Celebrity/influencer endorsement
Many reviewers mention buying specific shades because they saw them worn by K-pop idol Wonyoung or beauty influencers on Instagram/TikTok/YouTube.
Cute packaging appeal
Numerous Japanese and English reviews say they bought purely for the flower-shaped cap and cute bottle design ('パケ買い').
Repurchase/loyalty
Many reviewers explicitly state this is their second or third tube, or that they trust the AMUSE brand and plan to collect more colors.
Gift purchases
Several reviews describe buying the tint as a birthday or Christmas gift for friends, daughters, or partners.
Sale/bundle pricing
A number of Korean and Japanese reviewers mention buying during sales or in multi-tint sets for good value.