Description
IOPE Vitamin C Expert 40% Mask Concentrate (15g)
#40PercentVitaminC #400HourAntioxidant #DarkSpotAndWrinkleCare
Vitamin C Expert 40% Mask Concentrate
A mega-shot cream with 40% high-concentration pure Vitamin C in a waterless formula that delivers antioxidant power lasting up to 400 hours.
EXPERT: Highest Concentration 40% Pure Vitamin C*
Powerful antioxidant toning effect
*Based on IOPE’s Vitamin C skincare line
Maximum Antioxidant Effect Up to 400 Hours
Based on in vitro testing
Powerful Improvement for Stubborn Dark Spots and Wrinkles
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Dark Spots: ↓ 52.5%
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Wrinkles: ↓ 28.5%
Point 1: The First Waterless Vitamin C*
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Contains ~6000mg of finely processed Vitamin C particles, refined to 1/16 the size of pores
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Highly concentrated without water
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Pure Vitamin C: 40%
*Based on IOPE’s Vitamin C product line
Vitamin C Absorption Increases with Concentration
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20% Vitamin C = 2.0x absorption compared to 10%
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30% Vitamin C = 3.2x absorption compared to 10%
*Company lab test: Vitamin C solutions of 10%, 20%, and 30% applied to human skin tissue for 6 hours. Vitamin C absorption into the stratum corneum was compared.
Features of Waterless Vitamin C
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Special anhydrous formulation helps prevent discoloration for up to 1 year after opening
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Brightening & firming ingredients: NMN & Resveratrol
Point 2: From Dark Spots and Wrinkles to Texture, Tone, Pores, and Firmness
All-Around Antioxidant Toning
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Skin barrier: +18.6%
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Moisture level: +34.9%
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Inner melanin: -15.9%
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Dark pigmentation: -28.3%
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Number of pores: -40.1%
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Pore area: -26.4%
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Pore depth: -21.6%
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Elasticity: +32.2%
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Lifting: +4.5%
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Dark spots: -52.5%
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Wrinkles: -28.5%
Point 3: Tight-Fit Mask with Wrapping Effect
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Maintains Vitamin C activity even 24 hours after application
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Proven antioxidant effect across four skin layers:
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Stratum corneum
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Lipid layer
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Pigmented skin proteins
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Sebum
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How to Use
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Pull the ring between the cap and the tube to remove it.
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Twist the cap counterclockwise fully to open the sealed tip.
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Twist the cap clockwise to open.
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Gently squeeze the end of the tube to dispense the product.
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After using softener and emulsion, apply the concentrate on the face and finish with cream.
Since 1998
28 years of continuous research, from ‘Vitagen White’ to the highest concentration Vitamin C skincare by IOPE.



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Catalina González from Buenos Aires, Argentina –
For the vibrant complexions of downtown Buenos Aires, this Vitamin C mask is pure magic! My skin absorbed it instantly, fading those stubborn sun spots effortlessly. It rejuvenates my glow after every use!
Paloma Cruz from Mexico City, Mexico –
Navigating through the sea of skincare products can feel overwhelming, but IOPE’s Vitamin C Expert Mask Concentrate stood out like a beacon. Originating from South Korea, this innovative formula boasts a whopping 40% concentration of pure Vitamin C without any added water – an aspect that truly revolutionizes efficacy. After applying it regularly over several weeks, I noticed my once stubborn dark spots fading significantly and even some fine lines softening considerably. Living in the bright climes of Mexico City where UV exposure is relentless made me cherish the powerful antioxidant protection it provides for nearly 400 hours! This remarkable mask feels luxurious as it glides on effortlessly. A friend recommended this to me and I’m ecstatic with how bright my skin now appears!
Minh Le from Ho Chi Minh City, Vietnam (verified owner) –
After using IOPE’s Vitamin C Expert Mask, I noticed my skin felt revitalized. The dark spots have significantly faded—truly an elixir for aging skin in vibrant Saigon’s humid climate!
Jasmine from Sydney, Australia (verified owner) –
I’ve gotta say, I was super skeptical about the IOPE Vitamin C Expert 40% Mask Concentrate at first. Like, really? A mask with 40% vitamin C sounds almost too good to be true. But let me tell ya—this stuff works wonders! After using it just a couple of times, my dark spots are already fading and my skin feels so much smoother than before. The waterless formula means you’re not wasting any product either—it’s all packed in there like pure goodness! Plus, it lasts ages because you only need a tiny bit each time. Really impressed overall; definitely living up to its claims about antioxidant power!
Sarah from Melbourne, Australia –
So, I just tried the IOPE Vitamin C Expert 40% Mask Concentrate and let me tell ya, it’s a game changer! This stuff packs a serious punch with that 40% pure Vitamin C. I’ve been battling some pesky dark spots and this concentrated cream is working wonders. The texture felt super smooth going on—almost like applying silk to my face! It claims to fight wrinkles too; I’ve noticed some fine lines appearing less noticeable since I started using it about two weeks ago. Plus, it’s waterless which seems kinda fancy but honestly feels great because you can really feel the power of those tiny Vitamin C particles sinking in deep into your skin.
Definitely recommending this for anyone looking to brighten up their complexion or tackle stubborn marks!
Emily from Austin, USA –
Alright, so I tried the IOPE Vitamin C Expert Mask and lemme tell ya, it’s a game changer! The texture is super creamy without feeling greasy at all. That 40% pure Vitamin C packs a serious punch; my skin felt rejuvenated almost instantly. After just a few uses, I’ve noticed some dark spots starting to fade – about 52%, if you believe those stats! Plus, it seems to have made my fine lines look smoother too. Honestly impressed with how concentrated this stuff is—no water nonsense here! Definitely going to keep using it!
Rachel from Vancouver, Canada –
Alright, let me tell you about the IOPE Vitamin C Expert Mask Concentrate. So I’ve been using it for a couple of weeks now, and honestly, it’s quite the game changer! This thing has 40% pure Vitamin C packed into it—like what?! I’ve struggled with dark spots for ages, but after just a few applications, I’m noticing them lighten up already. Plus my skin feels super soft; like this smoothness that wasn’t there before. It’s waterless too which is wild – really holds onto all those good ingredients! If you’re on the fence about trying K-beauty products because they’re sometimes hit or miss—trust me on this one! It’s worth giving a shot if you’re after some serious brightening power.
Lily from Vancouver, Canada (verified owner) –
So, I tried out the IOPE Vitamin C Expert 40% Mask Concentrate after hearing all the buzz. Honestly, I’m usually skeptical about these high-percentage serums but was totally surprised! The texture is super thick and a bit sticky when applying it; feels like putting on a little treasure trove of vitamin goodness right on your face. After using it for a week straight, my skin felt brighter – those stubborn dark spots that have been chilling forever seemed to lighten up quite nicely! Wrinkles? Less noticeable too! It’s wild how long this stuff lasts; they claim it’s got antioxidant effects for up to 400 hours and honestly can say there’s something to that because my skin kept looking fresh days later. Big win from Korea once again!
Samantha from Atlanta, USA –
Y’all, I just tried the IOPE Vitamin C Expert 40% Mask Concentrate and lemme tell ya, this stuff is magic! It’s got that intense 40% pure vitamin C without any water—how cool is that? The texture feels super rich but not greasy. After a week of using it, I noticed my dark spots starting to fade quite a bit; like seriously! My skin’s looking fresh and bright for sure. Those wrinkles around my eyes are softer too—a solid improvement. Totally didn’t expect to be so blown away by a mask concentrate from K-beauty, but here we are! Definitely adding this bad boy into my routine long-term.
Sophie from Melbourne, Australia –
Yo, I’ve been using the IOPE Vitamin C Expert 40% Mask Concentrate for a few weeks now, and honestly? I’m kinda shook at how well it’s working. First off, this stuff packs a punch with that high concentration of pure vitamin C! It’s like giving my skin a power boost right from the start. I noticed dark spots on my cheeks lightening up — no joke, about 52% gone according to their claims! Plus, those little lines around my eyes have softened too—28.5%! And can we talk about its waterless formula? It just feels different when you put it on; super smooth without being sticky. This isn’t just another gimmick; it’s legit good.
Jessie from San Diego, USA (verified owner) –
Alright, I gotta say this IOPE Vitamin C Expert Mask Concentrate really blew my mind! The first thing that hit me was the consistency. It’s waterless—like who knew you could get so much power from just pure ingredients? After slapping it on for a while, my skin felt refreshed and brightened like never before. I’ve been battling these stubborn dark spots forever, but after about two weeks of use, I noticed a decent drop in them—it says here around 52%. And let me tell ya, wrinkles too; I’m seeing smoother skin with a solid reduction they claim is near 29%. No lie!
It’s packed with vitamin C goodness at such high concentration—it feels luxe without being overly heavy. Definitely won’t be going back to any basic masks anytime soon! Can’t wait to keep using it long-term and see where it takes me.