Reputation for hydrating, non-drying formula
Many reviewers specifically sought this product because they struggle with concealers that dry out or crease under the eyes, and word-of-mouth/reviews promised a moisturizing alternative.
PDRN/salmon ingredient appeal
Several reviewers mention buying it because of the salmon PDRN ingredient story, associating it with added skincare benefit beyond typical concealers.
Repurchase/brand loyalty
Numerous long-term users explicitly repurchased after using up previous units or after a reformulation, indicating strong repeat-purchase behavior.
Viral/social media and word-of-mouth influence
Reviewers mention discovering the product via Instagram influencers or general online buzz ('話題になっていたので購入', 'trending'), driving trial purchases.
Value for money and size
Multiple reviews note the product lasts a long time relative to price, calling it good value with generous volume for the cost.