Sun protection is actually something we must pay attention to in our lives, especially in the hot summer. We must pay attention to sun protection and avoid direct exposure to ultraviolet rays. However, many people easily fall into misunderstandings about sun protection. For example, most people think that sun protection is only needed in very hot summer. When it comes to the use of sunscreen products, they think that as long as they apply them, they can have a sun protection effect. This is a wrong understanding. Myth 1: Ultraviolet rays are only very strong in very hot conditions. Reality: UV rays do not generate heat. For example, when people climb a mountain, the higher they go, the cooler the mountain breeze becomes, and the stronger the ultraviolet rays become. For every 1,000 meters you go, the UV rays increase by 10%. The same is true at sea: the sea breeze makes you feel cool, but the ultraviolet rays at this time are already extremely strong. Myth 2: When the clouds are thick on cloudy days, ultraviolet rays will not harm the skin. The truth: Clouds have almost no shielding effect on ultraviolet rays. 90% of ultraviolet rays can penetrate the clouds. Only dark and thick rain clouds can block some ultraviolet rays. Myth 3: Sunscreen will provide sun protection immediately after application. The truth: Since the active ingredients in sunscreen must penetrate into the surface of the stratum corneum to exert a long-term protective effect, it is necessary to wipe it off 30 minutes before going out, and replenish it again before going out. The dosage used must be at least 1 to 2 ml each time to achieve the best sun protection effect. Myth 4: Forgetting to apply sunscreen a few times occasionally will not have much impact on your skin. The truth: Sun exposure is cumulative, so even if you are only exposed to the sun indirectly, the damage to your skin will accumulate over a long period of time. You may not see the consequences immediately, but over time it will cause tanning, spots on your face, loss of skin elasticity, wrinkles, and aging. |
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