Korean vs Japanese sunscreen: what's different? Scent and staying power
On the @cosme Q&A board in Japan, someone eyeing the CELL FUSION C Laser Sunscreen asked: "What is the difference between Korean and Japanese sunscreens?" It got 20 answers.
What the replies said
- The most common answer: "the ingredients are different"
- Korean ones seem to put skincare ingredients and hydration up front
- Several said the scent is stronger, and they would buy some testers if they were fragrance-free
- Many said Japanese sunscreens are longer-wearing, while Korean ones tend to come off more easily
- On the other hand, one person picks Korean sunscreens because they react to ethanol
- A calm reminder: unless you import it yourself, anything sold in Japan follows Japanese rules, so it is down to preference
The thread landed on "choose by scent, wear and how your skin reacts" rather than declaring a winner.
Desk note If you need something that holds up to sweat and water, look for the "UV water resistance ★/★★" mark on Japanese packaging. The Japan Cosmetic Industry Association adopted a water-resistance test method based on ISO 18861 as a voluntary standard, in use since 1 December 2022. A Korean brand's Japan-market product carrying the mark has been measured the same way.
Do you switch between Korean and Japanese sunscreens? What decides it for you?
Original thread: @cosme Q&A — What's the difference between Korean and Japanese sunscreens? · Reference: Japan Cosmetic Industry Association
According to the Japan Cosmetic Industry Association's Q&A, the stars in "UV water resistance ★/★★" show how strong the water resistance is, not how many hours it lasts. With or without stars, it recommends reapplying every 2–3 hours and after towelling off. Reapplication habits usually matter more than whether the tube is Korean or Japanese. Source: JCIA — Q&A on UV water-resistance labelling