Forgetting to Reapply Sunscreen
The effectiveness of sunscreen decreases over time. Most sunscreen products are only effective for about 2-3 hours after application. If you’re outdoors, especially if you’re physically active or sweating, remember to reapply sunscreen every 2 hours.
Applying Too Little Sunscreen
UV rays, especially UVA, can penetrate through clouds and glass, affecting your skin even on cold days. Even on cloudy winter days without sun, your skin can still be impacted by UV rays. UVA rays not only cause skin aging but also increase the risk of skin cancer.
Sunscreen effectiveness diminishes over time.
According to dermatologists, to achieve the best protection, you should apply a quantity of sunscreen equivalent to approximately 2mg/cm² to your face and body.
The ozone layer is also an important factor in protecting human skin from harmful ultraviolet rays in the atmosphere. In winter, the ozone layer becomes thinner, which means that the collagen bonds in the skin layers are destroyed.
Using Inadequate SPF
Choose a sunscreen with an SPF of 30 or higher as it can block approximately 97% of UVB rays, while SPF 50 can block up to 98%. Using a higher SPF sunscreen will provide an additional layer of protection for your skin.
Using Inappropriate Sunscreen for Your Skin Type
Applying sunscreen in winter is just as important as using it in summer. Therefore, remember to choose a sunscreen that suits your skin type. For example, if you have oily skin, opt for a gel or water-based sunscreen to avoid a greasy feel. If you have dry skin, choose a product with added moisturizers. For sensitive skin, look for fragrance-free options with fewer potentially irritating ingredients.
Applying sunscreen in winter is crucial for skin protection.
Winter is characterized by low humidity, cold, and dry air, which can make human skin prone to flaking, itching, and redness. This is because the natural oil barrier that protects the skin has disappeared. Therefore, applying sunscreen helps create a protective layer for the skin, preventing the intrusion of harmful external factors.
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