NARINFLA Journal (English)

Sunscreen literacy BLOG NOTE · EN 07 Korean Sunscreen vs US Labels: UV Filters, SPF and PA Read the protection claim and the current rule, not the country stereotype. D By Dajeong Park · NARINFLA founder Published October 7, 2026 Evidence reviewed 2026-10-07 Illustrative sunscreen application. The amount shown is not a measured recommended dose. CONTENTS 01 Why do Korean and American sunscreen labels look different? 02 Does SPF50+ mean more time in the sun than SPF 50? 03 Is PA++++ the same as American Broad Spectrum? 04 Is bemotrizinol still only a proposed US sunscreen ingredient? 05 Does an allowed UV filter prove that the finished sunscreen is effective? 06 How should you compare daily sunscreen with a water-resistant product? 07 What should an American shopper verify before buying Korean sunscreen? FAQ Frequently asked questions In this article Why do Korean and American sunscreen labels look different? Does SPF50+ mean more time in the sun than SPF 50? Is PA++++ the same as Ame...

Menopause and Skin BLOG NOTE · EN 10 Menopause Skin Changes: What Skincare Can and Cannot Do Comfort-focused care, realistic expectations, and the symptoms that deserve more than a new cream. D By Dajeong Park · NARINFLA founder Published October 7, 2026 Evidence reviewed 2026-10-07 Illustrative scene. The model is not a menopause case study or product testimonial. CONTENTS 01 Which skin changes can occur around menopause? 02 Why can familiar products feel different now? 03 What can everyday skincare realistically help with? 04 How can you adjust a routine without making skin angrier? 05 Should itch or a rash simply be accepted as menopause? 06 Can Korean anti-aging labels solve menopause-specific skin changes? 07 What should you take to a clinician rather than a beauty counter? FAQ Frequently asked questions In this article Which skin changes can occur around menopause? Why can familiar products feel different now? What can everyday skincare realistically help with? How can you adju...

Ingredient comparisons BLOG NOTE · EN 06 Tranexamic Acid vs Niacinamide for Dark Spots Different pathways, overlapping formulas, and no universal winner. D By Dajeong Park · NARINFLA founder Published October 7, 2026 Evidence reviewed 2026-10-07 Illustrative skincare scene, not a diagnosis or before-and-after result. CONTENTS 01 How are tranexamic acid and niacinamide different? 02 What does human research tell us about niacinamide? 03 Is topical tranexamic acid better for dark spots? 04 Can topical results justify taking tranexamic acid pills? 05 Does a Korean brightening label prove tranexamic acid is the functional ingredient? 06 How can you choose without chasing the strongest percentage? 07 Why does sun protection still matter when using a pigment serum? FAQ Frequently asked questions In this article How are tranexamic acid and niacinamide different? What does human research tell us about niacinamide? Is topical tranexamic acid better for dark spots? Can topical results justify ...