Complement to existing SKIN1004 sunscreen line
Many reviewers already use the brand's liquid or cream sunscreen and bought the stick specifically for convenient daytime reapplication over makeup.
Search for a non-greasy sunscreen for oily/acne-prone skin
Buyers with oily or combination skin explicitly sought this out after other sunscreens left them shiny or greasy, and repurchased once they found it worked.
Recommendations from friends/family or prior use of the brand
Several reviews mention buying because a sister, friend, or dermatologist recommended it, or because they had a good experience with other Skin1004 products.
Comparison shopping against other Korean sun sticks
Reviewers frequently compared it to Beauty of Joseon, Tocobo, and Round Lab sticks, choosing this one for its price, lack of scent, or more silky finish.
Repeat purchase / loyalty
Numerous reviewers state this is their 2nd, 3rd, or 4th purchase, citing consistent performance and no breakouts as reasons to keep buying.