Double-pack / 1+1 value promotion
Many reviewers explicitly say they bought or restocked because of the double-pack bundle or Olive Young 1+1 promotion, calling it a great deal versus buying single liners elsewhere.
Long-term repeat purchase / holy grail status
A large share of reviews mention repurchasing the product multiple times (some citing 5-10+ purchases over years), often replacing discontinued favorites like a specific cacao brown shade or other brands' pencil liners.
Influencer / word-of-mouth recommendation
Several Japanese and Korean reviewers cite YouTuber or online buzz as the reason for trying the product for the first time.
Affordable price point
Reviewers repeatedly note the low per-unit cost (e.g., ~350 yen per pencil) as a reason to buy and keep repurchasing versus pricier liquid or gel liners.
Shade variety for natural K-beauty looks
Buyers purchased specific shades (dark brown, cacao brown, muted gray, ash brown) to match mute/soft eye makeup trends rather than harsh black liner.