Viral/buzz and influencer recommendation
Many reviewers say they bought the mask because it was 'trending,' 'buzzing,' or recommended by YouTubers/friends, indicating strong social-media-driven demand.
Sale and discount pricing
A large number of reviews mention buying specifically during Olive Young sales or because the price was cheaper than in Korea or local drugstores, showing high price sensitivity and promotion responsiveness.
Repurchase/loyalty to the numbuzin line
Numerous customers state this is their 3rd, 5th, or 'countless' repurchase, and many compare it favorably to numbuzin's No.1 and No.3 masks, showing strong brand loyalty within the product family.
Anticipated sun-damage and brightening needs
Reviewers frequently buy in bulk ahead of summer or after heavy UV exposure, purchasing specifically to counter tanning, dark spots, or dullness.
Gifting
Several reviewers purchased the mask as a gift for mothers, daughters, or friends, citing the brand's popularity and pleasant results as reasons for gifting.