In recent years, the increasing emphasis on hair has led to a surge in discussions about whether hair care products contain silicone oil, and the debate over whether silicone oil is harmful to hair continues unabated. To understand how to choose the right product, let's first understand what silicone oil is.
01 What is Silicone Oil in Shampoo?
Hair care products typically consist of multiple ingredients, mainly falling into four categories:
◆ Surfactants;
◆ Additives;
◆ Hair care ingredients;
◆ Special function ingredients.
Source: AI Illustration Silicone oil is one of the hair care ingredients. During shampooing, the emulsified silicone oil suspended in the shampoo comes into contact with the hair surface and adheres to it, forming a protective layer that makes the hair smooth, soft, and easy to comb.
The most commonly used silicone oils in shampoos are dimethicone and siloxysilicates. Dimethicone protects the hair shaft and reduces friction, while siloxysilicates can make hair fuller.
However, because silicone oil is insoluble in water, excessive use of silicone-containing shampoos can cause it to deposit on the hair surface and in the hair follicles, affecting normal hair metabolism and making the hair appear flat.
Therefore, the advantages and disadvantages of the two are obvious. However, some silicone-free shampoos on the market use the same or similar surfactants as silicone-containing shampoos. These silicone-free shampoos, lacking the protection of silicone oil, may actually be more irritating to the scalp.
02 Does long-term use of silicone-containing shampoos cause hair loss?
In recent years, many young people have developed "Mediterranean" hair. Therefore, some people believe that this is caused by using silicone-containing shampoos.
In fact, the concentration of silicone oil in shampoo products is only about 1%, and 10ml of shampoo contains only 0.1 grams of silicone oil (about 0.1ml). After washing, most of it is absorbed onto the hair surface, and the possibility of clogging hair follicles is negligible. There is also no literature reporting that silicone oil clogs hair follicles.
In recent years, modified, more water-soluble silicone oils have been used in shampoo and conditioner. This allows the silicone oil to adhere more effectively to the hair during shampooing, leaving less residue on the scalp.
Furthermore, the scalp can secrete up to 1 gram of oil per day, making the 0.1 gram of silicone oil negligible compared to this amount. Moreover, oil is constantly being expelled, so even if a small amount of silicone oil enters the pores, it is easily expelled with the sebum.
In modern society, factors such as working overtime, emotional stress, endocrine disorders, spicy foods, and dieting all contribute to hair loss, and silicone oil has undoubtedly been unfairly blamed for this.
03 How to Choose Shampoo?
When choosing between "silicone-containing" and "silicone-free" shampoos, the most important thing is to consider your own needs and choose a suitable shampoo.
For those with chronically dry hair: Silicone-containing shampoos are recommended. If you are concerned about silicone oil buildup on the scalp, you can choose a silicone-free shampoo and use a silicone-free conditioner after cleansing.
For those with thin, fine, and oily hair: it is recommended to use a silicone-free amino acid shampoo, which can reduce irritation and keep hair fluffy and dry.
