Harmfulness and identification of inferior cosmetics

Nowadays, cosmetics have become an essential daily necessities for Ms. Aimei. Thousands of cosmetics have been poured into the market. L'Oréal, Kaphulne, Maybelline, VOV, etc. Many makeup brands, even if some products are expensive, are still favored by women of beauty. However, while people are using a lot of cosmetics, it is easy to ignore the environmental and health problems that they bring.

Recently, the U.S. Alliance for Safe Cosmetics released a report saying that two Johnson & Johnson baby shampoos sold in the US, China, Australia, Canada and Indonesia contained quaternary ammonium salts of chemicals-15, "Formaldehyde released from this substance may cause cancer." . This incident caused people to pay more attention to the safety issues of skin care products and cosmetics.

Cosmetics are made up of matrix plus other ingredients such as antioxidants, preservatives, fragrances, surfactants, moisturizers, pigments, additives and skin penetration agents. Some inferior cosmetics may contain special additives, such as lead, mercury, arsenic, etc., which may cause poisoning or other adverse reactions. There are also antiseptics, pigments, and some enzymes that can cause adverse reactions.

1 The problems caused by excessive mercury in cosmetics The hazards of mercury over the human body: 1, can lead to pigment loss; 2, skin irritation; 3, cause skin damage; 4, cause accumulation in the body, causing various adverse reactions of the body, The most important is the central nervous system, such as insomnia, fatigue, poor memory, especially the changes in mood is very obvious.

2 The problems caused by excessive lead in cosmetics The harmful effects of lead on the human body In addition to its effects on the skin, it can also cause neurasthenia. After absorption, the digestive system also has some symptoms, such as constipation, loss of appetite, and severe effects. Liver function may be damaged.

3 The harm caused by arsenic in cosmetics The toxicity of arsenic is also great. If it absorbs poisoning after use, arsenic can also cause nervous system disorders, as well as some peripheral nerve lesions, such as hand numbness and foot numbness. Limb weakness, pain and other symptoms, there may be black skin, pigmentation.

In order to reduce the harm of using cosmetics, consumers must have the eye for identifying inferior cosmetics in the process of buying cosmetics.

The easiest way to identify the quality of cosmetics is to use a glass of fresh water for testing. Why water? Because we wash our face with water every day, the molecules of water are close to the molecules of the skin, so anything that can be dissolved by water can be absorbed by the skin. Put the amount of foundation or lotion you usually use into water and observe the reaction. Three things usually happen: stick to the edge of the cup, float on the surface of the water, sink to the bottom of the cup. These three situations illustrate the ingredients they contain:

1. It is animal oil that sticks to the edge of the cup. Animal oil is extracted from animals. Many animal bones and furs may have deteriorated before they are sold to cosmetics factories. The animal oils extracted from them may cause skin allergies after being added to cosmetics. Some manufacturers will be involved in the manufacturing process to prevent allergies. Add soothing and desensitizing agents to cosmetics. The soothing agent is an anesthetic for immune nerves. It will feel good when used at first, but it will not work long time. So many beauticians will suggest that a brand of cosmetics be used for 2-3 years. What is the change? Change is the soothing agent.

2, floating in the water is mineral oil. Mineral oil is extracted from oil. The first layer is used for gasoline; the second layer is lard oil; and the third layer is asphalt. Leptin oil is often added to cosmetics because of its moisturizing properties. However, leptin oil is impervious to air, which affects skin permeability and accelerates skin aging.

3, sinking in the bottom of the cup is heavy metal, lead, mercury and so on. Mercury, commonly known as mercury, is a toxic heavy metal. Mercury is a banned substance in cosmetics and is not allowed to be added artificially. However, some production raw materials used in some cosmetics contain trace amounts of mercury. A simple way to identify whether cosmetics contain tribute is to find a silver jewelry, put on the cosmetics, black jewelry will show that there are lead and mercury in cosmetics.

If you use a product that does not stick to the glass, does not float, and does not sink to the bottom of the cup, it means that the product is qualified and can be used with confidence.

In addition, when consumers choose cosmetics, they can bring a PH test paper and apply a small amount of product on the test paper. If the test paper turns dark green after a few minutes, it indicates that the substance is too alkaline.

If it is to buy lotion, there is a simple way is to shake the lotion, shake the bubble after watching. If the bubbles are rich and exquisite, there is a thick layer, and if it does not last long, it will be a good toner. If the bubbles are few, it means that the nutritional ingredients are less; if the bubbles are large and large, it means that they contain salicylic acid. Salicylic acid cleansing effect is better, but it is more irritant. Try not to use it for those who are sensitive to salicylic acid or skin. If you shake out a lot of very thin bubbles but soon disappeared, it shows that it contains alcohol.

As an ordinary consumer, it is not likely to understand the various technical aspects of cosmetic production. In general, choose a trusted manufacturer and brand, and at the same time really understand their own needs, and use some of the tricks to identify cosmetics targeted selection of products, basically can choose to satisfy the product.