absorb two kilograms of hazardous substances! This is not alarmist, especially in the hot summer, most of the body capillaries open, whole body blood circulation, but will increase in harmful chemical absorption. In this article, I will give you a comprehensive analysis of the composition of hazardous substances in cosmetics, composition, functions, and harm, I hope you read this article, the cosmetics have a more profound and sober understanding.
Hazardous substances in cosmetics, can be simply divided into the following categories: inorganic heavy metals (including arsenic), cosmetics stabilizer, organic solvents, spices, antibiotics and hormones. These harmful substances harmful to human health can be divided into the following four categories. Irritant damage: This is the most common form of skin damage, irritation and cosmetics containing ingredients or cosmetic PH value is too high or too low, or the user skin cuticle damage. Allergic injury: cosmetics contain allergens, so that users with allergic constitution allergic reaction. Infectious injury: cosmetics rich in nutrients, with a favorable environment for microbial proliferation. Use of microbial contamination of cosmetics can cause harm to human infection of damaged skin around the eyes and other parts of the injuries and more. Systemic injury: a variety of cosmetic raw materials, although many elements have a cosmetic effect, but the human body may have a variety of toxic; some components may itself be non-toxic, astaxanthin but in the course may also produce toxic substances (such as phototoxicity). These toxic components can be absorbed into the body through the skin and accumulate in the body, causing systemic damage to the body.
Lead, as a common heavy metal, its toxicity and toxicity are well known. In cosmetics, lead oxide has a long history as additives, cosmetic products containing lead, once popular, the former royal family are abroad it preference for me. Ming and Qing dynasties, when the use of Magnificence is the prototype of powder, which is the main component of lead oxide. Lead oxide powder showed pure white, has a strong attachment and the ability to cover, until modern times, is still covered products such as foundation, powder of the main components. Today, lead has been disabled for almost all sectors of the ingredients in the concealer products is used in more titanium dioxide (titanium dioxide), zinc white powder (zinc oxide), etc. However, due to lead oxide powder concealer obvious effect, adhesion, low cost, is still a lot of cosmetic companies, especially those three products, biotin which still use a lot of lead oxide as the main ingredient, and this will cause great bodily the harm. In addition, some cosmetics, the use of raw materials, impurities, doping other metal components in a small amount of lead, because the user long-term use, can also cause accumulation of lead poisoning. Current state regulations, the maximum limit of lead in cosmetics and 40 mg per kg. Lead is toxic to all living things. Lead and its compounds absorbed through the skin and harm to human health, mainly affect the hematopoietic system, nervous system, kidneys, gastrointestinal tract, reproductive function, cardiovascular, immune and endocrine systems, particularly those that affect fetal health. The main clinical manifestations of central nervous system function as a result of the emergence of disorder neurasthenia syndrome. Acute or subacute encephalopathy. Movement disorders. Digestive system, loss of appetite, metallic taste in the mouth, lead of the face, gingival lead line, abdominal cramps, nausea, vomiting, diarrhea. Hematopoietic system in the hemoglobin is low, normal red blood cell anemia or small cell anemia, stippling of red blood cells, red blood cell network increased. Other lesions of toxic hepatitis, hepatomegaly or jaundice, kidney has some damage, resulting in oliguria, anuria, hemoglobinuria, causing nephritis or renal atrophy, can also cause myocardial damage, heart failure.
Mercury in cosmetics mainly exist in two forms mercuric sulfide and mercuric chloride. Mercuric sulfide, also known as cinnabar, is a very commonly used in paint, commonly used in inks. In cosmetics, mercuric sulfide is generally added to the lipstick, rouge and other cosmetics in bright colors lasting, although the mercury sulfide solubility in water is extremely small, but the use of part of it is the mouth, and long-term use, it will cause some harm. In contrast, water-soluble mercuric chloride more dangerous. Mercuric chloride used in cosmetics with white, and delicate features, mercury ions can interfere with tyrosine into melanin in human skin in the process, is generally added to whitening, whitening, speckle cosmetics, especially some cheap whitening Soap, by frost and so on. Low price of these substances, so the mercury sulfide, mercuric chloride, even in modern cosmetic manufacturers use. Mercury and its compounds can enter the body through the skin barrier all the organs and tissues, mainly kidney damage, minoxidil followed by the liver and spleen, destroyed enzyme system activity, the protein coagulation, tissue necrosis, with significant gonadal toxicity, embryo toxic effects and cell genetics. Chronic toxicity of mercury and its compounds, the major clinical manifestations: fatigue, weakness, lethargy, apathy, emotional instability, headache, dizziness, tremors, and will be accompanied by hemoglobin levels and red blood cells, white blood cell count decreased, liver damage, etc. , in addition to peripheral sensory loss, concentric narrowing field of vision, hearing impairment and the Masonic movement disorders and so on. Mercury is generally used as an additive, if you see a white sheet on a quick, instant whitening and other words, we must be careful of which may contain mercury compounds. Current state, the mercury and its compounds in components for the cosmetics banned chemical substances, as impurity is less than its limit of 1mg/kg. One exception is that, in view of thimerosal (ethyl mercury thio salicylate) with good inhibitory effect, allowing for eye makeup and eye makeup products, the maximum permitted concentration of 0.007% (in terms of mercury).
Cadmium and its compounds are banned for cosmetic components. Zinc compounds commonly used in cosmetics, tretinoin its raw material sphalerite often contain cadmium, for which, as impurities in cosmetics content shall not exceed 40mg/kg (total cadmium). Cadmium toxicity is very small, but is highly toxic cadmium compounds, in particular, cadmium oxide. Cadmium and its compounds, mainly the heart, liver, kidney, skeletal muscle and bone damage. Inhibition of enzyme activity. Cadmium can damage the calcium and phosphorus metabolism and the metabolism of trace elements in series, such as zinc, copper, iron, manganese, selenium. The main clinical manifestations of hypertension, heart expansion and premature death of children, induced lung cancer. Cadmium does not play the role of beauty, it is generally not used as an additive manufacturers to cadmium. Cadmium as impurities mainly in the foundation, powder and other products containing zinc oxide. At present several major brand-name products as raw material to the procurement chain has a strict control, so you can rest assured that their products use. The market lot of cheap non-brand products, due to insufficient purity of raw materials, its products cadmium is much higher than the national standard, so try to avoid long-term use of no-name powder.
Arsenic is the addition of lead and mercury in cosmetics other than the most harmful elements. Arsenic and its compounds widespread in nature, Cosmetics material  and cosmetics production process can also be easily contaminated with arsenic, so as impurities, arsenic in cosmetics in the limit of 10mg/kg (total arsenic). The toxicity of arsenic and arsenic compounds and their solubility in water related to arsenic trioxide soluble in water, very toxic, are highly toxic; arsenic and a variety of amino acids of the protein has strong affinity with a variety of thiol-containing enzymes combination of loss of activity, resulting in cell respiration and oxidation of the barrier, cell division occurs disorder, caused by the nervous system, liver, kidney, capillaries and so produce a series of lesions. Long-term low-dose exposure can lead to chronic arsenic poisoning, dizziness, headache, weakness, limb pain, nausea, vomiting, loss of appetite, liver pain, abdominal distention, diarrhea, anemia, skin pigmentation and other symptoms. Acute arsenic poisoning manifested as acute gastroenteritis, shock, toxic skin inflammation, liver and central nervous system symptoms. Direct skin contact with arsenic, may be dermatitis, eczema, folliculitis, and skin keratinocytes and other skin damage, Repeated exposure may cause skin cancer. Arsenic but also through the placental barrier, resulting in fetal malformations. Arsine is a strong hemolytic poison, absorbed a large number of red blood cells can collapse, the escape of hemoglobin, resulting in a hemolytic consequences. Source:http://www.cosprm.com