1. What are the three layers of skin structure?
A: Derma, epidermis and subcutaneous tissue.
2. What five layers can the epidermis be divided into?
Answer: stratum corneum, transparent layer, granular layer, prickly layer and basal layer.
3. What is the function of stratum corneum?
A: The stratum corneum has protective, waterproof and antibacterial functions. There are 6- 10 layers, which are dead skin cells.
4. What is the function of the transparent layer?
Answer: The function of transparent layer is to control skin moisture and prevent a large amount of water from losing and entering.
5. What is the function of granular layer?
A: The function of the granular layer is to prevent foreign bodies from invading and filter ultraviolet rays.
6. What is the function of sebaceous glands?
A: The function of sebaceous glands is to secrete oil and moisturize the skin.
7. What is the function of sweat glands?
Answer: Sweat glands are used to sweat, regulate body temperature and excrete waste.
8. What five layers can the epidermis be divided into?
A: Dermal is directly related to skin aging and consists of collagen fibers and elastic fibers.
9. What cells are contained in the basal layer and what are their functions?
A: The basal layer contains melanin growth cells, and the way melanin accumulates determines the color of our skin.
10. With the increase of age, a series of aging problems appeared on the skin. What are the causes of rough, dry, dehydrated and wrinkled skin?
A: Roughness is caused by slowing skin metabolism and thickening cuticle. Dry water shortage is caused by the decrease of skin water content and water retention capacity. Wrinkles are caused by the slow formation of collagen fibers and elastic fibers, the formation of gaps and the lack of water in the skin.
1 1. Besides age, what other factors can affect skin health?
A: There are also changes in human hormones, environmental pollution, ultraviolet radiation, eating habits, sleep time and improper maintenance methods that will affect skin health.
What are the four basic types of 12 skin?
A: Dry, neutral, oily and mixed.
What are the characteristics of dry skin? What is the focus of maintenance?
A: Dry skin often feels tight, pores are fine, and eyes and neck are easy to relax. The focus of maintenance is to replenish water and reduce wrinkles and peeling.
What are the characteristics of oily skin? What is the focus of maintenance?
Answer: oily skin has large pores and excessive sebum secretion, which is easy to produce blisters. The key point of maintenance is to inhibit oil secretion and thoroughly remove excess oil and dirt from pores.
15. What are the characteristics of neutral skin? What is the focus of maintenance?
Answer: Neutral skin is smooth, tender and healthy, with delicate skin tissue, no coarse pores and no greasy parts. The focus of maintenance is to keep the skin balanced and moist, so that the skin texture can be more detailed.
What are the characteristics of mixed skin? What is the focus of maintenance?
A: T-shaped parts such as the nose wing of mixed skin are more shiny, but other parts of the face are too dry. The key point of maintenance is to inhibit the secretion of oil in T-shaped area and converge pores.
What are the 17 and 5 steps of skin care?
Answer: Clean, adjust skin, refresh skin, balance moisture and protect.
18, what is the function of the mask?
A: The function of the mask is to regulate the skin, gently remove dirt from the depths of pores and remove dead cells, which is beneficial for the skin to better absorb the nutrients in the mask.
19, what is the function of conditioning the skin?
A: The function of toning skin can further clean the skin, remove the residual substances in pores and balance the pH of the skin.
20. What is the cause of melanin?
A: When ultraviolet rays penetrate the stratum corneum on the skin surface and reach the inner epidermis, tyrosinase in melanocytes will be activated, and a large amount of melanin will be produced, resulting in the formation of pigmentation and uneven skin color.
Extended reading
How to protect the skin
8 glasses of water a day, the skin is not dry and full of elasticity.
Truth: Drinking plenty of water really helps to promote human metabolism and eliminate toxins in the body. But this is not a panacea for skin problems. Our skin can't directly absorb water molecules, so we can't have moist and shiny skin just by drinking enough water. We still need to use high-quality skin care products to replenish and maintain skin moisture.
Skin peeling indicates that the skin is too dry.
Truth: People with oily skin who clean their skin excessively or use shrink repair water can also cause the skin surface to be dry or even peeling. But no matter what kind of skin, if the skin is dry and desquamate constantly, it may be a skin disease. It is recommended to see a doctor.
Any soap will irritate the skin.
Truth: The so-called soap only makes cleaning products solid. At present, many beauty soaps contain moisturizing ingredients, which are mild in nature and can be used to clean the face-even for the maintenance of red blood skin.
Washing your face with cold water is better for your skin.
Truth: The ideal temperature is slightly hotter than the skin (about 35℃). Because too cold soap is not easy to dissolve, overheating will make the oil on the skin lose and make the skin rough. After washing, pat with cool water for better skin care effect, and then make a hydrating mask. The skin is beautiful.
Soaking in a hot bath for a long time can make the skin relaxed and cleaner.
Truth: Soaking in hot water for a long time will dry the skin, and very hot water will destroy the capillaries.
No makeup, no makeup remover.
Truth: First of all, some ingredients in sunscreen products are difficult to remove with hydrophilic cleansing products, and at the end of the day, the oil secreted by the skin is mixed with dust and radiation particles, so even without makeup, there will be a need to use makeup remover and anti-aging skin care products.
Strong anti-wrinkle cream can remove wrinkles.
Truth: Anti-wrinkle skin care products and any other skin care products can really nourish skin, temporarily make skin smooth and delicate, smooth fine lines, delay the arrival of aging, and prevent skin dryness and ultraviolet rays in the sun. The process of aging is impossible to reverse, and it is necessary to fight aging early.
Eye cream is only needed when there are fine lines around the eyes.
Truth: Even a 20-year-old may need eye cream, because the skin around the eyes is very thin, which is one of the first places where wrinkles appear. It is necessary to plan ahead and take precautions in advance. Once wrinkles appear, it is too late. Besides skin care products, what you eat is good for your skin and important for maintenance.
Baby skin care products are also suitable for adult skin.
Truth: Baby cream is really non-irritating, but it is also non-nutritious. Baby's skin itself is rich in collagen, but adult's skin needs to be supplemented with necessary nutrition.
Skin care products extracted from natural plants are mild and suitable for all sensitive skin.
Truth: Natural skin care products made of refined plants, Chinese herbal medicines and flower essential oils are really good, but they are not suitable for all allergic skin. Because plants also contain allergenic ingredients, girls have time to learn homemade Chinese medicine whitening mask.
Introduction to the principle of laser beauty technology
The development time of laser beauty is not very long. Specifically, it is a technology developed in recent years, which has a certain connection with hair removal technology. The first thing to know is that laser beauty is a non-intrusive method, so it is very safe, but there are also some things to pay attention to. The following is the introduction of laser beauty technology:
Laser beauty whitening: escort of high-tech principle
Laser beauty is the choice for most women to whiten their skin. The new color series photon therapy head is very suitable for treating oriental skin problems, and the skin rejuvenation effect is more prominent. Laser beauty can make skin tender, restore elasticity, dilute skin, shrink pores and reduce wrinkles.
Laser beauty whitening technology is based on the characteristics of problem skin, which contains more pigments or capillaries than normal skin. Adopt brand-new intelligent color control system and software upgrade, automatically identify different chromatograms, intelligently select and accurately output, and ensure the efficacy and safety of skin rejuvenation. At the same time, intense pulsed light energy wonderfully rearranges and combines the collagen fibers and elastic fibers in the deep layer of the skin, restores elasticity, and at the same time can enhance the elasticity of blood vessels and improve circulation, thus improving wrinkles and large pores of the skin.
Laser beauty whitening: multiple effects, fast and affordable
From a professional point of view, laser beauty is to use instruments to emit specific broad-spectrum intense pulsed light, penetrate the epidermis, coagulate blood vessels and decompose pigments without damaging normal skin, thus achieving the effect of treating telangiectasia and pigmentation.
Photons act on skin tissue to produce photothermal and photochemical effects, promote the regeneration and rearrangement of collagen fibers and elastic fibers, restore the elasticity of facial skin, eliminate or reduce wrinkles and shrink pores; Thereby playing the role of anti-aging and skin rejuvenation. Laser beauty technology can effectively act on sebaceous glands of skin, regulate and inhibit the function of sebaceous glands, thus improving oily skin.
Laser beauty whitening can penetrate the skin without damage, and be selectively absorbed by pigment clusters in tissues and hemoglobin in blood vessels, so that dilated blood vessels, pigment clusters, pigment cells, etc. Can be destroyed and decomposed without destroying normal tissues and cells, thus achieving the effects of removing spots, whitening and removing red blood. Laser cosmetic treatment only takes a few minutes, with few side effects, but it also has strict indications.
Although any kind of plastic surgery has certain risks, there is no doubt that the safety guarantee of laser beauty technology itself is relatively high. Generally speaking, if you can choose a regular professional plastic surgery hospital and pay attention to all aspects of postoperative care, you can basically ensure the safety and success of the operation.