NARINFLA Journal (English)

Ingredient evidence BLOG NOTE · EN 05 Adenosine in Korean Skincare: Reading Wrinkle Claims The ingredient, the Korean claim, and the evidence are three different things. D By Dajeong Park · NARINFLA founder Published October 7, 2026 Evidence reviewed 2026-10-07 Illustrative texture scene. Appearance alone does not identify adenosine or its concentration. CONTENTS 01 What is adenosine doing in a wrinkle-care formula? 02 Does Korean recognition mean every adenosine product is approved? 03 Can the percentage tell you whether a wrinkle claim is valid? 04 What do human wrinkle studies actually show? 05 How should you compare a modest claim with an inflated one? 06 What should you check before buying an imported bottle? 07 What is a reasonable expectation from adenosine skincare? FAQ Frequently asked questions In this article What is adenosine doing in a wrinkle-care formula? Does Korean recognition mean every adenosine product is approved? Can the percentage tell you whether a wrinkle cla...

NARINFLA Journal · Ingredient Labels · Published 2026-10-01 · Last reviewed 2026-10-01 · 日本語 Short answer A functional cosmetic ( 기능성화장품 ) in Korea is a cosmetic that has been reviewed by, or reported to, the Ministry of Food and Drug Safety (MFDS) for one set benefit, such as brightening, wrinkle improvement or UV protection. It can then print that approved claim, but it is still a cosmetic, not a drug. Most of what a Korean functional cosmetic is allowed to say is printed in small Korean text on the side or back of the box. The front of a K-beauty box sells the story. The legal facts sit in a short line of Korean on the side panel: 기능성화장품 , "functional cosmetic". Those six characters tell you the product passed a government check for one specific benefit, and they also limit exactly what the product may claim. Here is how the system works, which numbers are fixed in Korean rules, and what the label does not promise. What does “functional cosmetic” mean in Kore...