Skincare and maintenance: the scientific way to protect the balance of the skin
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Skincare maintenance is not simply a "bottle and jar stacking", but a scientific management based on the physiological laws of the skin. Healthy skin is like a delicate ecosystem, with the barrier function of the stratum corneum, oil secretion from sebaceous glands, and collagen metabolism in the dermis layer jointly maintaining water oil balance and barrier integrity. Only by understanding this underlying logic can one avoid the trap of "excessive skincare" and find a truly suitable skincare plan for oneself.
Cleanliness is the first level of skincare, but it is most prone to falling into the misconception of 'the cleaner the better'. Although soap based cleaning products can bring immediate freshness, their strong alkalinity can damage the weakly acidic environment of the stratum corneum, and long-term use may cause dryness and sensitivity. Amino acid based cleansers are more in line with the pH value of the skin, removing surface dirt while retaining the necessary lipid components of the stratum corneum. For makeup enthusiasts, the makeup removal process should follow the principle of "oil dissolves oil", selecting makeup remover oil or cream with a similar structure to sebum, gently emulsifying to remove makeup residue, and reducing mechanical friction damage to the barrier.
The core of moisturizing lies in "locking in water" rather than "replenishing water". The natural moisturizing factors in the stratum corneum, such as hyaluronic acid and ceramides, are responsible for absorbing water, while the sebum membrane secreted by sebaceous glands acts as an invisible cling film, preventing water evaporation. Therefore, the selection of moisturizing products should give consideration to "supplementary ingredients" and "repair barriers": makeup water can quickly inject water into the stratum corneum, essence liquid can provide high concentration of active ingredients, and the sealing oils (such as squalane and vaseline) in face cream are the key to locking nutrition. Especially in the dry season, the superposed use of face cream can effectively reduce the transcutaneous water loss and maintain the moisture state of the skin.
Sunscreen is of utmost importance in anti-aging, and its significance goes far beyond preventing tanning. UVA in ultraviolet radiation can penetrate the dermis layer, causing collagen fiber breakage and melanin deposition, which is the main cause of wrinkles and pigmentation; UVB can cause immediate redness and burns. When choosing sunscreen products, attention should be paid to the dual indicators of "SPF" and "PA": SPF value corresponds to UVB protection ability, while PA level represents the resistance to UVA. For daily commuting, SPF30+and PA+++products are sufficient; If exposed outdoors for a long time, choose high magnification sunscreen with SPF50+and reapply every two hours. The combination of physical sun protection (such as sun hats and masks) and chemical sun protection can form a more comprehensive protective net.
Different skin types require differentiated care strategies. Oily skin is often accompanied by enlarged pores and excess oil. It is recommended to prioritize refreshing products, reduce the use of blocking ingredients, and regularly perform gentle exfoliation (1-2 times a week) to prevent acne caused by keratin accumulation. The maintenance of dry skin focuses on strengthening moisturizing and barrier repair. You can use face cream rich in oil to avoid frequent exfoliation. Sensitive muscles should follow the "principle of simplification", avoid irritating ingredients such as alcohol and essence, give priority to cosmetics products that have been tested by dermatologists, and gradually rebuild the skin barrier through the formula of low concentration, high temperature and.
The ultimate goal of skincare is to maintain the skin in a state of "self-directed health". When the stratum corneum is tough and balanced in water and oil, the skin can autonomously resist external stimuli, presenting a natural luster and elasticity. Instead of chasing endless new products, it's better to establish a stable skincare logic - not excessive cleansing, not lazy moisturizing, and not lax sun protection, making scientific skincare the strongest armor for the skin.