◎ How to Use Sunscreen to Slow Down Skin Aging ◎
1. How UV Rays Affect the Skin UV rays are categorized into UVA, UVB, and UVC. UVC is mostly absorbed by the ozone layer, so it’s not a major concern. However, UVA penetrates deep into the skin, damaging collagen and elastin, accelerating aging, while UVB stimulates melanin production, leading to dark spots and pigmentation. Both types of UV rays dry out the skin, reducing its elasticity and regenerative ability. 2. Choosing the Right Sunscreen for You During seasons with strong UV exposure, it’s important to choose a sunscreen with strong water resistance and long-lasting effect: •Dry skin: Moisturizing texture •Oily skin: Lightweight and refreshing formula •Sensitive skin: Products with gentle, non-irritating ingredients Tone-up sunscreens are also popular these days. A natural finish and smooth application without clumpingare key. Products that also contain skincare ingredients are ideal for maintaining overall skin health. 3. How to Properly Use Sunscreen To ensure full UV protection, apply more sunscreen than you think is necessaryand reapply every 2–3 hours: A proper amount is about two finger lengthsof product •Don’t forget your neck and ears •Use sunscreen even indoors or on cloudy days, as UV rays can still penetrate •Be cautious with expired products, as they may have reduced effectiveness Since ordinary clothing does not completely block UV rays, it’s best to apply sunscreen even to areas covered by clothesfor full protection (Hyangjang, No. 66). | 
