Beauty box discovery
Many reviewers first tried the stick as part of an Olive Young monthly beauty box and then purchased it again, showing the sample-to-purchase funnel works well.
Convenience for reapplication
Buyers specifically sought out a portable stick format to reapply SPF over makeup during the day without needing to touch product with hands.
No white cast reputation
Reviews repeatedly cite the lack of white cast as a key reason for choosing this over other sunscreens, especially for deeper or tan skin tones.
Gifting and family use
Several buyers purchased extra sticks for boyfriends, dads, teenagers, and kids who normally resist wearing sunscreen, citing the easy, mess-free application.
Brand trust / Haruharu wonder line loyalty
Existing fans of Haruharu wonder's black rice sunscreen line bought this stick version specifically to try a portable format from a brand they already trust.