The sebum membrane is very powerful, but it is always ignored. A healthy sebum film is the first element of healthy, brighter skin. The sebum membrane has important physiological functions on the skin and even the whole body, mainly in the following aspects:
1. Barrier effect
The sebum film is the most important layer of skin moisture retention, which can effectively lock moisture, prevent excessive evaporation of skin moisture, and prevent a large amount of external moisture and certain substances from infiltrating. As a result, the weight of the skin remains normal.
2. Moisturize the skin
The sebum membrane does not belong to a certain layer of the skin. It is mainly composed of sebum secreted by sebaceous glands, lipids produced by keratinocytes, and sweat secreted by sweat glands. It is evenly distributed on the surface of the skin and forms a natural protective film on the surface of the skin. . Its lipid part effectively moisturizes the skin, keeps the skin lubricated and nourished, and makes the skin flexible, smooth and shiny; the large part in the sebum film can keep the skin moist to a certain extent and prevent dry cracking.
3. Anti-infective effect
The pH of the sebum membrane is between 4.5 and 6.5, which is weakly acidic. This weak acidity enables it to inhibit the growth of microorganisms such as bacteria and has a self-purifying effect on the skin, so it is the immune layer on the skin surface.
The secretion of sebaceous glands is regulated by various hormones (such as androgens, progesterone, estrogen, adrenal cortex hormones, pituitary hormones, etc.), among which the regulation of androgens is to speed up the division of sebaceous gland cells, increase their volume, and increase sebum synthesis ; And estrogen reduces sebum secretion by indirectly inhibiting the production of endogenous androgens, or directly acting on the sebaceous glands.
Excessive sebum secretion can cause oily, rough skin, enlarged pores, and prone to acne problems. Too little secretion can lead to dry skin, scaling, lack of luster, aging, etc.
Factors affecting sebum secretion are: endocrine, age, gender, temperature, humidity, diet, physiological cycle, skin cleansing methods, etc.
Meicet skin analyzer can be used to detect the sebum membrane is healthy or not. If the sebum membrane is too thin, then the skin will be more sensitive to external stimuli. An image will be shot under the cross-polarized light and based on this image Meicet system uses an algorithm to get 3 images- sensitivity, red area, heatmap. These 3 images can be used to analyze sensitive skin problems.
Post time: Mar-22-2022
