“My patients want firm, glowing skin without needles. This is the mask I tell them to use at home.” Dr. Yongsuk LeeBoard-Certified Dermatologist
Collagen Glass Skin Mask
One mask. One night. You wake up with skin that looks plump, firm, and glassy. Each mask holds 40 grams of tiny collagen, cut so small it sinks in 3X deeper than normal masks.
Instant Glass Skin
Minimizes Pores
Deep Hydration
Works Overnight
Softens Fine Lines
Gentle & Safe
Collagen Neck MaskFREE
The Glass Skin Ritual: Korean Beauty GuideFREEGuarantee
Customers
Worldwide
See It In Action
Product Details
SUITABLE FOR: Every skin type. Sensitive, dry, tired, or mature. Gentle enough for new moms and breakout-prone skin.
FEELS LIKE: Cool and light, like a second skin. A spa facial you do from your own pillow.
ABSORPTION: The gel slowly turns clear as it melts into your skin. No sticky feel. Nothing left behind.
FREE FROM: No parabens. No sulfates. No alcohol. No fake scent. Nothing harsh. Just clean care for your skin.
How To Use?
1. Prep: Wash your face. Add your toner or serum. This helps the mask sink in deeper.
2. Apply: Peel off both films. Place one piece on your upper face and one on your lower face.
3. Wear: Relax for 1 to 2 hours. Or sleep in it all night, until the gel turns clear.
4. Glow: Peel it off. Pat the extra serum into your skin. Use one mask a week to keep the glow growing.
Ingredients
Low Molecular Marine Collagen: collagen cut extra small so it sinks in deep. It plumps and firms your skin from the inside.
Galactomyces Ferment Filtrate: a Korean beauty secret. It brightens skin, shrinks the look of pores, and balances oil.
Hyaluronic Complex: it pulls water into every layer of your skin and holds it there.
Full list: Aqua, Glycerin, Butylene Glycol, Betaine, Sodium Carrageenan, Glucomannan, 1,2-Hexanediol, Hydroxyethylcellulose, Pentylene Glycol, Dipotassium Glycyrrhizate, Galactomyces Ferment Filtrate, Allantoin, Tocopheryl Acetate, Niacinamide, Hydrolyzed Collagen, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate.
Customer Results
What koji users told us after four weeks:
97% saw firmer, more lifted skin and tighter-looking pores.
94% reported smoother texture and a natural glassy sheen.
90% said their skin looked rested, even after short nights.
100% agreed it felt gentle, with zero irritation.
Shipping & Delivery
Orders are packed within 24 hours (weekends and holidays excluded).
USA: 1-5 business days · UK & EU: 4-9 business days · Canada, Australia & International: 7-14 business days.
A tracking link lands in your inbox the moment your order ships.
Works well with
KTLA 5
As Seen OnKTLA 5
Swear by This Overnight Korean Mask for Younger, Plumper, Glass-Like Skin
Feel Confident & Stop Worrying About:
One Mask Unlocks a Week of Compliments, Confidence & Glow
and plumps
tired-looking skin
and wrinkles
of large pores
and skin bounce
glass-skin glow
Real Stories, Real Results
Watch what women like you have to say about koji
Reasons Why Everyone's Obsessed With This Mask
See results in as little as 2 hours. Skin that looks like you slept all night, even if you did not.
The gel melts into your skin. It carries 40 grams of tiny collagen and peptides down deep, where creams cannot go.
One mask does the work of a counter full of serums. One step. A full reset for tired, dull skin.
Spa-level skin at home, for less than one facial. No needles. No filters. No waiting rooms.
A clean, calming formula. It soothes while it works. Even touchy skin can glow without the sting.
We Don't Just Promise Results. We Prove Them
BEFOREAFTERsaid their skin looked brighter and more radiant right away*
said their skin felt firmer, plumper, and younger*
said they started getting more compliments on their skin*
Everything Your Skin Needs. Nothing It Doesn't.
Skin-loving actives that hydrate deeply, restore bounce, and reveal your natural glass glow overnight.
Skin Elasticity
Low Molecular Collagen
Our star. 40 grams in every mask, cut small enough to sink in deep. It plumps, firms, and lifts.
Glow & Clarity
Galactomyces Ferment
A Korean beauty secret packed with skin food. It brightens dull skin, shrinks pores, and balances oil.
Pore Refining
Niacinamide
Refines the look of large pores, evens tone, and strengthens your skin barrier while you sleep.
Soothe & Hydrate
Allantoin + Hyaluronic
Calms redness and floods every layer of your skin with water. That is where the juicy, bouncy glow comes from.
Four Steps. That's It.
Do it before bed. Wake up glowing.
Wash Your Face
Start clean so the collagen can sink straight in.
Put On the Mask
Lower layer first, then the top. It hugs your face like a second skin.
Sleep On It
Leave it 1–2 hours or overnight. It turns clear as your skin drinks it up.
Wake Up Glowing
Peel it off. Plump, glassy skin — no rinsing needed.
Formulated to Outperform Every Mask on the Market
With 3x more collagen, a sculpted fit, and advanced absorption, koji delivers real results — faster and deeper than ordinary masks.
30-Day Money-Back Guarantee
We did not just make a mask. We made a confidence booster. One that helps you look better in photos, love your mirror again, and get compliments that make your day.
Not feeling it? Send it back. We will refund every cent.
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Here's How We're Different
Frequently Asked Questions
How soon will I see results?
Most women see a change in about 2 hours. Smoother skin. A bright glow. A firmer feel. One mask can keep you glowing for up to 7 days.
Is it safe for sensitive skin?
Yes. It is derm tested. No parabens, sulfates, alcohol, or fake scent. It was made with touchy skin in mind.
How often should I use the mask?
Use it 1 to 2 times a week. The glow builds each time. Big event? Wear it the night before.
What makes this different from other sheet masks?
A lot. 3X more collagen. A two-piece fit that hugs your face. Tiny collagen that sinks in deep. No sticky feel. No tricks.
Can I wear makeup after using it?
Yes. But most women skip it. The mask leaves skin so smooth you may not want any.
Is it cruelty-free?
Yes. No animal testing, ever.
What if it doesn't work for me?
Skin is personal. We get it. If you do not see results, you get every cent back. That is our 30-Day Glass Skin Guarantee.
Customer Reviews
Based on 2,104 reviews
The glow is no joke
I am 71 and my skin drinks this mask up. I woke up looking like I had been on vacation. I would buy the serum by the jar if they sold it.
Best face mask!!!
This mask changed my face. I went from dry, flaky skin to glassy and dewy in one night.
Seriously hydrating
Used it after a long day in the sun and it was heaven. My fine lines have not budged yet, but the hydration alone is worth it. My skin finally got the drink it needed.
Glowing by morning
I slept in it the very first night and woke up glowing. I just wish more came in the box, since I want to use it twice a week!