Cute limited-edition packaging (Miffy collaboration)
A very large share of reviews cite the Miffy character packaging as the reason for purchase, sometimes independent of needing the product itself, with buyers collecting multiple colors for the collectible tins.
Repeat/loyal purchase of trusted formula
Many reviewers explicitly state this is their 2nd, 3rd, or even 5th tube, indicating strong repurchase loyalty once they find a shade that works for their hair color.
Word-of-mouth and social buzz
Several reviewers mention buying because the product was 'trending' (バズってた) or recommended by a friend, suggesting influencer/social media discovery drives trial.
Need to mute dark/thick natural brow color
Buyers with black or dark brown hair frequently purchase specifically to lighten or soften the appearance of naturally dark, thick eyebrows for a softer makeup look.
Affordable price point
Multiple reviews describe the price as reasonable or good value ('コスパ'), especially when caught on sale or bundled with other rom&nd items.