The BeautySUDA journal
korean skincare
reviews & insights
Reviews and expert insights from Korean dermatologists, beauty YouTubers and communities — translated into English, with the original source linked.
01 · Latest
fresh translations
Insight
Thermage vs Ultherapy
YouTube ·
Thermage vs Ultherapy explained by a Korean dermatologist: depth, who each suits, hollow cheeks, burns, genuine tips and whether either really works.
Insight
What really fixes dehydrated skin
YouTube ·
Dehydrated skin explained: Jamti says the cause is barrier damage, not missing inner moisture, and why barrier cream beats low-molecular hyaluronic acid.
Insight
How to apply sunscreen correctly
YouTube ·
How to apply sunscreen the right way: a Seoul National University dermatologist covers wearing it indoors, how much to use, SPF vs PA and mineral vs chemical.
Review
Underrated Korean skincare brands
YouTube ·
Underrated Korean skincare brands, per creator Jamti: a bakuchiol “day retinol,” a gentle cushion, Illiyoon lotion, soothing gels and a sunscreen few know.
Insight
Why fakes show up on official Amazon listings
Fake K-beauty on Amazon usually comes from third-party sellers taking the Buy Box on a real listing. Here's how it happens and how to check the seller first.
Insight
Dr. Melaxin real vs fake
Is your Dr. Melaxin real? Paste the Amazon link to see if it's sold by the official Dr.Melaxin_Official store (BRAND501 CORP.) or a reseller. Free check.
Insight
Is eye cream worth it?
YouTube ·
Is eye cream worth it? Korean dermatologist Choi Won-jun explains why most eye creams work like a regular moisturizer, and what to use instead.
Review
Korean skincare for dry skin: '25–'26 picks
theqoo ·
Korean skincare for dry, dehydrated and sensitive skin: the products 137 Korean beauty nerds recommended most in TheQoo's 2025 survey, translated.
Insight
HIFU vs RF vs EMS vs microcurrent chart
YouTube ·
HIFU vs RF vs EMS vs microcurrent, LDM, galvanic and electroporation in one chart: how each works, how it feels, strengths, limits and example devices.
Review
Beauty devices, Part 3: strongest device & LG Pra.L
YouTube ·
A Korean beauty YouTuber on the LG Pra.L Superform Thermashot Ultimate (RF, microcurrent, EMS, electroporation) and her pick for the strongest at-home device.
Review
Beauty devices, Part 2: EMS vs microcurrent
YouTube ·
Microcurrent vs EMS for the face, plus galvanic and electroporation devices: how they feel and differ, from a Korean YouTuber who tested 46 devices.
Review
Beauty devices, Part 1: HIFU vs RF vs LDM
YouTube ·
HIFU vs RF vs LDM for your face: a Korean beauty YouTuber who owns 46 at-home devices explains what each does and what to check before buying.
Insight
Does topical PDRN actually work?
YouTube ·
Does PDRN work in creams and serums? A Korean doctor explains why topical PDRN struggles to pass the skin barrier and reach the dermis. English translation.
Insight
Should you use a sheet mask every day?
YouTube ·
Is it OK to use a sheet mask every day? Korean doctor Lee Sang-wook explains when a daily mask is fine, when it backfires, and how often to use active masks.
Insight
Korean skincare tips from beauty nerds (TheQoo)
theqoo ·
Korean skincare tips from a long-pinned TheQoo post: eight points from a Korean beauty nerd on routines, pricey products, ingredients and DIY. Translated.
02 · How we translate
reviews and insights, straight from the source
Reviews of products and devices from Korean creators and communities, and insights from Korean doctors, all translated into English. Every article links the original.
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