[Report by Health Medical Network/Reporter Zeng Zhenghao] The hot summer is the peak of ultraviolet rays. In this regard, the Food and Drug Administration specially invited Dr. Li Zongru from the Department of Dermatology at the Taipei Medical University Hospital to share that the lip skin has low moisture content and barrier function. If not, Taking good sun protection measures will not only cause moisture loss, but also cause chapped, dull and aging, and even skin lesions and cancer.
Lip sunscreen is the primary purpose of preventing skin cancer Dr. Li Zongru stated that sunscreen on lips, in addition to preventing suntan, sunburn and aging, the main purpose is to prevent skin cancer. In particular, the lower lip area is larger and more prominent, which is prone to long-term exposure to ultraviolet rays. If sunscreen is not used, it will increase the chance of solar cheilitis (precancerous lesions) and increase the risk of skin cancer. When there are non-healing wounds on the lips, repeated peeling and scaling and other symptoms, you should be alert and go to the dermatologist for further examination as soon as possible to confirm whether there is a possibility of skin cancer (especially squamous cell carcinoma).
Sun protection effect application frequency and application amount are the key The Food and Drug Administration pointed out that sunscreen products often use SPF and PA to indicate the sunscreen effect of the product, which is designed to prevent short-wave UVB and long-wave UVA from ultraviolet rays. SPF is a sun protection index for UVB. SPF15 means that it can extend the time of sunburn and sunburn by 15 times; SPF50 is 50 times longer. PA is a protection index that blocks UVA, which represents the ability to delay skin tanning. Its value is represented by “+”, up to 4 + signs, which is also the concept of multiples to delay tanning. However, if you lick your lips frequently, sweat easily or do not apply enough, even if you use a product with a high SPF, you still need to apply it frequently and apply it thick enough to achieve the ideal sun protection effect.Choose a sunscreen lip balm several key points to keep in mind The principle of action of sunscreen ingredients is divided into physical and chemical properties. The physical effect is less likely to cause allergies, but the disadvantage is that it is prone to whitening and thickening; the chemical effect is more refreshing and not greasy after use, but you should pay attention to sensitivity or irritation. The Food and Drug Administration reminds you to choose products with complete labels when purchasing, pay attention to the precautions and usage methods, and use them up as soon as possible within the validity period; if you use sunscreen lip balm with touch-up effect and fragrance, it should be cleaned and avoid ingredients Stay on the lips for too long and caus