How to protect yourself from the sun correctly?

Sun protection is a key step in protecting the skin from UV damage, mainly includingPhysical sunscreen(such as sun hat, sun protective clothing) andchemical sunscreen(like sunscreen).For correct sun protection, you need to pay attention to the following points:Choose the right sunscreen product(SPF value, PA value),Application method and dosage,Frequency of recoatingandCombined with physical protection.In addition, sun protection strategies also need to be adjusted for different skin types, seasons and scenarios.The following are specific methods and precautions.

Choice of sunscreen productsis the first step.For daily commuting, you can choose sunscreen around SPF30, while for outdoor activities, you need SPF50+ and waterproof products.The PA value represents the ability to protect against UVA. The more “+”s, the stronger the protection.Sensitive skin is recommended to choose physical sunscreen (such as zinc oxide, titanium dioxide), while oily skin can choose chemical sunscreen with light texture.Well-known brands such asAnresa (Shiseido),La Roche-Posay,Avèneetc. all have targeted products.

Correct application methodDirectly affects the sunscreen effect.Use enough sunscreen (about the size of a 1 yuan coin) and apply it 15-30 minutes before going out.Easily neglected areas such as behind the ears, neck, and insteps also need to be covered.If you do outdoor activities for a long time, reapply every 2 hours. Reapply immediately after sweating or swimming.Spray-type sunscreen needs to be sprayed evenly and applied by hand to avoid missing.

The auxiliary effect of physical sunscreenNot to be ignored.Even if you use sunscreen, you should still use itwide brimmed hat,sunglassesandUPF50+ sun protection clothing.Try to avoid direct sunlight during periods of strong ultraviolet rays (10:00-16:00).Sun protection is still required on cloudy days or in winter because UVA can penetrate clouds.It is recommended for children and pregnant women to use physical shielding to reduce irritation from chemical sunscreens.

To sum up,Effective sun protection = product selection + correct use + physical protection + scene adaptation.Developing a daily sun protection habit can prevent photoaging, pigmentation, and even skin cancer.ReferenceAmerican Academy of Dermatology (AAD)It is recommended that broad-spectrum sunscreen (SPF30+) be used year-round.Common products such asNivea UV sunscreen spray,Bioderma sunscreen lotionetc. The specific choice needs to be based on personal needs.

Quote sources:
1. American Academy of Dermatology (AAD) Sun Protection Guidelines
2. World Health Organization (WHO) UV protection recommendations
3. Brand official website product data (Shiseido, La Roche-Posay, Avène)