NARINFLA Journal (English)

Ingredient Evidence BLOG NOTE · EN 04 EGF Serum Benefits: What Studies Do and Do Not Show A study-reading guide for fine lines, texture and the gap between a mechanism and a bottle. D By Dajeong Park · NARINFLA founder Published October 7, 2026 Evidence reviewed 2026-10-07 Staged illustration, not a photograph of an actual trial, laboratory or original report. CONTENTS 01 What EGF serum benefits have human studies investigated? 02 Does EGF’s role in repair prove a serum rebuilds collagen? 03 What can a controlled EGF delivery study tell us? 04 Why do mixed formulas and procedures make EGF claims harder to interpret? 05 How can I tell a strong study claim from a marketing shortcut? 06 How soon should I expect an EGF serum to change my skin? 07 What is a reasonable way to evaluate an EGF serum before buying? FAQ Frequently asked questions In this article What EGF serum benefits have human studies investigated? Does EGF’s role in repair prove a serum rebuilds collagen? What can a contro...

Safety Questions BLOG NOTE · EN 03 Is EGF Safe in Skincare? Cancer and Pregnancy Questions Separate the biological concern from what cosmetic exposure studies can actually establish. D By Dajeong Park · NARINFLA founder Published October 7, 2026 Evidence reviewed 2026-10-07 Illustrative label-checking scene. The image is not evidence of safety. CONTENTS 01 Why does EGF raise questions about cancer? 02 Does topical EGF skincare cause cancer? 03 Does the way EGF reaches the skin change the safety question? 04 What does a patch test or short safety study actually prove? 05 Is EGF skincare safe during pregnancy or breastfeeding? 06 Does a regulated cosmetic or Korean functional label settle safety? 07 When is a clinician’s review more useful than another product claim? FAQ Frequently asked questions In this article Why does EGF raise questions about cancer? Does topical EGF skincare cause cancer? Does the way EGF reaches the skin change the safety question? What does a patch test or shor...

NARINFLA Journal · Ingredient Labels · Published 2026-09-30 · Last reviewed 2026-09-30 · 한국어 Short answer On an ingredient list, EGF (epidermal growth factor) usually appears as sh-Oligopeptide-1 , not as "EGF". Other growth factors use similar "sh-" or "rh-" names, such as sh-Oligopeptide-2 (IGF-1) and sh-Polypeptide-1 (bFGF). They normally sit near the end of the list, and that position alone does not tell you how much is inside. NARINFLA Lifting Booster 3F Ampoule (50 ml). Its label is used as a real-world example later in this guide. You flip the box over, read the full ingredient list, and "EGF" is nowhere to be found, even though the front of the pack mentions it. It has not gone missing. Growth factors are listed under their standardized INCI names, and those names look nothing like the acronyms used in marketing. This guide explains how to spot them, why they appear where they do, and what the current evidence can and cannot t...