Why do you want to write about this topic?
Because yesterday my mother Leng buting threw a link to me. I thought that the old lady was going to buy things blindly again. Just wanted to send voice to her, my mother typed a line directly.
"There's no shampoo at home. I think this introduction says it's silicone free. It's good for hair. You can buy one for me to try."
Seeing this, I suddenly began to love her again. When I went shopping, the elderly always paid the most IQ taxes.
Businesses under the brand of no silicone oil will scare you without exception: "silicone oil is a chemical substance that can block pores, cause scalp itching, redness and swelling, and even hair loss. "
But! Silicone oil is not so useless!
In order to avoid more people falling into the pit!
It's time to add silicone oil and silicone free shampoo!
(hope that businesses without silicone oil shampoo will not chase me after reading this article, after all, I still want to sell...)
What is silicone oil?
We can grill the ingredients on our own shampoo. Those containing polydimethylsiloxane, polydimethylsiloxane alcohol, ammonia terminated polydimethylsiloxane and other ingredients are all silicone oil shampoo.
Source: Lilac Life Institute
Silicone oil is widely used in daily life, such as hand cream, pad paper in bakery, oil paper in barbecue, and lubricating oil on TT, etc.
Why is silicone oil added to shampoo?
Let's first look at the structure of hair~
The outer layer of hair is hair scale, which is very fragile. Hair washing, combing and perming will make hair scale rise and open.
Healthy hair side under electron microscope,
There are closely arranged hair scales
This results in rough hair appearance, easy knotting and inconvenient combing.
Every time we wash our hair, the scales on the surface of the hair will be lifted, causing slight damage, which will lead to manic and dry hair.
Under the electron microscope, a damaged hair,
Its scales are dry and turn up, making it harder to comb
All kinds of silicone oil can lubricate hair scales and make hair more supple. At the same time, silicone oil film on the hair, its own weight can also make the hair more drooping.
What "enjoy silk slip" and "comb to the end" can not do without the credit of silicone oil. So for people who have the habit of perm and dye, dry hair and split hair, silicone oil shampoo is a better choice.
Does silicone oil block pores
Causing hair loss?
Everyone's biggest worry about the shampoo containing silicone oil is that silicone oil is insoluble in water and easily remains on the scalp, causing poor breathing of the hair, and then causing scalp itching and hair loss.
Is that the case? The answer is no!
Reason
1. Many skin care products are also added with silicone oil, so there is no way to block pores. What's more, the silicone oil added into shampoo has now been improved to be water-soluble, and it will be washed away with water, so there is no need to worry about the residual silicone oil.
2. Silicone oil itself has air permeability (silicone oil and contact lenses are essentially the same material, the airtight eyeball will not be wasted);
3. Silicone oil is a macromolecule, which can't be absorbed by human body and can't hurt human body when used normally;
4. Generally, the content of silicone oil in shampoo is very small, which is about 3% (less than 10% is safety value);
5. Most of the silicone oil will be washed away under the action of cleaning surfactant and a large amount of water.
Therefore, in general, there will not be a large amount of silicone oil left on the scalp, even if there is a small amount of residual will not cause damage to the scalp and hair.
In fact, the concept of non silicone oil is also passed from the West. Because the hair quality of westerners is thin and soft, and the hair volume is small, they prefer to pursue the sense of fluffy, so they tend to dislike silicone oil.
For hair loss, the main reasons are too much mental pressure, physical sub-health and family genetics. Therefore, when hair loss, do not always blame shampoo, even if it is due to shampoo problems, we should also consider whether the whole product is the problem, and not let silicone oil back the whole pot!
So...
Shampoo
How to choose?
In a word, there is no better way to say that there is no silicone oil shampoo or silicone oil shampoo. You should choose it according to your hair quality and needs.
If it's dry hair, it's better to choose silicone oil shampoo;
If it is oily hair, it is better to choose non silicone shampoo;
If you are fried hair star, you need hair to be soft and fit, you should choose a shampoo with silicone oil;
If the pursuit of hair fluffy feeling, should choose no silicone oil shampoo.
If it's a sister who likes to get oil out of the scalp and has dry hair and tail, it's still recommended to choose the one without silicone oil, but it should be matched with conditioner and hair oil~
In addition, do not use the same shampoo for a long time, and change the brand at least once every 3 months.
Source: Lilac Life Institute
What's more, silicone shampoo is really cheap.
reference material:
[1] Skin science and efficacy evaluation of cosmetics, Liu Wei, Zhang huailiang
[2] Cosmology in maintenance, translated by Lin Wencheng
[3] Shampoo, do you want the one without silicone oil? 》Dr. lilac