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The silver jewelry test lead is very unscientific It is powder without lead You take LancĂ´me to try the same There are people who think that alcohol-containing skin care products are not good It is very wrong to say that a small amount of alcohol is actually very beneficial to ** It can reduce inflammation and calm the skin and open pores So that after using the lotion will better absorb its nutrients.
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It's not a very scientific approach. If you think about it, it's not a chemically active substance, so how can you just rub it and there will be a chemical change. Isn't that all kinds of spontaneous combustion everywhere.
Anyway, it is impossible to exceed the standard, and our country must still be relatively strict in the management of heavy metals.
But it may be more than how many eights are contained. In fact, what excessive lead circulating on the Internet is not excessive, and what Dior's lipstick that was popular a while ago does not exceed the national standard, and it is far from it. It's more than the standard of an industry council or something like that, which is to test lipstick to the exact standard of children's candy.
So it's so scary to think that you're going to be exposed to a lot more dust and lead in your daily life than you are in those things
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yes, I think so, too.
And the powder is a little coarse.
Suitable for beginners.
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Yes, I suspect that the powder is over-specified.
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However, it is said that ZA skin care products contain alcohol, so I dare not try it.
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The six RoHS items include: lead, cadmium, hexavalent chromium, mercury, polybrominated biphenyls, and polybrominated diphenyl ethers. What you said is to detect whether lead and mercury exceed the standard, it belongs to the scope of RoHS detection, using XRF equipment to scan, you can detect whether it exceeds the standard, if you need accurate data, you need to use chemical testing.
Fantai Inspection uses Agilent equipment to accurately measure the corresponding results.
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Formal skin care products themselves will not contain toxic ingredients such as lead and mercury (raw materials may be slightly polluted, but the concentration is below the national standard), the real inspection agency is the Quality Supervision Bureau, their own personal make, and the detection methods rumored on the Internet have no specific scientific basis.
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How to identify whether cosmetics contain lead and mercury.
1. A glass of water to distinguish the quality of cosmetics.
There are a lot of cosmetics on the market, which makes MM picky, and now teach you how to distinguish between good and bad! All you need is a glass of water. Why use water?
Because we wash our faces with water every day, the molecules of water are close to the molecules of the water, so everything that can be dissolved by water can be absorbed by the water. Take an appropriate amount of your usual foundation or lotion and put it in water and watch it react.
2. Generally, three situations will occur: sticking to the edge of the cup, floating on the surface of the water, and sinking at the bottom of the cup.
These three cases illustrate the ingredients they contain. According to national regulations, the content of lead is less than or equal to 40 mg per kilogram, the mercury content is less than or equal to 1 mg per kilogram, and the arsenic is less than or equal to 10 mg per kg. Professionals say that although many products nowadays are labelled as natural, they are ultimately formulated with chemicals.
Among them, there are some spices, preservatives, and light repellents. In order to make huge profits, some merchants also put contraband in it, and all these harmful substances are hidden in the body like a time bomb. Lead and mercury have a good whitening effect in the short term, and it is almost impossible for whitening products to be lead-free, because without the help of lead, many ingredients are difficult to be absorbed, although lead is toxic, but it has a strong absorption capacity, so many whitening products have a certain dependence on lead.
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Lead cosmetics can achieve rapid whitening results in a short period of time, and after about 2-3 weeks of using lead cosmetics, they will be noticeably smoother, whiter, and the dark spots and acne will also fade quickly.
About half a year - 1 year after use, there will be problems: aggravation of dark spots, acne (acne), redness (telangiectasia), thickening of hair on both cheeks, facial erythema, peeling, tightness and a series of symptoms, once stopped, the symptoms will be more serious (because lead has a hidden phenomenon), so long-term use of cosmetics with excessive lead may irreversibly produce pigmentation, pigmentation will be very fast, and deepen and aggravate, or induce other serious complications, such as atopic dermatitis, cancerand even lead to disfigurement. In addition, the potential harm of lead to the whole body can damage nerves, digestion, urinary, endocrine, bones and so on.
Lead can also enter the fetus and infant through the placenta and breast milk, affecting the health of the next generation.
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Apply it to your hands, and then wipe it with a silver ring, if your hands turn black, it is contained.
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PowderIt will contain lead, as long as it does not exceed the standard, and the following is a method to test for lead and mercury exceeding the standard.
Methods for testing for lead and mercury exceedances:
Method 1: Take a little product and put it in a transparent cup filled with water, if there is sediment at the bottom of the cup, it means that it contains lead and mercury, if there is floating matter on it, it means that it contains minerals, and sticks to the edge of the cup, it means that it contains animal oil.
Method 2: Find a silver ornament and smear the cosmetics on it, the silver ornament turns black, indicating that there is lead and mercury in the cosmetics. This method is suitable for:All basic treatments and make-up
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Just look at the ingredients in the compact.
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There is a problem of how much lead and mercury is contained in cosmetics, and regular manufacturers will strictly control the content of lead and mercury.
Twenty or thirty years ago, cosmetics that deliberately added toxic ingredients such as heavy metals led to serious exceedances of heavy metals did exist, but now with the strengthening of national supervision of cosmetics, such problems have rarely occurred. Nowadays, there is a practice of using silver and water to test whether cosmetics contain heavy metals, and there is a way to say that cosmetics can be applied to the back of the hand, and rubbed repeatedly with silverware, if ** turns black, it means that it contains heavy metals. There is also a method that if the cosmetics are poured into clean water, if they sink, it means that they contain heavy metals.
This test method is not scientific, maybe some simple chemical reactions can be preliminarily judged, but if the content of heavy metals in cosmetics is small, then the measured results will not be accurate, let alone determine whether the heavy metal content exceeds the standard. Science brings us advanced products, and the concept of our consumers should also keep up with the pace of science and technology, and use scientific methods and attitudes to understand cosmetics. Nowadays, there are relevant instruments for the detection of cosmetics, and the test results are very detailed and accurate, but the cost of testing is very expensive.
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1 I feel good with Eperan all, and it's not expensive, 85 yuan. It looks natural, it seems that there are only two colors, I bought the natural color, you ** buy ivory white for nothing, rubbing other colors gives people the feeling that the face is not clean.
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I've used the Eppelance Thin Breathable Powder and it feels fine.
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I've been kissing Za!But today I found out that the mercury exceeded the standard!!
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I have been using za, the advantage is that it has strong coverage, can quickly change the dull complexion, and makes people refreshed, the disadvantage is that I don't feel very good about oil control, because I am oily**.
When I was in college, I used oprea, which is a Japanese formula, so it creates a natural and clear fairness of the skin, but the coverage is not good, and it is difficult to cover my pores, so I usually don't use Japanese powder, although it looks natural.
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The za color is really good...
The powder is very coarse, that is...~
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It's not right for you to identify it like this, now cosmetics have to go through security inspection before they can be bought on the market, and they are all unqualified, why did the General Administration of Quality Supervision, Inspection and Inspection go to Asia. There are many reasons for silver to turn black, not to meet lead to turn black, sulfur will also turn black, silver and sulfur have a great affinity, the determination of silver in the air when it encounters hydrogen sulfide gas or sulfur ions is easy to generate an extremely insoluble silver salt will undergo the following chemical reactions:
4AG+2H2S+O2=2AG2S (black product) + 2H2O
Moreover, the cosmetic ingredients are very complex, generally containing more than 30 ingredients, and some additives can also make silver black.
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It's all like this, now the bigger the brand cosmetics, the more terrifying, like SK-II
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It's not that easy to identify. The cosmetics themselves have regulations on the content of lead arsenic, and the impact on the human body within the specified content is very small. Ordinary cosmetics can be assured, but for special purpose cosmetics such as freckle removal should be careful, because mercury and its compounds are the main functional elements, and many manufacturers will use them in excess...
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Za loose powder looks the same as powder, it is powder-shaped and powder-puffed.
The Face Shop Powdery is also made with a puff.
The former is more convenient, and the latter is more cost-effective.
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