Cica/soothing ingredient reputation
Many buyers purchased specifically because it is a well-known cica (centella) product marketed for calming and skin-barrier repair, often searching for a 'cica ampoule' after skin flare-ups.
Influencer/YouTuber recommendation
Several Korean and international reviewers say they bought the product after seeing it recommended by YouTubers or influencers ('유투버한테 영업 당해서 써봤는데').
Repurchase/loyalty to Round Lab brand
A large share of reviews are explicit repurchases (2nd–5th bottle), with customers saying they trust Round Lab products generally and buy this as a routine staple.
Sensitive/acne-prone skin needs
Buyers with rosacea, redness, or acne-prone/sensitive skin bought it specifically to address flare-ups, breakouts, and irritation from other actives like retinol.
Gift purchases
Multiple reviewers bought it for family members (sons, boyfriends, cousins, sisters) who have sensitive or acne-prone skin, suggesting broad appeal beyond the original purchaser.