How environmental factors can cause hair loss

caused by environmental factors such as UV radiation, humidity, wind and chemicals in hair care products has a negative effect on hair fiber growth and texture . Hair care and weathering can exacerbate the natural loss of hair density associated with age-related thinning. For

, read on estet-portal.com in this article.

• What structures protect us from hair loss
• Photodamage as a factor in hair loss
• Mechanical damage to the hair
• The effect of hair care on hair conditionno
What structures protect us from hair loss

is determined by its unique structure.

What you need to know about the hair follicle: morphogenesis, structure and regeneration of hair Most of the strength of the fiber is provided by the

, which act as a mechanical protective barrier. The latter makes up about 10% of the fiber's weight and is made up of tiny flakes that overlap like shingles on a roof, with open edges towards the end of the fiber. The cortex of the hair provides its strength thanks to keratin, which is rich in disulfide bonds.

In addition, melanin, which is located in the cortex, provides protection for the fiber from ultraviolet radiation

. Photodamage as a factor in hair loss

involves the interaction of iron, water and ultraviolet light to form free radicals. The latter are partially absorbed by melanin, which acts as a scavenger of free radicals. However, when the vast majority of free radicals are generated,

and ultraviolet radiation then creates cross-links between proteins, melting the bark and making the hair very brittle .

Professional hair care secrets for summer  

White or gray hair is less protected from UV radiation

. Mechanical damage to the hair

determine how the hair will lay down, how it is combed and styled. When the cuticle scales become smooth, light is reflected from them, and the hair looks shiny and healthy.

T cells: hair growth activators Typically, the macroscopic appearance of a damaged fiber is characterized by

, the so-called trichoptilosis. This usually occurs with longer hair that has been exposed to environmental factors for a longer period Wednesday.  

Scanning electron microscope

reveals progressiveher fiber damage from root to tip. The impact of hair care on their condition

has an important effect on the wear and tear of the hair fiber. Shampooing every dayclears the protective sebum layer that coats the hair, resulting in the rod dries out so it is easily charged statically and therefore becomes more prone to friction. Shampoos – they are amphiphilic molecules having a lipophilic side that binds sebum and a hydrophilic side that binds water.

Shampoos are divided into groups depending on their chemical structure. Those belonging to the

contain negatively charged molecules with stronger and deep cleansing properties, such as sodium laureth sulfate and sodium lauryl sulfate.

Dry – No! Effective hair moisturizing Shampoos belonging to

(cationic, non-ionic and amphoteric) include products that have milder cleansing properties, are less irritating and make hair more manageable. Shampoos are often sold according to the type of hair they are intended for. Those for oily hair have stronger cleansing properties, while those for colour-treated, bleached or dry hair are gentler to reduce sebum removal.

Baby shampoos are generally gentle, less irritating and suitable for daily use.

When combing wet hair, we apply more force to the hair near the scalp, making it more destructive than dry combing, in which force is applied to the end of the hair shaft.

Telegram! Using combs and brushes with

is a good protective measure when styling your hair. After using hairdryer and curling iron ​there are hairs formed inside the hair shaft microcavities which are formed as a result of the expansion of moisture caused by the high temperatures of these devices. Thus,

due to environmental factors, it is necessary to protect hair from the sun in summer and from frost in winter, use gentle hair care products and combs, and do not abuse hair dyes and perms.

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