The scalp area of healthy adults is about 650-700 square centimeters. Compared with the skin in other parts of the body, the scalp epidermis keratinizes and updates faster, about
It is twice as thick and dense as other skin.
The scalp is exposed to the natural environment, which is influenced by many factors, including sunlight, atmosphere, rain, hair dryer heating, comb friction and so on.
Wait a minute.
In daily life, people usually only pay attention to the quantity and appearance of hair, but ignore the health care of scalp. In fact, scalp care
Hair management is inseparable from hair care. Scalp is the "soil" for breeding and nourishing hair. Unhealthy scalp will directly affect the growth and luster of hair.
Factors affecting scalp health
Scalp is a greasy area, and highly active sebaceous glands constantly produce a large amount of sebum, which exists on the scalp surface. Sebum comes into contact with hair,
It quickly becomes greasy and sticks into clusters, leading to unsustainable hairstyles. Dust and pollutants accumulate on greasy hair, making it dirty quickly.
Dirt on scalp and hair surface can be divided into the following four categories according to their sources: ① keratin debris from scalp and components in sweat; ② Bacteria and other microorganisms
Products of sebum catabolism; ③ Various particles or pollutants deposited on hair (such as dust, suspended particles and compounds in rain); ④
Residue of hairdressing products.