Brand trust & reputation
Many buyers cite loyalty to Round Lab or its Dokdo line (toner, sunscreen, cleansing oil) as the reason for trying the cleansing water, expecting the same gentle formulation.
Word-of-mouth / reviews
Numerous reviewers say they purchased after reading positive reviews or seeing it ranked as a top cleansing water on Olive Young.
Value/price for large volume
The 1+1 (2x400ml) set is repeatedly praised as a bargain, with reviewers noting it's cheaper than Bioderma for a much larger quantity.
Repurchase/loyalty
A large share of reviews are repeat purchases (2nd, 3rd, even 10th+ bottle), often stocked up during sales.
Gift purchases
Several reviewers bought it as a gift for friends, boyfriends, or family members based on their own satisfaction with the brand.