Long-standing cult/repurchase status
Many reviewers describe having repurchased the product 3-10+ times over years, calling it a 'holy grail' or 'staple' they can't live without.
Solves straight/monolid lash curl problem
A large share of buyers specifically bought it because mainstream mascaras and curlers failed to hold a curl on their straight or downturned Asian lashes.
Word-of-mouth / social media hype
Several reviewers mention buying because it is a 'super popular brand on social media' or was recommended by a friend, and found it 'lives up to the hype.'
Affordable price / sales
Multiple reviews cite good value, affordability, and buying extra units when on sale as a purchase driver.
New brown/black shade curiosity
Existing users of the clear/natural version purchased the newer black or brown shades to try color variants after positive experience with the original.