The Importance of Sun Care and UV Protection Principles
Sun care is not just a preparation for going out; it is the most fundamental defense system against skin aging. UV rays penetrate deep into the skin, destroying collagen and causing pigmentation, making daily sunscreen use essential. The Korean beauty market offers products in various formulations to defend against daily UV exposure.
Types of UV Rays and Their Effect on Skin
- UVA: Penetrates deep into the skin, causing wrinkles and loss of elasticity.
- UVB: Causes sunburn on the skin's surface, leading to redness and the production of melanin.
Understanding Sunscreen Labels
Key indicators to check when choosing sunscreen are SPF and PA. SPF represents the UVB protection index, and a higher number means a longer duration of protection. PA indicates the level of UVA protection, and more '+' signs signify stronger protection. For daily use, SPF 30 and PA+++ are appropriate, while for frequent outdoor activities, it is better to choose SPF 50+ and PA++++ products. Additionally, sunscreens are divided into physical and chemical types based on their ingredients, and it is important to choose a texture that suits your skin's sensitivity.




