Reputation vs. Birch Juice sunscreen
Many buyers purchased after hearing this is lighter or better-suited to oily/combo skin than ROUND LAB's more famous Birch Juice sunscreen, often as a direct comparison or alternative when that one was out of stock.
Word-of-mouth/viral hype
Reviewers frequently mention buying after hearing 'good reviews' or seeing it recommended online, describing it as living up to hype among viral K-beauty sunscreens like Beauty of Joseon and Skin1004.
Sensitive/acne-prone skin needs
A large share of buyers sought a sunscreen that wouldn't break them out or irritate sensitive, rosacea-prone, or acne-prone skin, citing the minimal, fragrance-free, fungal-acne-safe formulation as the deciding factor.
Repurchase/loyalty
Many reviews explicitly state this is a second, third, or ongoing repurchase and that it has become their 'holy grail' daily sunscreen, indicating strong repeat-purchase behavior.
Gifting
Several reviewers bought it as a gift for daughters, sisters, mothers-in-law, friends, or colleagues, often based on their own positive experience with the brand.