Dermatologist recommendation and medical endorsement
Multiple reviewers explicitly mention purchasing on dermatologist advice or because it is used in hospitals and recommended by skin doctors, establishing high professional credibility.
Sensitive skin suitability and previous brand loyalty
Many consumers repurchase after successful first use, citing the Zeroid brand's reputation for gentle, non-irritating formulations suitable for reactive and compromised skin barriers.
Celebrity and influencer visibility
At least one reviewer noted buying because Korean celebrities and doctors recommend the product, indicating social proof and aspirational positioning drive some purchases.
Post-procedure and medical skin care need
Several reviews mention using the cream after dermatological procedures (pigmentation removal, injectables) on professional recommendation, indicating clinical use cases.
Gift purchasing for others with sensitive skin
One review explicitly mentions purchasing as a gift for a family member, suggesting the product's reputation makes it a trusted choice for gifting to those with skin concerns.