Do all foundations contain lead? How do you test if a liquid foundation contains lead or mercury?

What should I do if chemicals contain heavy metals such as lead and mercury, which are harmful to the human body? The college students of science education at Chongqing Normal University will teach you to identify: if it is foundation, BB cream, barrier cream or the like, you can squeeze a drop into clean water.

If the foundation spreads out and sticks to the wall of the cup: this means that the foundation contains too much animal oil, which is not good.

In order to keep the products fresh, additives such as pacifiers and desensitizers will be added during the manufacturing process, which will damage **.

If the foundation floats on the water: Contains light oils. Although such a foundation has a good moisturizing effect, your face will be like being coated with a layer of oil, which is not breathable, and may clog pores, which will be rough for a long time.

If the foundation sinks to the bottom of the cup: this indicates that the foundation contains heavy metals such as lead and mercury.

This kind of foundation is qualified: only a foundation that does not stick to the rim, does not float, and does not sink can be used with peace of mind.

Lead is a toxic heavy metal that is extremely harmful to the human body, so lead and its compounds will cause harm to many systems such as nerves, hematopoiesis, digestion, kidneys, cardiovascular and endocrine after entering the body, and if the content is too high, it will cause lead poisoning. With the rapid development of the industrial market, lead is widely used in all walks of life, and lead is becoming more and more polluting to the environment and harmful to human health. At present, lead mainly affects human health through food, drinking water, air, etc.

After metallic lead enters the human body, a small part will be excreted with the body's metabolism, and the rest will be deposited in the body.

For adults, the invasion of lead will destroy the nervous system, digestive system, male reproductive system and affect the hematopoietic function of bones, and then people will have dizziness, fatigue, dizziness, drowsiness, insomnia, anemia, low immunity, abdominal pain, constipation, limb soreness, muscle and joint, menstrual irregularities and other symptoms. Some have a metallic taste in the mouth, and symptoms such as arteriosclerosis, peptic ulcers, and fundus hemorrhage are also associated with lead contamination. <>

There is no need to add lead to the foundation. In ancient times, there was lead powder, and the so-called washing of lead is what it means. However, lead has long since ceased to be used.

Of course, if you want to drill the horns, everything will inevitably contain lead, including air, but this is only a trace element and will not affect human safety. The upper limit of the safe level of lead in cosmetics should be 10 ppm. This level belongs to the inevitable raw material brought in.

And if you add it deliberately, you don't know how much, in fact, no one is stupid enough to deliberately add lead.

There is one of the best ways to check if it is a liquid foundation.

Leaded. Apply the liquid foundation evenly on the back of your hand, and gently scratch it a few times with an 18k ring, if the black is heavy, it means that it contains a lot of lead. Generally speaking, no matter what brand of foundation liquid is applied very white, it will definitely contain lead, but it is only a matter of how much it contains.

If it is within the specified lead range, it is still not likely to cause harm to the human body. <>

I recently did a cosmetic experiment, and the red BB of the previous mystery was not very popular, so I bought it and used it, and the result was that I could see the BB in the pores after I used it, and the pores were infinitely enlarged. Then I wanted to change it, it just happened that Han Shu's red bb was also very popular, so I bought one, only from the use of Han Shu's bb has been acne, I understand the reason, acne marks after acne are not good, one after another, I know that half a year later, I did an experiment, Han Shu bb was smeared on the back of the hand to ** absorption, and then rubbed back and forth on the back of my hand with my silver ring, as expected, it really turned black, and the answers on the Internet are endless, saying that this phenomenon is BB contains heavy metals such as lead, and some say that this method is not suitable, But the reason for this is that, in general, silver is relatively stable. <>

We can also use a coin to detect if the lead in the foundation is exceeded. The specific operation is to take a small amount of liquid foundation and apply it to a piece of white paper, and then use the coin façade to keep pulling back and forth, if there is no change, it means that it does not contain lead, if it turns black, then the darker it means that it contains more lead.

There are three ways to identify if a cosmetic product contains excessive lead and mercury.

1. Take out a little makeup, apply it on a piece of white paper, or a thin plastic film, and put it in the sun (or natural environment), if it turns black, it means that the skin care products may contain excessive lead.

2. Smear a little cosmetics on the white paper, wait for a while, wait for it to penetrate on the paper, and then scratch back and forth with the façade of the coin, if there is no change, you can preliminarily indicate that it does not contain lead, if it turns black, it means that it contains lead, the darker the color, the higher the lead content.

3. Take some cosmetics and drop them in clean water, if it sinks to the bottom of the water, it contains heavy metals such as lead and mercury, and if it floats on the surface of the water, it means that it contains animal oil, which is not good for breathing, and it is best to melt in water.

The foundation liquid contains lead and mercury, and the quality is a little worse, so when buying these cosmetics, you must choose a better one, in fact, a little bit of it will be in it after a little better. However, good cosmetics have fewer chemicals in them.

Nowadays, the living standards of individuals and families are improving, almost every family has a refrigerator, and there will be a variety of food stored in it, especially in summer, the refrigerator has become an electronic device in our lives to allow you to survive. Whether you buy a lot of meat, vegetables and fruits, they will be put in the refrigerator to prevent them from rotting and spoiling, and many people store some longan and ice cream in the refrigerator to prevent heatstroke and cool down.

But how long can frozen meat at home last in the refrigerator? Maybe the length of time between summer and winter may be different, here with you to ** answer related questions, for the health of the body may wish to understand.

1. How long can you not eat frozen meat in the refrigerator at home? Regarding the shelf life in it, you should know.

Food in the refrigerator does not mean that there is no expiration date, whether it is frozen or refrigerated, it will have its shelf life, and the storage time and shelf life of each type of food are different, let's find out the specific situation together.

Red meat about this kind of meat mainly consists of pork, beef, lamb and some other quality foods in the refrigerator can be put in a place where it can be frozen for about 10 to 12 months. Among them, the freezing time of beef is longer, and the shelf life of lean meat is relatively longer than that of fatty meat.

The so-called poultry meat refers to chicken, duck, goose meat and so on. These are tired and cold and the storage time will generally be slightly shorter than that of red meat, about 8-10 months.

Seafood, whether it is seafood or the things inside, is generally fish, shrimp, turtles, shellfish and other foods, such foods are not very long in the freezing time, generally not more than 6 months, so it is recommended that even if you freeze fresh things in the refrigerator, you should ensure that you eat them within 4 months.

For frozen food, we must do some important processing before freezing, otherwise it will affect the shelf life of meat and other foods, so the internal organs of the food should be cleaned before freezing, so it may be possible to extend the life and shelf life of the freezing. In addition, avoid using frozen food for a long time, because eating frozen food for a long time may also lead to poisoning, accelerate aging, and reduce the body's immune function, so you must pay attention to it, and never freeze it for too long in the future. When buying food, it is best to buy and eat food for up to a week, so as to not only keep the food fresh, but also help the body's health.

I think it's best to keep no makeup, even if you wear makeup, there must still be some chemicals on your face, which is also harmful to **.

Don't buy cheap cosmetics, the quality is definitely not up to standard. Don't buy anything that tastes too fragrant, because spices are used to mask the flavor of the additives. The whitening effect is particularly good, and the lead is also exceeded. It is better to use cosmetics that have no taste, because the additives used are harmless.

Choosing a mildly acidic cleanser is a great way to cleanse**. How can I tell if a cleanser is alkaline? A pH test strip will solve the problem, apply a small amount of product to the test strip, and if the test strip turns dark green after a few minutes, it indicates that there is too much alkaline content in the substance.

There are also good ways to detect creams. Take a small amount of cream and put it in a spoon, heat it with an alcohol lamp or candle, and the product that meets the criteria will be like the state formed by boiling milk, the taste will not change, and it will be more intense. If there is splashing, thick smoke during combustion, the smell becomes choking, and there is oil residue at the bottom of the spoon after burning, it means that the mineral oil exceeds the standard or has boride filling.

There is another method, the cosmetics are poured on the bracelet (it must be sterling silver), and if it turns black immediately, it must contain excessive lead.

Now everyone is afraid that when choosing cosmetics, we will buy products that contain some harmful substances, especially those containing some heavy metal elements, such as lead, because in the early last century, cosmetics were added with lead, and lead had a good coloring effect. So, does the liquid foundation we usually use contain lead?

Does liquid foundation contain lead? Does liquid foundation contain lead? (1)

1. Some brands contain.

As mentioned above, lead is a substance with a relatively high degree of coloration, which has been widely used in some cosmetics in the last century, and lead is harmful to the human body, but it does not mean that the cosmetics produced now will not contain lead. Because there are many cosmetics that do not comply with some ingredient regulations, and of course, some inspection mechanisms are also problematic, so there are still some foundations containing lead on the market.

Does liquid foundation contain lead? Does liquid foundation contain lead? (2)

2. Try to choose a good brand.

When we buy liquid foundation, in order to buy products that do not contain some harmful substances, such as lead, we need to look for some brands. The cosmetics brands on the market are actually relatively messy, with high, medium and low-end products, so it is recommended that you choose a better brand, because the requirements and supervision of ingredients will be stricter for better brands, and generally do not contain or only a few contain harmful substances.

Does liquid foundation contain lead? Does liquid foundation contain lead? (3)

3. The concealer effect is better.

Among all the foundation products, liquid foundation is the one with the best concealer effect. In fact, after doing a good job of basic moisturizing, after applying isolation, and then applying the foundation, the entire base makeup is basically completed, and the effect of the entire base makeup is also out, but at this time, there should actually be another step, which is to set the makeup. Generally, after the final base makeup is completed, you can use some setting products, such as loose makeup setting powder, after setting makeup, the durability of the entire base makeup will be higher.

Inferior ones definitely contain mercury and lead, so it's best to buy a brand, wipe the face like something else, and if you touch it, you have to spend more money to treat it. I also used to spread cheap, ** it was very rough, very dry, and the products with hormones were rotten face.

Foundation liquid is a cosmetic product should not contain lead and mercury, these are toxic substances, and the State Quality Inspection Bureau should strictly investigate.

Under normal circumstances, skin care products with whitening effects will contain lead, so they must be thoroughly removed and not sloppy.

I suggest you try it like this:

1. Prepare a cup (preferably larger, glass or paper cups) <>

2. Pour the cup with water.

3. Take a little foundation (one drop is good) and pour it into clean water, if the foundation sinks to the bottom of the water, then this foundation contains heavy metals such as lead and mercury.