700-Won Sheet Masks: The K-Beauty Bargains Hiding in Korea's Convenience Stores

In the middle of Seoul's Myeongdong shopping district, some foreign visitors stop in their tracks at a convenience store window: a sheet mask price tag reading just 700 won. A few steps away, an Olive Young store displays similar sheet masks priced well above 10,000 won. Same K-beauty mask, wildly different price — why?

At a glance: GS25 sells a Dewytree sheet mask for 700 won and mini Mediheal items for 1,000 won each (Economist Korea, August 2024) · CU's in-house Angeluca sheet masks and creams run about 3,000 won (Maeil Business Newspaper, November 2024) · Daiso's exclusive Miimo by Mamonde hydrogel sheet mask costs 1,000 won (Daisomall, checked October 2026) · Olive Young's average sheet-mask price is 16,275 won, with Mediheal products averaging 12,171 won (BeauticsLab, June 2025) · last year's convenience-store beauty sales grew 16.5% at CU, 45.6% at GS25, and 20% at 7-Eleven (Herald Business, May 2025).

Korean convenience stores no longer sell just triangle kimbap and soft drinks. GS25 teamed up with skincare brand Dewytree to sell sheet masks for 700 won, toner and multi-cream for 5,000 won each, and serum for 7,000 won, while also stocking two mini-size Mediheal items at 1,000 won apiece. CU followed with its own Angeluca beauty line — a collagen sheet mask, vitamin C serum, and moisture cream — each priced at 3,000 won. Even 7-Eleven jumped in with Medi-Peel sunscreen and serum sold as 3,000-won single-use pouches. The payoff has been real: beauty-category sales rose 16.5% year-on-year at CU and 45.6% at GS25 last year, while 7-Eleven's beauty sales grew 20% in 2024 alone.

Discount chain Daiso is just as competitive. Amorepacific's minimalist beauty line Miimo by Mamonde makes a Daiso-exclusive 'Pack-mi-in Hydrogel V Mask' that sells for 1,000 won a sheet, and the stores stock sheet masks ranging from 500 to 3,000 won. Olive Young, by contrast, prices its sheet masks at an average of 16,275 won, and even Mediheal — its best-selling mask brand — averages 12,171 won. Products carrying the same 'sheet mask' label can end up more than 20 times apart in price, simply depending on where you buy them.

The key point is that convenience-store and Daiso products are not knockoffs — they're genuine collaborations with skincare brands like Mediheal and Dewytree that also sell at Olive Young. A nearby convenience store, open 24 hours and found on nearly every block across the country, is the easiest option when your skin feels parched late at night. For concentrated serums, limited editions, or a brand's full lineup, Olive Young or duty-free shops still make sense — but for an everyday sheet mask you'll use once and toss, checking the convenience store or Daiso first can save real money.