From Reapplying Sunscreen to Its Effectiveness and Cleansing Methods!

Ultraviolet rays are considered one of the biggest causes of skin aging, and prolonged exposure can lead to decreased skin elasticity, pigmentation, and fine lines. To help prevent this kind of skin damage, it is important to apply sunscreen regularly. However, applying it just once in the morning is not enough, and reapplying at regular intervals can help maintain its UV protection effect. When spending time outdoors and being continuously exposed to sunlight, you should reapply sunscreen at least every 2 to 3 hours for effective protection.

When reapplying sunscreen, it is best to lightly remove excess oil and sweat first so the previously applied sunscreen does not clump up. After gently removing the oil from the skin surface with powder tissue or oil-absorbing paper, take an appropriate amount in the palm and apply it by lightly patting it on. If you are wearing makeup, rubbing sunscreen on with your hands can disrupt your makeup, so using a cushion-type UV protection product or a spray-type sunscreen is also a good option. In addition, when engaging in outdoor activities, using a product with a high SPF and PA rating is more effective, and even when staying indoors, applying sunscreen helps protect the skin.

The effectiveness of sunscreen can vary depending on the UV-blocking ingredients. In general, sunscreen is divided into physical blockers and chemical blockers. Physical blockers reflect UV rays from the skin’s surface to block them, while chemical blockers are absorbed into the skin and absorb and break down UV rays. If your skin is sensitive, products containing physical blockers (zinc oxide, titanium dioxide) may be more suitable, and if you want a lighter feel, products containing chemical blockers may be more useful. If you spend a lot of time outdoors and are exposed to strong UV rays for long periods, it is advisable to choose a product with SPF 50 or higher and PA+++ or higher.

Because sunscreen remains on the skin throughout the day, thorough cleansing is necessary at night. If sunscreen stays on the skin for too long, it can clog pores and cause skin trouble, so it is important to cleanse thoroughly. If sunscreen is not washed off properly, residue can remain on the skin surface, interfere with sebum secretion, and cause issues such as blackheads and whiteheads. Therefore, even on days when you do not wear makeup, if you have used sunscreen, it is a good idea to consider double cleansing. First, use an oil-based or water-based cleanser to dissolve the sunscreen remaining on the skin surface, then use a mildly acidic cleanser to wash gently, which can help reduce skin irritation. After cleansing, it is important to provide enough moisture so the skin does not become dry.

Sun protection is not something to focus on only in summer; it is something that should be managed throughout all four seasons. Even on cloudy days or indoors, UV rays can affect the skin, so it is a good idea to apply at least SPF 30 sunscreen even on days when you do not go outside. If you apply sunscreen correctly and care for your skin consistently, it can greatly help prevent skin aging and maintain healthy skin. Building good habits and protecting your skin from UV rays is more important than anything else.