Core Viewpoint - The article emphasizes the importance of sun protection due to the high ultraviolet (UV) index across many regions, highlighting the risks of sunburn and sun-induced skin conditions like solar dermatitis [1][2]. Group 1: Understanding Solar Dermatitis - Solar dermatitis is described as a "war" between skin and sunlight, leading to inflammation, redness, pain, and potentially blisters and peeling when exposed to strong UV rays [3]. - There are two main types of solar dermatitis: sunburn, which is a phototoxic reaction affecting anyone exposed to excessive sunlight, and polymorphic light eruption, an allergic reaction more common in sensitive individuals [4]. Group 2: Common Triggers of Solar Dermatitis - The primary triggers for solar dermatitis include excessive UV exposure, with UVA penetrating deep into the skin and UVB being more intense in summer [5]. - Contact with photosensitive substances such as certain foods, medications, and cosmetic ingredients can also provoke reactions [6]. - Individuals with weakened skin barriers, such as those with sensitive skin or eczema, are at higher risk [7]. - Genetic factors may predispose some individuals to heightened sensitivity to UV radiation [8]. Group 3: Prevention Strategies - Effective prevention of solar dermatitis involves proper skin protection, especially for those with a history of the condition, including using umbrellas, wide-brimmed hats, sunglasses, long clothing, and sunscreen [9]. - It is advisable to avoid outdoor activities during peak UV hours from 10:00 AM to 2:00 PM [10]. - Limiting sun exposure to no more than two hours while taking protective measures is recommended [11]. - After swimming, it is important to wash the body with warm water and gentle cleansers [12]. Group 4: Response to Symptoms - For mild symptoms, cold compresses can alleviate discomfort, and it is crucial to avoid further sun exposure [14]. - Small blisters may resolve on their own, while larger ones should be treated by healthcare professionals [14]. - In cases of severe symptoms like headaches or nausea, immediate medical attention is necessary for allergy treatment [15].

Group 1 - The article highlights the upcoming peak of extreme high temperatures in China, affecting a large area from southern North China to central and northern South China, with many regions experiencing rare high temperatures for this time of year [1] - Experts recommend avoiding outdoor activities between 10 AM and 4 PM when UV radiation is strongest, and suggest carrying sun protection gear such as umbrellas, sunglasses, and sunscreen [1] Group 2 - According to Dr. Yang Shuxia, the director of the Dermatology Department at Peking University First Hospital, darker clothing provides better sun protection due to its higher dye concentration, which absorbs more UV rays [2] - The article emphasizes that even on cloudy days, about 70% of UV rays can penetrate clouds, making it essential to apply sunscreen regardless of weather conditions [3][4] Group 3 - For prolonged outdoor activities, experts recommend a combination of physical and chemical sun protection, including UPF 50+ clothing, wide-brimmed hats, and SPF 30+ sunscreen, applied 20 minutes before going outside and reapplied every two hours [5][6] - In case of sunburn, immediate cooling with lukewarm water and the application of aloe vera or vitamin E products are advised, with a recommendation to seek medical attention for severe cases [7]

Core Viewpoint - The article emphasizes the importance of sun protection for skin health, particularly for middle-aged women, highlighting that true self-love begins with careful self-care, especially through effective skincare practices like sun protection [7][10]. Group 1: Importance of Sun Protection - The article stresses that neglecting sun protection can lead to skin damage such as sunspots and fine lines, making individuals appear older than their peers [10]. - It cites the People's Daily's repeated emphasis on the significance of sun protection during summer [7]. Group 2: Product Recommendations - The article recommends the national brand "Jiaoxia" for sun protection products, highlighting its UPF50+ certification that blocks over 99% of UV rays, which is superior to the national standard of UPF40+ [23]. - It mentions the convenience of Jiaxia products, such as a lightweight sun umbrella weighing only 250g, making it easy to carry [25]. - The cost-effectiveness of Jiaxia's sun protection clothing is noted, with an average daily cost of 0.4 yuan over three years, which is cheaper than using sunscreen [28]. Group 3: Product Features - Jiaxia's sun protection clothing features patented technology with UPF100+ protection, ensuring high sun protection effectiveness [34]. - The clothing is designed for breathability and comfort, incorporating 360° cooling technology to enhance wearability during hot weather [36]. - The article highlights the thoughtful design details of Jiaxia products, such as a 5cm sun hat brim and a 10cm neck guard for comprehensive sun protection [40]. Group 4: Additional Product Lines - The article introduces various Jiaxia products, including sun masks and umbrellas, emphasizing their high UV protection capabilities and user-friendly designs [65][70]. - It mentions the availability of cotton T-shirts and quick-dry sun protection pants, which are designed for comfort and practicality during summer [98][111].

Group 1 - The core concept of sunscreen is to protect against ultraviolet (UV) rays, specifically UVA and UVB, with UVB being the primary cause of skin damage [2][3] - Sunscreen is necessary year-round, not just in summer, as UV rays can still be harmful during cloudy days or in indoor environments where UVA can penetrate glass [3][4] - There are two main types of sunscreen: physical (using barriers like hats and clothing) and chemical (using creams and sprays to absorb UV rays) [4][5] Group 2 - It is recommended to combine both physical and chemical sunscreen methods for optimal protection, as each has its advantages and disadvantages [5] - All demographics, including children, need to be mindful of sun protection, with specific recommendations for infants and young children to primarily use physical methods [5][10] - The SPF (Sun Protection Factor) and PA (Protection Grade of UVA) ratings are crucial indicators of a sunscreen's effectiveness, with higher values indicating better protection [6][8] Group 3 - Different environments require different levels of sunscreen protection, with specific SPF and PA recommendations based on activity and exposure [9] - When selecting sunscreen for children, it is advised to choose products with SPF 30 or higher and PA++ or higher, considering their unique skin characteristics [9][10] - The use of sunscreen sprays for children is discouraged due to the risk of inhalation and potential health hazards [12][13] Group 4 - Consumers should be cautious when purchasing sunscreen products, ensuring they check for proper labeling, SPF and PA values, and ingredient suitability for their skin type [14][15] - Proper application techniques are essential for effective sun protection, including applying sufficient amounts and reapplying every two hours during outdoor activities [15] - Sunscreen should be removed at night to prevent skin irritation, with specific cleaning methods recommended for different types of sunscreen [17]

Core Viewpoint - The article emphasizes the importance of sun protection products during high-temperature weather, providing guidance on selecting sunscreen clothing, creams, and sprays for effective UV protection [1]. Group 1: Sunscreen Clothing - Suitable for outdoor activities like hiking and cycling [2] - Advantages include physical protection without chemical sunscreen, making it suitable for children, pregnant women, and sensitive skin [1] - Disadvantages include limited coverage, potential for poor breathability leading to skin issues, and the need for careful washing to maintain UPF [1][2] Group 2: Sunscreen Cream - Ideal for facial protection and long-lasting effectiveness [5] - Key selection criteria include SPF and PA values, with SPF 50 blocking 98% of UVB rays and PA+++ or PA++++ recommended for strong UV environments [6][10] - Disadvantages include the need for manual application and potential makeup disruption [5][6] Group 3: Sunscreen Spray - Convenient for use, especially after sports or when wearing makeup [7][10] - Important to follow the "three sprays, three not sprays" rule to minimize risks [11][12][13] - Disadvantages include shorter protection duration and inhalation risks, particularly for children [7][10]

Group 1 - The central meteorological station has issued high-temperature warnings for multiple regions in China, with some areas like Beijing, Tianjin, Hebei, and Henan expected to exceed 40°C, making sun protection essential for outdoor activities [1] - During the JD 618 shopping festival, JD Fashion collaborates with well-known brands such as JiaoXia, JiaoNei, MISSION UV, and VVC to offer a variety of sun protection products, including sun hats, masks, and face shields, with discounts of up to 15% and prices as low as 30% off [1][4] - The products feature both functionality and style, such as the Siggi sun protection hat made from UPF50+ fabric, and the JiaoNei cooling sun mask designed for effective facial coverage [1][2] Group 2 - For outdoor high-intensity protection scenarios, the combination of hats and masks provides comprehensive sun protection, with products like the MISSION UV seamless sun hat and JiaoXia face mask utilizing advanced materials and designs for optimal UV blockage [2] - JD Fashion has partnered with Zhonglian Quality Inspection Group to establish quality standards for sun protection products, ensuring consumers can select high-quality items based on material, performance, and functionality [4] - The promotional event encourages consumers to search for "JD sun protection accessories" on the JD app to access a wide range of quality sun protection gear, promoting a cooler summer experience [4]

进入夏季 紫外线逐渐增强 要想保护皮肤 做好防晒是关键 阳光强烈的晴天要防晒 那么阴天没阳光 还需不需要防晒呢？ 一起来看↓ 1 == r and 202 1|终结站 紫外线是导致皮肤晒伤、 老化和黑色素沉积的主要 原因之一。到达地面的太 阳光中的紫外线主要分为 长波紫外线(UVA)和 中波紫外线(UVB)。 不同的防晒指标是啥意思？ SE KE J SPF15：可阻隔约93%的UVB（ 计算公式：1－1/15≈93%） SPF30：可阻隔约97%的UVB（计算公式：1－1/30≈97%） SPF50：可阻隔约98%的UVB（计算公式：1－1/50≈98%） 防晒产品包装上通常标有PA和SPF两个指标，它们是科学选择防晒产品的重要参考指标。 PA是衡量防晒产品对长波紫外线（UVA）防护能力的指标，分为三个级别（以"+"号数量表示防护强度，"+"越多效果越强）： PA+：有效防护UVA（防护时长2~4小时） PA++：较有效防护UVA（防护时长4~8小时） PA+++：非常有效防护UVA（防护时长8小时以上） SPF是衡量防晒产品对中波紫外线（UVB）防护能力的指标。SPF值代表皮肤在紫外线照射下的延迟晒红时间 ...

Group 1 - The core viewpoint emphasizes the importance of sun protection during summer due to increasing UV radiation, which can cause skin damage [1] - Experts categorize sun protection into two types: physical sun protection and the application of sunscreen [2] - Long-wave and medium-wave UV rays from sunlight can lead to skin aging, fine lines, and sunspots, making sun protection crucial, especially for those with sun allergies [4] Group 2 - For sunscreen that has not been opened, it can be used within three years of the production date if there are no signs of separation or unusual texture [6][8] - Opened sunscreen, particularly those with a shaking mechanism, should be shaken well before use, while lotion-type sunscreens should not be used if stored for more than six months [10] - Different demographics and skin types require tailored sun protection methods, with special attention needed for vulnerable groups [10] Group 3 - Special populations, such as the elderly, pregnant women, and those with sensitive skin, should prioritize physical sun protection methods like using umbrellas or hats, and choose less irritating sunscreens [11] - Infants under six months should avoid sunscreen products, relying instead on physical shade, while those over six months can use baby-specific sunscreens moderately [11] - Recommendations for sunscreen include SPF greater than 30 and PA rating of at least two pluses for regular activities, and SPF greater than 50 with PA rating of three pluses for intense sun exposure [13]

Group 1 - The core viewpoint of the articles emphasizes the importance of proper storage and usage of sunscreen products to maintain their effectiveness, countering the myth that opened sunscreen loses its protective ability even within its expiration date [1][2][3] Group 2 - Sunscreen products can be categorized into two types: those containing physical blockers (like zinc oxide and titanium dioxide) which are stable and maintain effectiveness even after opening, and those with chemical blockers (like avobenzone) which are less stable and require careful storage [1] - Proper storage conditions for sunscreen include avoiding direct sunlight and high temperatures, keeping the product dry and sealed, and minimizing transfer to other containers to prevent contamination [2] - Indicators of sunscreen expiration include visible separation, clumping, discoloration, or unusual odors, and a decrease in effectiveness can be tested by observing skin reactions after application [2][3] Group 3 - Effective application of sunscreen requires using an adequate amount, typically the size of a one-yuan coin for facial coverage, and applying it 15 to 30 minutes before sun exposure [2] - Reapplication is recommended every 2 to 3 hours during prolonged sun exposure to ensure continued protection [2] - Sunscreen should also be applied to all exposed skin areas, and physical barriers like hats and umbrellas can enhance protection [3] - It is important to cleanse the skin of sunscreen after sun exposure, using appropriate cleansing products [3]