Repeat/repurchase loyalty
Many reviewers explicitly state this is their 2nd, 3rd, or 4th repurchase and call it a daily routine staple, indicating strong repeat-buy behavior.
Sensitive/dry skin reputation
Buyers with sensitive, acne-prone, or dry/compromised-barrier skin specifically sought this out for its gentle, non-irritating hydration.
Word-of-mouth and social proof
Reviewers mention buying after seeing it on Instagram/YouTube, from friend recommendations, or because of good previous reviews of the brand's masks.
Trying color/line variants
Existing fans of the pink (collagen) line bought the blue Cera-nol version to compare or complete the set, showing cross-line collection behavior.
Sample-to-full-size conversion
Several reviewers received a sample first and were impressed enough to purchase the full-size jar, sometimes multiple times.