Sunscreen actively protects your skin from the harmful effects of UVB rays, which are primarily responsible for sunburn. The SPF, or sun protection factor, indicates how long the product provides protection: for example, an SPF 30 sunscreen can protect your skin up to thirty times longer than if you used nothing. A higher SPF means greater safety, especially in summer or under strong sunlight.
UVB and UVA – What’s the difference?
When talking about sun protection, it’s important to clarify the two main types of ultraviolet radiation:
- UVB radiation: This damages the outer layer of the skin and is directly responsible for sunburn. Over time, it can contribute to the development of skin cancer.
- UVA radiation: Penetrates deeper into the skin and is responsible for skin aging (wrinkles, pigmentation spots). Although SPF mainly protects against UVB, Korean cosmetics typically feature a PA rating that indicates protection against UVA.
Why are Korean sunscreens special?
Korean cosmetics are famous for their innovations and high quality. They lead the way in sunscreens as well, offering lightweight formulas, fast absorption, and effective protection. They also often contain skincare ingredients such as:
- Hyaluronic acid: Hydrates and firms the skin.
- Niacinamide: Reduces the appearance of pores and evens out skin tone.
- Green tea extract: Has antioxidant effects, protecting the skin from free radical damage.
- Centella Asiatica: Soothes irritated skin and supports regeneration.
How to choose the right SPF?
Choosing the right sunscreen depends on how long you will be in the sun, your skin type, and the weather. Generally:
- SPF 15: For everyday use when you’re outside only briefly.
- SPF 30: For moderate sun exposure, such as city walks.
- SPF 50+: For intense sunlight, such as during vacations or sports.
PA rating and its meaning
Korean sunscreens often feature the "PA" rating, which shows protection against UVA rays. The number of plus signs (+) indicates the strength of protection:
- PA+: Basic protection
- PA++: Moderate protection
- PA+++: Strong protection
- PA++++: Extremely strong protection
When and how to apply?
Sunscreen should be applied after cleansing and moisturizing your face, but before makeup. It’s important to use enough – about a teaspoon of cream for an average face size. For full protection, reapply every two hours, especially after sweating or swimming.
Is sun protection important in winter too?
Yes! Although sunlight is weaker in winter, the strength of UVA rays does not change, so they can still cause skin aging and pigmentation spots. Korean sunscreens are perfect for winter layered skincare routines due to their light texture.
Korean sunscreens not only provide protection but also care for your skin, so it’s worth investing in a high-quality product. Remember: sun protection is important all year round, as UV radiation is present even on cloudy days.
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