[Huicong Water Industry Network] In recent days, the news that “silicone oil in shampoo can cause hair loss” has made many beauty-loving ladies alert. This kind of thing that is insoluble in water and can block hair follicles may harm the hair. , so how can we avoid it? So many people turn their attention to homemade shampoo sold online. However, professionals warn that because the ingredients of this type of homemade shampoo are difficult to understand, it is in the interests of consumers that it is best not to buy them.
(Jiangxi New Materials Co., Ltd.)
Survey: More than 90% of supermarket shampoos contain silicone oil
Yesterday, the reporter visited many supermarkets in this city and checked the ingredient list of shampoo in the toiletries section. As a result, a substance called polydimethylsiloxane can be found on most shampoo bottles. substance, which is commonly known as silicone oil. The reporter carefully observed that there are dozens of types of shampoos on supermarket shelves. More than 90% of the shampoos have “polydimethylsiloxane” in the ingredient list, and there are only a few silicone-free shampoos.
The reporter reviewed the information and found that polydimethylsiloxane is a polymer composed of silicon as the basic unit. Silicone oil is added to shampoo, mainly for smoothing. It is understood that if silicone oil is not added to the shampoo, the hair will be very astringent after washing.
Industry insiders say that in fact, washing and care should be completely separated. Shampoo is mainly for cleaning, while hair care should be completed by professional hair care products. However, many years ago, after some brand shampoo advertisements desperately promoted the smoothness and smoothness, this kind of two-in-one shampoo with added silicone oil became a trend, which evolved into the current situation of generally adding silicone oil.
Statement: Hair loss is not caused by silicone oil
Regarding the use of silicone oil-containing shampoos that can lead to clogged hair follicles, itchy scalp, and may even cause hair loss, hair loss and other problems, the reporter interviewed a professor from the School of Chemical Engineering of Dalian University of Technology. The professor said that silicone oil is an inert substance. , basically does not react chemically with other substances, and is widely used in industry for lubricating oils, heat transfer oils and defoaming agents. Emulsified silicone oil is added to the shampoo. When using this shampoo, the silicone oil will form a film on the surface of the hair and scalp. On the one hand, it has a smoothing effect, and on the other hand, it can also isolate dust and water.
The professor told reporters that the types of silicone oil are divided into pure silicone oil, bio-silicone oil and industrial silicone oil. The former two are of better quality, while the latter is of worse quality. If pure silicone oil or bio-silicone oil is added to the shampoo, , then the quality should be relatively guaranteed. In general, hair loss caused by the use of silicone-containing shampoos is very rare.
In this regard, a dermatologist in this city also has the same view. According to him, in modern society, many people do suffer from hair loss or hair loss. However, there are many reasons for hair loss or hair loss, such as alopecia areata caused by mental stress, seborrheic alopecia caused by endocrine reasons, etc. In fact, under normal circumstances, hair loss or hair loss is mostly related to mental factors. In daily consultations, only a few The cause of hair loss in some people is related to shampoo. “As long as you don’t use harsh shampoo, it won’t be a big problem.”
Phenomenon: Selling homemade shampoo online may pose health risks
During the interview, the reporter learned that some beauty-loving ladies began to buy homemade shampoo online after hearing that silicone-containing shampoo can cause hair loss.
Yesterday afternoon, the reporter searched for “homemade shampoo” on Taobao and found a total of 395 products, including homemade anti-hair loss shampoo, homemade soap locust shampoo, homemade ginger shampoo, and homemade pure Chinese medicine shampoo. . When you click on a product, you can see that the seller has put the raw materials and process of making the homemade shampoo on the web page to prove that it is purely natural and has no additives.
The reporter found that the prices of homemade shampoos sold online vary widely, ranging from 15 to 16 yuan for a cheap one and more than 200 yuan for a bottle of expensive ones. A 500 ml homemade shampoo with soap and Chinese medicine is priced at 75 yuan, and another homemade ginger shampoo priced at 38 yuan has monthly sales of 806 units. Most of these products are advertised as pure and natural to attract netizens to buy them.
Director Sun of the Chemical Center of Dalian Product Quality Supervision and Inspection Institute told reporters that there are also companies that produce shampoo in this city. When testing shampoo, the inspection institute will detect pH value, active substances, heavy metals, etc. in accordance with relevant health regulations. In addition, shampoo belongs to the category of cosmetics and must have a production license before it can be produced. Production companies need to have corresponding software and hardware. Regarding these homemade shampoos sold online, Director Sun said that these shampoos are mostly processed by some family workshops, and the venue and hygiene are not guaranteed. The products should fall into the “three noes”. “Consumers cannot judge homemade shampoos at all.” What substances were added to it and used rashly?�There may be health risks. “Director Sun said.
Silicone oil is mainly used in two-in-one shampoo
●Silicon oil, namely polydimethylsiloxane and its derivatives, is mainly used in “two-in-one” shampoos, conditioners, ointments and other shampoo and hair care products to smooth hair. qualitative effect.
●Generally, the addition amount of two-in-one shampoo is 2% to 4%, and some are even less than 1%. After rinsing with a large amount of water, the residual amount will be reduced.
●It is generally believed that this chemical component is not irritating to the skin and mucous membranes, but it is irritating to the eyes.
Suggestions
It is best to change shampoo every three months
An industry insider said that different brands of shampoo use different silicone oils. If you only use one kind of shampoo for a long time, the same silicone oil will be deposited too much on your hair, which may lead to the problem of washing your hair more frequently. The more serious the situation. With different shampoos, one silicone oil can wash away part of another silicone oil, at least without excessive deposition of the same silicone oil. This industry insider suggested that you should change shampoo brands at least every three months, or keep a variety of shampoos of different brands at home and use them in rotation.
The aforementioned Dagong professor said that everyone’s skin conditions are different. Some are oily, some are dry, and some are neutral. Therefore, when choosing a shampoo, you should choose it according to your actual situation. In addition, because the scalp secretes oil to protect the hair and scalp, if you wash your hair too frequently, the oil will be washed away, which will accelerate the aging of the scalp, leading to hair loss or hair loss. 
