Cute bear bottle keyring bonus
A large number of reviewers explicitly say they bought or repurchased primarily for the collectible bear-shaped travel bottle, which they describe as adorable, giftable, and useful for travel or on-the-desk use.
Repeat purchase / brand loyalty
Many customers say this is their second, third, or ongoing repurchase, citing consistent results and trust in the Medicube PDRN Pink Collagen line and its serum counterpart.
Influencer and word-of-mouth recommendation
Several reviewers mention buying after seeing it recommended by influencers, on YouTube, or hearing that 'everyone with good skin uses it,' particularly in Japanese and Korean reviews.
Price and value promotions
Buyers frequently cite good CP (cost-performance) value, double-pack/1+1 deals, coupon discounts, and prices being cheaper than buying directly in Korea or from other retailers.
Gift purchases
Multiple reviewers bought the set specifically as a gift for friends or family due to its attractive packaging and set format with two full-size bottles.