The more expensive sunscreen equipment is, the better?, Facing high-temperature "grilling" products | chemistry | selection | physics | skin | sunscreen | sunscreen clothes | sunscreen
Recently, the hot weather has sparked discussions about sun protection topics, such as "physical sun protection or chemical sun protection" and "sunscreen clothing is outrageously expensive", all of which are hot search tags on social media. How to choose sun protection equipment in the scorching sun? How can sun protection be more effective?
Physical sun protection or chemical sun protection?
Jiang Yuan, Deputy Chief Physician of the Dermatology Department at Tsinghua Changgeng Hospital, told China News Network that skin characteristics and application scenarios are the two major reference factors for consumers to choose sunscreen products.
Jiang Yuan introduced that with the arrival of summer, temperatures soar and the intensity of sunlight is high, making long-term exposure to sunlight easy to cause sunburn. For example, outdoor travel, swimming at the beach or bathhouse, participating in outdoor music festival activities, etc. At this time, it is necessary to do a good job of sun protection, such as taking an umbrella, wearing a hat and mask, wearing professional sun protection clothing, applying sunscreen to exposed areas, and wearing sunglasses to protect the eyes.
The selection of sunscreen should be based on the sensitive characteristics of the skin. Physical sunscreen products should be prioritized for sensitive skin. Before application, a small area of sunscreen can be applied to the inner skin of the wrist for 72 hours to observe for any allergic reactions, such as redness, swelling, blisters, and itching. It should be safe and allergy free before use.
Jiang Yuan reminds that all sunscreen is not enough to block the damage of ultra strong medium and long wave ultraviolet rays to the skin, and professional sunscreen clothing is needed to physically shield and protect one's skin.
The more expensive sunscreen clothes are, the better?
Yang Longfeng, a technical evaluation engineer from the evaluation agency "Dad Evaluation", told China News Network that based on the dozens of sunscreen clothes they have evaluated, the current market for sunscreen clothes is constantly competitive in price, and the development of products in technological updates and upgrades is relatively slow. The current main method is to add UV absorbing finishing agents inside the fibers or to add anti UV finishing agents such as nano titanium dioxide or zinc dioxide in the post finishing stage.
He said that the price and quality of sunscreen clothing are not necessarily proportional, so there is no need to blindly worship big brands and high prices. When ordinary people choose sun protection clothing, they prefer those with UPF sun protection label tags. The current national standard is GB/T 18830-2009, and UPF50+indicates excellent sun protection performance.
Yang Longfeng introduced that if the fabric density is sparse, the light starts to pass through at thinner areas of the fabric, or if wearing small size sun protection clothing that is too tight, its sun protection effect will decrease; In addition, when the fabric is sweaty and moist, the sun protection effect will decrease.
How to choose sunscreen?
Jiang Yuan introduced that sunscreen includes physical sunscreen and chemical sunscreen. Physical sunscreen mainly consists of oil and fat components such as zinc oxide and titanium oxide. Although it has mild and non irritating advantages, the disadvantage is that it is relatively greasy. If high sun protection factor physical sunscreen is used, without paying attention to makeup removal and the order of use, it is easy to cause pore blockage, even acne or the growth of acne.
Chemical sunscreen is an important category of sunscreen, and its ingredients are usually chemical. Although it has good penetration, its disadvantage is that it can easily irritate the skin, cause allergic problems such as redness and swelling, and is related to blind or non-standard use of chemical sunscreen.
She said that when choosing sunscreen, two ingredients can be chosen: zinc oxide and/or titanium dioxide. In addition, the cleanliness of sunscreen should also be taken seriously. Waterproof and greasy sunscreen products should use makeup remover products, such as makeup remover oil or olive oil, and then wash the face with cleanser. After that, moisturizing and hydrating should be done well. If sunscreen indicates the presence of physical sunscreen powder components, special attention should be paid to cleanliness to avoid clogging of pores.
Jiang Yuan reminds not to panic if you have sunburn. Mild light protection, rinse with cold water and apply ice appropriately. Moderate application of soft corticosteroid cream. Severe sunburn can cause skin redness, swelling, and blisters accompanied by pain, and even systemic poisoning symptoms. This requires urgent medical attention.
