Limited-Edition Packaging & Collectibles
Multiple reviews explicitly mention purchasing for the Wallace and Gromit keychain or penguin doll included with the product, indicating packaging appeal drives transaction decisions alongside product efficacy.
Brand Loyalty & Product Succession
Consumers report repurchasing after a similar product was discontinued, suggesting strong brand trust in SUM37's formulations and willingness to try line extensions.
Price Competitiveness
One reviewer noted purchasing from Oliveyoung at lower prices than Qoo10, indicating price-sensitive international buyers monitor regional price variations.
Influencer & Retail Recommendation
At least one consumer discovered the product via duty-free store staff recommendations in Korea, suggesting offline influencer effects remain significant for K-beauty.