Brand trust from Torriden's ampoule/serum line
Many buyers say they purchased because they already love Torriden's Dive-In hyaluronic acid or Cica ampoule products and wanted to try the mask from the same trusted line.
Buy-1-Get-1 promotions
A very large share of reviews mention buying specifically because of a 1+1 (BOGO) deal on Olive Young, calling it 'worth it' or 'the best deal ever.'
Trial after experiencing it in Korea
Several reviewers, especially Japanese customers, say they first tried the mask during a trip to Korea and repurchased online since it's not sold domestically in their country.
Special/self-care occasion use
Buyers frequently describe it as a 'reward mask' or special treat for skin, purchased for occasional pampering rather than daily use.
Gifting
Some reviewers bought it as a gift for friends or partners, noting the recipient was pleased with it.