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Now when we watch TV commercials, there are a lot of advertising slogans that are silicone-free shampoos. So what exactly is silicone oil? Silicone oil is actually a common name, and its official chemical name is "polydimethylsiloxane", which can be understood as what people often call "smoothing agent".
It is viscous in liquid form, insoluble in water, but can easily dissolve in oil, and this transparent substance has very good physical properties. It is impermeable and chemically inert, and in fact, many skin care products and shampoos on the market contain silicone oil.
But silicone-containing shampoos are harmful to hair.
People feel it when they wash their hair with a shampoo that contains silicone oilHair becomes soft, in fact, this is just an illusion. Because silicone oil is insoluble in water, no matter how much water you rinse your hair with when washing your hair, there will be a lot of residual silicone oil on your hair.
Silicone oil adheres to the voids of the cuticle and fills the surface of the hair, so that when people touch the hair, it will feel very soft, so silicone oil is also a smoothing agent in disguise. It is precisely because of this residual silicone oil that adheres to the hair that it creates a feeling of softness.
If you keep using silicone oil shampoo, over time, your hair will be encased in a heavy layer of silicone oil, which will mix with the dust on your scalp to form more residue, which will accumulate over time and clog the hair follicles, which will not be able to carry out their normal metabolism due to clogging. Because it is impermeable, moisture from the outside world cannot enter your scalp and hair follicles. ThusHair follicles gradually shrink, causing hair loss and itchy scalpPhenomenon.
Therefore, when we usually choose shampoo in supermarkets or online shopping, we only need to pay attention to see whether the active ingredient content of the shampoo contains silicone oil and bad additives. And we try to choose ** when buying, so that the risk of buying a fake will be reduced a lot, so as to protect our scalp from damage.
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If you use this type of shampoo regularly, he will have a certain dependence, for example, your hair will be more and more oily than before.
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It is difficult to clean, and it will cause the keratin to not easily fall off and form a thick lump that sticks to the scalp, which will clog the pores, resulting in the hair not being able to absorb nutrients and drying and damage.
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If it contains silicone oil, then the hair will be severely damaged, and it will often lose hair, and it may also cause hair breakage, which is very damaging.
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Silicone oil is a macromolecular substance, which is not easily absorbed, can reduce the friction of hair, has the effect of protecting hair, and can also improve the brightness of hair strands and increase beauty.
Silicone-free shampoo means that the shampoo does not contain any silicone compounds on the surface. Tests report that almost 90% of shampoos contain silicone oil, and experts recommend that oily hair is best avoided with silicone-containing shampoos and used silicone-free shampoos.
People with oily hair secrete vigorously and secrete a lot of sebum, which is easy to cause bacterial growth, so choose a silicone-free shampoo to get rid of dandruff to a greater extent and make the scalp more refreshing and clean.
Consumers can choose shampoo according to their hair type, those with oily hair can choose silicone-free shampoo, and those with dry hair choose silicone-containing shampoo is more suitable.
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Silicone oil itself is not directly harmful to the hair, but it is more difficult to wash off when it sticks to the scalp, which may cause the keratin to be difficult to fall off, and form a thick lump on the scalp, which will block the hair follicles and cause dry and damaged hair.
Silicone oil is a colorless, odorless and non-rotten liquid that is not easy to volatile, and after adding silicone oil to shampoo, it will feel very smooth when washing hair.
Because silicone oil is insoluble in water, no matter how you flush your hair when you wash your hair, there will be a certain residual punch on your hair, and it is precisely because there will be residue that it can create a soft feeling. After shampooing, the "workhorse" of the shampoo is washed away, but the silicone oil "hugs" the hair tightly, filling the gaps in the cuticle, and it is precisely because of this that the hair becomes smooth and shiny. However, over time, the hair is "pressed down" by the thick layers of silicone oil and loses its elasticity, and the hair follicles are clogged and cannot be metabolized normally.
Silicone oil is insoluble in water, so external moisture cannot enter the scalp, and the hair follicles are "stuffy and thirsty", and eventually the hair is bound to dry up and be damaged.
In addition, if you only use one kind of shampoo containing silicone oil for a long time, and the same silicone oil is deposited on the hair, the more you wash it, the more oily it will be, and the more you wash your hair, the more serious the problem will be. Therefore, it is recommended to use different shampoos, one silicone oil can wash off part of the other silicone oil, and then redeposit a new one, so that at least the same silicone oil will not be deposited too much. Therefore, the shampoo brand should be changed frequently, at least after three months, or several different brands of shampoo should be used at home at the same time.
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1. Silicone oil is a macromolecular substance and will not be absorbed by hair follicles. There is not much silicone oil in the shampoo, and under the cleaning effect of the surfactant orange destroyer, plus a large amount of water rinsing, it will basically not remain on the head.
2. Most shampoos will add a small amount of PDMS, so that some hair care effects can be achieved while cleaning the hair. In fact, just as its hair care benefits are limited in terms of sales, the likelihood of PDMS remaining on the scalp to clog pores is also low. Because the content of PDMS in the shampoo is very small, less than 1%, almost all of it is cleaned out by the action of anionic surfactant that plays a cleaning role and rinsing with a large amount of water.
3. Conditioner, hair mask and other rinsing hair care products containing more silicone oil are used as long as they are applied to the end of the hair away from the scalp, which can be saved, and the second is that the hair cuticle damage at the root of the hair is generally small and large, and there is basically no need to care, and if it is rubbed on the hair root, it is not only greasy but also heavy and flattened.
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