Biodance
Hydro Cera-Nol Real Deep Mask
A sheet mask from Biodance's Korean-market lineup, Hydro Cera-Nol Real Deep Mask leads with Niacinamide and is sized for real, repeat use.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- Dry skinCompromised barrierDehydrated skinSensitive skin
- Helps with
- Shoppers looking for Niacinamide in a sheet maskRoutines that want Niacinamide and Adenosine in one stepFilling the sheet mask step with a Korean-market formulaAnyone who wants the Niacinamide sheet mask sold on Korean shelves
Sold out.
Tell us where to send it
One email, the moment this exact unit is back in stock. Not a newsletter and not a sequence, and your address comes off the list the second it is sent.
- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
The Hydro Cera-Nol Real Deep Mask is a 34g sheet mask, used after toner, in place of your serum step, in the evening. The active it is built around is Niacinamide, named fifth on its own ingredient list. The same list carries Adenosine, Allantoin and Dipotassium Glycyrrhizate, so the active is not the only thing on it worth naming. How much of the Niacinamide stays on the skin, and for how long, is decided by the sheet mask format rather than by the list alone. This is the Original Korean Formula, the sheet mask Biodance sells in Korea, Niacinamide and all.
Key benefits
- Niacinamide, the active this sheet mask is built around
- Adenosine, Allantoin and Dipotassium Glycyrrhizate on the same list, actives
- Tocopherol on the same list, an antioxidant
- Ceramide NP and Ceramide NS further down the same list
- Cholesterol and Phytosphingosine further down the same list
- Niacinamide named fifth on the manufacturer list printed on this page
Key actives
Niacinamideactive
Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. On this sheet mask's own ingredient list it is named fifth.
Adenosineactive
Adenosine is a nucleoside that Korea's own cosmetic authority recognises as a wrinkle-care functional ingredient, which is why it appears on so many Korean lists at a low level. It is used for the look of fine lines and is stable and well tolerated. It is named thirtieth on this sheet mask's list, alongside Niacinamide.
Allantoinactive
Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin. The panel names it thirty-sixth on this sheet mask's list, beside Niacinamide.
Dipotassium Glycyrrhizateactive
Dipotassium Glycyrrhizate is a water-soluble salt derived from licorice root. It is named forty-sixth on this sheet mask's list, alongside Niacinamide.
Tocopherolantioxidant
Tocopherol is vitamin E. It is an oil-soluble antioxidant that protects the oils in a formula from going rancid and works on skin as an emollient, and it is regularly paired with vitamin C because each keeps the other going for longer. It is named fifty-fourth on this sheet mask's list, alongside Niacinamide.
Biodance Hydro Cera-Nol Real Deep Mask
Where does this sheet mask go in my routine?
After toner, in place of your serum step, in the evening. Toner goes on before it, and the rest of the routine goes on after you take the sheet mask off. If you are adding it to a routine you already like, give it a week on its own first, so what you see is the Niacinamide and not three changes at once.
Is this the Korean-market sheet mask or a US version?
The Korean-market one, Niacinamide and all. We match this sheet mask to its Korean barcode before it reaches the shelf, which is the check that tells you which market release you are holding.
What else is on the list besides Niacinamide?
Adenosine, Allantoin and Dipotassium Glycyrrhizate. The order they are printed in on this sheet mask's panel is the order on the box, so you can see where Niacinamide sits relative to them. Further down the same panel: Tocopherol, Ceramide NP and Ceramide NS.
- Ships from
- California
Duties are prepaid. Nothing is owed at delivery. Returns are accepted for 30 days, by mail.
Orders ship from our California warehouse, dispatched within 2 business days, and arrive in 3 to 5 days. Shipping is free on orders of $100 or more.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Customs
Duty paid by us before it enters the US - 3California
Ships domestically, no international leg
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Import duties are paid by us before the parcel reaches you, so nothing is owed at the door, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
Payment and security
We accept
How to use
- Use the Hydro Cera-Nol Real Deep Mask in the evening, after cleansing, in place of your toner and serum layers.
- Peel the sheet off its backing, lay it on from the centre outward, and smooth it down along the jaw so no edge tents away.
- Wear it for the time printed on the pack, lift it off, then pat in what it left behind rather than rinsing.
- Two or three evenings a week is a normal rhythm. Do not reuse a sheet, and do not leave it on until it has gone dry.
Worth knowing
- Patch test this sheet mask on a small area and wait a day before using it more widely, especially with Niacinamide on the list.
- Introduce this sheet mask on its own for the first week, so anything your skin does is traceable to the Niacinamide rather than to three changes at once.
Reviews
No reviews yet. Tell us how much you love the product!
Write Reviews (opens in a new tab)We’re on gram!
Creators trying on authentic Korean skincare routines and products from us.
Rating a shelf of Dr. Althea products one by one.
Jasmine Loo · YouTube
Two hydrating serums side by side, IUNIK and Dr. Althea.
Kristin · YouTube
A walk through the Dr. Althea serum lineup and who each one suits.
auraofmahmuda · YouTube
A blunt first take on the Dr. Althea range.
Lexi Chang · YouTube
A first look at the viral 345 Relief Cream before buying.
Shelley Nayak · YouTube
A first try of the Dr. Althea serum on camera.
Hannah Ziad · YouTube
Biodance, Korean-market original
Biodance Hydro Cera-Nol Real Deep Mask: a sheet mask built around Niacinamide, sourced as the authentic Korean-market formula and.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.
Allantoin can tone down the dryness of the individual cells. It increases the water content of the skin, which means it helps to hydrate and moisturize.
Wilma Bergfeld, MDDermatologist, Cleveland Clinic It contains liquiritin, an active compound that helps to disperse and remove existing melanin in the skin.
Jennifer Chwalek, MDDermatologist, Byrdie
1 more professional perspective
Niacinamide helps reduce the appearance of pores in a few ways. By strengthening the skin barrier and improving elasticity, pores appear less noticeable and more even.
Ashlyn YankeAesthetician, Cleveland Clinic
Ask an AI assistant about this product
Ask an AI assistant about this product
Opens ChatGPT, Perplexity or Claude in a new tab with the question prefilled. Claude asks you to sign in first.









