A quiet night
15–20min
The sheet stays wet, still full of essence.
- Hydration, calm, and the cool-on-contact feel
- For an ordinary evening, or skin that's dry and easily annoyed
D-1 Bio-Cellulose Mask
The night-before mask for the day that matters.
- Lifts surface oil and dead skin as it dries
- Grips every curve without sliding
- Holds roughly 50× its own weight in essence
- Cools the skin surface by about 5°C (sheet lab test)
Box 14 sheets
$50
$12.50 / sheet · trial pack
Box 210 sheets
Recommended
$8036% less per sheet
$8 / sheet✦ +2 sheets free
Bundle ×220 sheets
$15040% less per sheet
$7.50 / sheet✦ +4 sheets free
Bundle ×330 sheets
Best value
$19548% less per sheet
$6.50 / sheet✦ +6 sheets free
Shipping begins the day we launch — September 18, 2026.
Savings compared to buying the same number of sheets at the Box 1 price of $12.50 each. Bonus sheets are a separate pre-order offer.
Why DAYBFOR
Most skincare asks for consistency. Every night, forever, and maybe in a few months you'll see something.
DAYBFOR asks for one night.
We built this for people who don't have a ten-step routine and aren't going to start one — but who still have a day coming up that matters. A wedding. An interview. A flight. A face you'll see again.
You don't need to have been doing this for years. You just need tonight.
What is Bio-cellulose
Most sheet masks are fabric. Cotton pulp, woven into cloth, then soaked in essence. The essence sits on top and evaporates while you wear it.
Bio-cellulose isn't woven. It's grown.
Coconut water is fermented, and the microbes in it spin out cellulose fibers — about 20 to 100 nanometers wide, roughly a thousandth the width of a cotton fiber. They grow into one continuous web, not separate threads laid across each other.
That's why it behaves differently. The web has enough surface area to hold around 50 times its own weight in essence. It follows the curve of your face instead of bridging across it. And as water leaves the web, it contracts — which is when it lifts what was sitting on your skin.
It costs several times more than cotton or gel. We use it because D-1 only gets one night.
Ingredients
14 active ingredients, grouped into five things the formula is built around.
Pore & SebumLHA · Tea Tree Extract · Tannin Complex HR · Anti-Pore S
ToneNiacinamide · Glutathione
Hydration8-Type Hyaluronic Acid Complex · Beta-Glucan · Glycerin
CalmingPanthenol · Centella Asiatica Extract · AC-MUCILLA™
FirmnessAdenosine · DERMASOME PP
Sheet: bio-cellulose, fermented from coconut water. Pectin-based, no gelatin.Vegan-certified sheet · No parabens · No synthetic dyes
Science & Certifications
Patented process — bio-cellulose sheet produced by our sheet manufacturer under its patented method (KR 10-1385501, registered 2014).
Vegan certified — sheet material certified by the Korea Agency of Vegan Certification (L 039-001).
Biodegradable — 93.7% vs. standard cellulose. FITI Testing & Research Institute, KS M ISO 14855-1, 45-day industrial compost test.
Sheet performance — holds roughly 50× its own weight in essence, and lowers skin surface temperature by about 5°C (KATRI sheet material tests).
All figures above refer to laboratory testing of the sheet material, not clinical results for the finished product.
How to Use
1
Wash and applyPat your face dry, then unfold the sheet and press it on.
2
Wait 40–60 minutesIt won't slide off. Lie down, or don't — do whatever you were doing.
3
Peel it off and go to bedDon't rinse. Press the leftover essence in and sleep.
+
OptionalRinse the used sheet under warm water and look at it. What it lifted off the surface stays on the sheet.
Two ways to use one sheet — see The Timer below.
What to Expect
A single-use sheet, saturated and heavy — closer to a treatment than a routine step.
It goes on cold and stays cool. It grips every curve without sliding. As the water leaves the sheet, it tightens — and that's when it lifts surface oil and dead skin. Peel it off, and if you rinse the sheet you can see what came with it.
Then you sleep on it. That's the whole thing.
Cosmetic product. Not intended to diagnose, treat, cure, or prevent any disease.
All figures refer to laboratory testing of the sheet material, not clinical results for the finished product.
D-1 Bio-Cellulose Mask
The night-before mask for the day that matters.
- Lifts surface oil and dead skin as it dries
- Grips every curve without sliding
- Holds roughly 50× its own weight in essence
- Cools the skin surface by about 5°C (sheet lab test)
Box 14 sheets
$50
$12.50 / sheet · trial pack
Box 210 sheets
Recommended
$8036% less per sheet
$8 / sheet✦ +2 sheets free
Bundle ×220 sheets
$15040% less per sheet
$7.50 / sheet✦ +4 sheets free
Bundle ×330 sheets
Best value
$19548% less per sheet
$6.50 / sheet✦ +6 sheets free
Shipping begins the day we launch — September 18, 2026.
Savings compared to buying the same number of sheets at the Box 1 price of $12.50 each. Bonus sheets are a separate pre-order offer.
Why DAYBFOR
Most skincare asks for consistency. Every night, forever, and maybe in a few months you'll see something.
DAYBFOR asks for one night.
We built this for people who don't have a ten-step routine and aren't going to start one — but who still have a day coming up that matters. A wedding. An interview. A flight. A face you'll see again.
You don't need to have been doing this for years. You just need tonight.
What is Bio-cellulose
Most sheet masks are fabric. Cotton pulp, woven into cloth, then soaked in essence. The essence sits on top and evaporates while you wear it.
Bio-cellulose isn't woven. It's grown.
Coconut water is fermented, and the microbes in it spin out cellulose fibers — about 20 to 100 nanometers wide, roughly a thousandth the width of a cotton fiber. They grow into one continuous web, not separate threads laid across each other.
That's why it behaves differently. The web has enough surface area to hold around 50 times its own weight in essence. It follows the curve of your face instead of bridging across it. And as water leaves the web, it contracts — which is when it lifts what was sitting on your skin.
It costs several times more than cotton or gel. We use it because D-1 only gets one night.
Ingredients
14 active ingredients, grouped into five things the formula is built around.
Pore & SebumLHA · Tea Tree Extract · Tannin Complex HR · Anti-Pore S
ToneNiacinamide · Glutathione
Hydration8-Type Hyaluronic Acid Complex · Beta-Glucan · Glycerin
CalmingPanthenol · Centella Asiatica Extract · AC-MUCILLA™
FirmnessAdenosine · DERMASOME PP
Sheet: bio-cellulose, fermented from coconut water. Pectin-based, no gelatin.Vegan-certified sheet · No parabens · No synthetic dyes
Science & Certifications
Patented process — bio-cellulose sheet produced by our sheet manufacturer under its patented method (KR 10-1385501, registered 2014).
Vegan certified — sheet material certified by the Korea Agency of Vegan Certification (L 039-001).
Biodegradable — 93.7% vs. standard cellulose. FITI Testing & Research Institute, KS M ISO 14855-1, 45-day industrial compost test.
Sheet performance — holds roughly 50× its own weight in essence, and lowers skin surface temperature by about 5°C (KATRI sheet material tests).
All figures above refer to laboratory testing of the sheet material, not clinical results for the finished product.
How to Use
1
Wash and applyPat your face dry, then unfold the sheet and press it on.
2
Wait 40–60 minutesIt won't slide off. Lie down, or don't — do whatever you were doing.
3
Peel it off and go to bedDon't rinse. Press the leftover essence in and sleep.
+
OptionalRinse the used sheet under warm water and look at it. What it lifted off the surface stays on the sheet.
Two ways to use one sheet — see The Timer below.
What to Expect
A single-use sheet, saturated and heavy — closer to a treatment than a routine step.
It goes on cold and stays cool. It grips every curve without sliding. As the water leaves the sheet, it tightens — and that's when it lifts surface oil and dead skin. Peel it off, and if you rinse the sheet you can see what came with it.
Then you sleep on it. That's the whole thing.
Cosmetic product. Not intended to diagnose, treat, cure, or prevent any disease.
All figures refer to laboratory testing of the sheet material, not clinical results for the finished product.
The timer
How long
you leave it on
is the setting
One sheet, one formula. Bio-cellulose changes state as it dries, so the clock is the only thing you adjust.
Why the clock
In KATRI's sheet material test the bio-cellulose was still holding its form at 30 minutes, the end of the test window — the point where it has only just begun to dry down. Everything after that is the sheet contracting.
The night before
40–60min
The sheet dries down, contracts, and grips.
- Everything above, plus the sheet lifts surface oil and dead skin as it tightens
- Dip the used sheet in water and you can see what it lifted off the surface
Two ways to use one sheet — not two strengths. Longer doesn't multiply anything, and we don't recommend wearing it overnight. KATRI figures are lab tests on the sheet material under accelerated conditions over a 30-minute window, not tests of results on skin.
We didn't make a routine.
We made the night before.
01
For the night that matters
First date. Job interview. Wedding. Shoot. A 6am flight. You don't need a 12-step routine. You need one night, done right.
02
Wear it and forget it
It grips like a second skin — so you can stretch, scroll, fold laundry, or finish that email while it works. No slipping, no re-adjusting.
03
Peel, and go to bed
Take it off, press in what's left, lights out. Nothing to rinse off, no follow-up steps.
We didn't make a routine. We made the night before.
01
For the night that matters
First date. Job interview. Wedding. Shoot. A 6am flight. You don't need a 12-step routine. You need one night, done right.
02
Wear it and forget it
It grips like a second skin — so you can stretch, scroll, fold laundry, or finish that email while it works. No slipping, no re-adjusting.
03
Peel, and go to bed
Take it off, press in what's left, lights out. Nothing to rinse off, no follow-up steps.
50× Essence held
−5°C Cooling feel
1/1,000 Second-skin fit
1 Night
Figures are KATRI tests on the bio-cellulose sheet material. "50×" refers to the sheet's own weight, not to other sheets. "1/1,000" compares fiber width to standard pulp fiber. Not clinical results for the finished product.
Tested. Certified. Documented.
We're a one-product brand, so there's nowhere to hide.
Every batch is screened before it's filled. None of it makes the mask magic — it just means you know exactly what you're putting on your face.
01
Patented process
Manufacturer's patent · KR 10-1385501
02
Vegan-certified sheet
Sheet material · KAVC L 039-001
03
93.7% vs. cellulose
Industrial compost · FITI, 45 days
04
Safety screened
KTR · microbes, preservatives, heavy metals
Cosmetic product. Not intended to diagnose, treat, cure, or prevent any disease. Certifications and test figures refer to the bio-cellulose sheet material, not to the finished mask.
Tested. Certified. Documented.
We're a one-product brand, so there's nowhere to hide.
Every batch is screened before it's filled. None of it makes the mask magic — it just means you know exactly what you're putting on your face.
01
Patented process
Manufacturer's patent · KR 10-1385501
02
Vegan-certified sheet
Sheet material · KAVC L 039-001
03
93.7% vs. cellulose
Industrial compost · FITI, 45 days
04
Safety screened
KTR · microbes, preservatives, heavy metals
Cosmetic product. Not intended to diagnose, treat, cure, or prevent any disease. Certifications and test figures refer to the bio-cellulose sheet material, not to the finished mask.
Three generations
of sheet mask.
Sheet masks have been through three material generations. Here's what changes between them, measured side by side.
1st gen
Cotton Sheet
2nd gen
Gel (Collagen) Sheet
DAYBFOR
3rd gen
Bio-Cellulose
Material
Non-woven pulp / cotton
Gellan gum · carrageenan
Fermented coconut water
Fiber width
20,000–50,000 nm
No fiber structure
20–100 nm
Structure
Woven fibers with gaps
A solid gel film
Grown as one connected web
Fit
Lifts at the curves, slides
Sits close, but releases little
Follows every curve
Essence held
Holds it on the surface
Not applicable
About 50× its own weight
Stays saturated
Dries out as you wear it
Dissolves as worn
Still holding at 30 min
Cooling
Little to none
Mild
About −5°C
As it dries
Just dries out
Dissolves
Tightens and lifts surface oil as it contracts
Cost to produce
Low
Medium
High
A cotton sheet is fabric with essence on it. A gel mask sits close but has little to release. Bio-cellulose is grown, not woven — fermented from coconut water into a continuous nano-fiber web. It holds about 50 times its own weight in essence, and it's the only one of the three that does something as it dries: it tightens, and takes what was sitting on the surface with it.
It costs several times more to produce. We use it because D-1 only gets one night to work.
Sheet material tests by KATRI (Korea Apparel Testing & Research Institute). "50× its own weight" refers to the sheet's own weight, not to other sheets. Saturation timing measured under 60°C accelerated conditions, which differ from normal use. Rows without a figure describe general material characteristics, not head-to-head testing. Results describe the sheet material and are not clinical results for the finished product. Comparison is between sheet material types, not specific commercial products.
Three generations of sheet mask.
Sheet masks have been through three material generations. Here's what changes between them, measured side by side.
Material
Fiber
Structure
Fit
Essence
Saturation
Cooling
Drying
Cost
Material
1st genNon-woven pulp / cotton
2nd genGellan gum · carrageenan
DAYBFORFermented coconut water
A cotton sheet is fabric with essence on it. A gel mask sits close but has little to release. Bio-cellulose is grown, not woven — fermented from coconut water into a continuous nano-fiber web. It holds about 50 times its own weight in essence, and it's the only one of the three that does something as it dries: it tightens, and takes what was sitting on the surface with it.
It costs several times more to produce. We use it because D-1 only gets one night to work.
Sheet material tests by KATRI (Korea Apparel Testing & Research Institute). "50× its own weight" refers to the sheet's own weight, not to other sheets. Saturation timing measured under 60°C accelerated conditions, which differ from normal use. Rows without a figure describe general material characteristics, not head-to-head testing. Results describe the sheet material and are not clinical results for the finished product. Comparison is between sheet material types, not specific commercial products.
Pre-order
Two free sheets
Two free sheets
for every ten.
Order before we ship and every ten sheets comes with two more, free. Nothing to enter — it's added at checkout.
Choose your pack→
Ships September 18, 2026. Free shipping on every order.
Box 1
4
sheets
no bonus sheets
Box 2
10 +2
sheets
✦ 2 free
Bundle ×2
20 +4
sheets
✦ 4 free
Bundle ×3
30 +6
sheets
✦ 6 free
Pre-order
Two free sheets for every ten.
Order before we ship and every ten sheets comes with two more, free. Nothing to enter — it's added at checkout.
Box 14 sheets—
Box 210 sheets+2 free
Bundle ×220 sheets+4 free
Bundle ×330 sheets+6 free
Choose your pack→
Ships September 18, 2026. Free shipping on every order.