PDRN ingredient trend
Many buyers purchased specifically because PDRN (polydeoxyribonucleotide) is a trending K-beauty ingredient they wanted to try, citing its reputation for anti-aging and deep penetration.
Influencer/social media recommendation
Several reviewers cite YouTubers, Instagram influencers, or friends who recommended the serum as the reason for purchase, showing strong social-proof driven demand.
Value of the 2-bottle set
The 40ml x 2 set at discount is frequently mentioned as a bargain ('CP值高', 'great value for money'), with buyers appreciating getting two full-size bottles for a lower unit price.
Mediheal brand trust
Existing fans of the Mediheal brand (especially their masks) bought this serum expecting the same quality, and many report loyalty and repeat purchases across the brand's PDRN line.
Gifting
A notable share of reviews describe buying the serum as a gift for mothers or friends, particularly for mature or tired-looking skin.