dry skin
Sebum secretion is reduced, and the moisture content of stratum corneum is lower than 10%, which is characterized by delicate skin, inconspicuous pores, low elasticity, lack of luster, dry skin and powdery desquamation. This kind of skin is sensitive to external stimuli and prone to aging, which is common in elderly skin and aging skin. Generally speaking, dry skin can be divided into dry skin and dehydrated dry skin. The reason why dry skin lacks natural oil is that sebaceous glands are naturally dull and cannot produce oil; It may also be the result of acquired factors, such as the use of cream containing too much oil, or skin care products containing medicinal or even hormone and steroid ingredients, which leads to the atrophy of sebaceous glands and sweat glands and interferes with the natural secretion of oil and water; Although dehydrated dry skin contains enough oil, it still feels dry and thin and easy to peel off due to insufficient water. If you find that your skin is very thin, close to the skin surface, you can clearly see tiny blood vessels, and it looks easy to have fine lines or wrinkles (even if you are young), which belongs to dehydrated dry skin.
How to test
1) Your skin is so thin that even the capillaries are faintly visible.
2) After washing your face every time, you will obviously feel tight.
3) Face makeup can last for a long time.
4) Don't stay in the sun for a long time, or your skin will be extremely uncomfortable.
5) If you don't continue to use skin care products, your face will feel uncomfortable; If you stop using skin care products for a few days, your face will peel off.
6) You can't stand washing your face with soap.
oily skin
The stratum corneum has normal water content and more sebum secretion, which is characterized by greasy and shiny face and large pores. This kind of skin has good tolerance to external stimuli, is not easy to age and wrinkle, and is common in young and middle-aged people.
How to test
1) Your makeup will soon change color. Usually after two or three hours, you will feel that your makeup is beginning to wear.
2) Do you think the epidermis is slightly thicker?
3) You like to wash your face with soap or lotion that needs to be washed with water.
4) Your skin is in good condition after sun exposure, and you won't feel extremely uncomfortable even if you are exposed to the sun.
5) Your pores are thick and slightly black, and you often have acne, acne and acne problems.
6) Your hairstyle is hard to last. Wash your hair every few days.
neutral skin
The moisture and sebum secretion of the cuticle of the skin are in a balanced state, characterized by moderate balance thickness, fine texture, fine pores, smoothness, softness, elasticity and insensitivity to external stimuli. This type of skin is common in adolescence.
How to test
1) After washing your face, you won't feel dry and tight.
2) Your skin looks fine and tender.
3) Frequent acne and acne.
4) Your skin will not be seriously oily in summer.
5) When looking in the mirror, you have to look very carefully to see the capillaries.
6) Your skin is hardly allergic.
Mixed skin type
It consists of two basic types, usually neutral oily or oily dry skin, which is more common in young people. Everyone's skin is not static, it changes with age, season, environment, habits and physical condition.
How to test
1) Do you think your skin is neither too thick nor too thin?
2) Your pores are only slightly obvious on the side of nose, nose and forehead.
3) You like to wash your face with soap occasionally. After washing, your cheeks will feel tight, but they will soon return to normal.
4) Face makeup needs to be applied to the forehead, nose and nose every few hours.
5) You don't often get acne, but occasionally you get one or two because of some disorder.
6) In summer, if you don't wear skin care products occasionally, there will be no obvious discomfort.
Sensitive skin
Because everyone's medical knowledge is different, the knowledge and understanding of "sensitive skin" are also very different. From the point of view of dermatology, some people are more prone to irritation and allergic reactions when they are exposed to certain substances than the general population, including objective manifestations such as irritation and allergic reactions. More subjective feelings, such as itching, tingling, dryness, etc. These people have sensitive skin. At present, there are many reliable methods to detect sensitivity, which can objectively judge this kind of skin. Many people misunderstand "sensitive skin", thinking that their skin is prone to some unexpected changes or adverse reactions after contacting some external substances such as cosmetics, detergents and ornaments, and that such skin is "sensitive skin", which is obviously not scientific enough.
What kind of skin is bodybuilding?
Skin bodybuilding refers to healthy, natural and harmonious skin. The standard of skin bodybuilding is a comprehensive standard, which is mainly based on six aspects:
1) The skin is healthy without any diseases, and the skin color is reddish and yellowish.
2) The skin is clean and delicate, with no dirt, fine dermatoglyphics and pores.
3) The skin is elastic, smooth, not rough, dry and wrinkle-free.
4) The skin is energetic, ruddy and shiny.
5) The skin is in good condition, not greasy or dry, with water content of 20% and pH value of 5.5.
6) Anti-aging skin. With the increase of age, the skin slowly declines.
Factors affecting skin bodybuilding
1) Genetic factors: Many people's bodybuilding skin mostly comes from their parents' inheritance, such as the fineness of skin, which is closely related to heredity.
2) Mental factors: Overwork, mental depression, mental stimulation and psychological activities will make the skin lose its luster, accelerate aging and damage beauty.
3) Nutritional factors: the disorder of human nutrition metabolism will hinder the metabolism of the skin, thus affecting the bodybuilding of the skin.
4) Health factors: abnormal endocrine function and visceral dysfunction will affect skin bodybuilding.
5) External physical factors: Too much ultraviolet radiation will cause irreversible damage to the skin, making the skin aging rough and pigmentation. Too cold, too hot and too much mechanical stimulation are the enemies of skin bodybuilding.
6) Chemical factors: acid, alkali, organic compounds and some drugs can damage the skin, cause abnormalities and cause local lesions.
7) Biological factors: Viruses, bacteria, fungi and other microorganisms can infect skin and affect skin health.
8) Iatrogenic factors: drugs, cosmetics and improper treatment will cause beauty damage.