The news about hair loss caused by silicone oil. Silicone oil is a macromolecular substance and will not be absorbed by hair follicles. There is not much silicone oil in shampoo. Under the cleaning effect of surfactant and a large amount of water washing, it will not remain on the head. In fact, there are many reasons for hair loss, such as seborrheic alopecia caused by endocrine disorders, mental stress, and even postpartum physiological alopecia. Hair follicle blockage is not the cause of hair loss.
The effect of PDMS on hair care is obvious, especially for the hair that is frequently dyed, and the hair scales of the hair that is frequently dyed are seriously damaged. Because the function of silicone oil is to attach to the hair and fill the damaged and open hair scales, people will worry that it will also deposit on the scalp, blocking pores, causing red swelling, inflammation, acne, hair loss and other adverse effects.
Silicone oil is safe for cosmetics because it is not irritating to the skin. Although it can form a hydrophobic film on the skin, it is breathable and will not cause acne, acne, hair loss, allergies and so on. On the contrary, it is often used in products marked A as acne-free or oil-free, which is its advantage over traditional oils.
Most shampoos add a small amount of PDMS, which can achieve certain hair care effect while cleaning hair. In fact, just as its hair care function is limited, the possibility of PDMS remaining on the scalp to block pores is also very low. Because the content of PDMS in shampoo is very small, below 1%, it is almost completely removed by washing with a lot of water under the action of anionic surfactant with cleaning function. Hair conditioner and hair mask containing more silicone oil can be used as long as it is applied to the end of the hair far from the scalp, which can save money. Secondly, the hair scales at the hair roots are generally less damaged and basically do not need nursing. Third, if it is rubbed on the hair roots, it is not only greasy but also heavy and flat.
At present, there are some new components to improve the structure of PDMS, such as etherification or adding amino groups. These new elements have stronger binding ability to hair and greater water solubility than PDMS. Products containing these new ingredients can be attached more effectively with less residue. So friends who are confused about rumors don't have to worry too much.
Because PDMS will adhere to the hair, the hair will become thicker and heavier, and the static electricity between the hairs will be reduced, so the hair will not be fluffy or even flat after drying. For people with short hair and soft hair, this may be unsightly, so such people can choose a shampoo without PDMS.