Why Korean Sunscreens Are Less Likely to Leave a White Cast
Korean sunscreens are often made with the expectation that they’ll be “used every day as a makeup primer,” so formulas that are less likely to leave a white cast are prioritized.
- There are many types of UV filters available for use
- Lightweight formulas, such as essences and gels, are popular
- Tone-up types (which provide a slight brightening effect) also exist as a separate category
Korean Words on Packaging
- 선크림seonkeurim
sunscreen
- 톤업tonup
tone-up
- 무기자차mugijacha
mineral (non-chemical) sunscreen
- 유기자차yugijacha
chemical sunscreen
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How likely a sunscreen is to leave a white cast depends not just on how many UV filters it contains, but largely on how the overall formula is designed. Powders such as zinc oxide and titanium dioxide can make skin look white because they scatter light on its surface. On the other hand, formulas centered on UV filters tend to be easier to make transparent and to formulate as lightweight essences or gels. Of course, this also varies depending on the pigments and powders in the formula, how much you apply, and how well it suits your skin tone.
In Korean stores, some people look for labels such as “유기자차 (organic filters)” or “혼합자차 (hybrid filters)” rather than “무기자차 (mineral filters)” when they want a transparent finish. If you want a brightening effect, look for “톤업 선크림”; if you don’t want color correction, “투명 선크림” can make it easier to choose. Note that the label category alone doesn’t determine how it feels to use, so if possible, check the color difference against your neck using an in-store tester. Even when trying to prevent a white cast, it’s important to apply the stated amount.