How long should you leave a Korean sheet mask on your face?

How long to leave them on, how many masks to use per week, expiration dates, and what to do with collagen masks: the practical guide to enjoying Korean masks without damaging your skin.

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Femme portant le masque Biodance Bio-Collagen blanc opaque sur tout le visage

A Korean sheet mask is generally kept on for 15 to 20 minutes, unless the packaging indicates a different time. Always remove it before it dries: a dry sheet does nothing for your skin. Night masks and certain collagen masks follow a different logic, with a longer application time specified by the brand.

Want to choose your format before getting started? Our entire selection of Korean face masks is gathered in one place. In this guide, we review the application time, the number of masks per week, storage, and the special case of the collagen mask.

 

How long to keep a face mask depending on its format

 

The question of application time does not have a single answer. It all depends on the type of mask you have in your hands.

  • Sheet mask: 15 to 20 minutes as a general rule. This is the most common format in K-Beauty.
  • Purifying mask or rinse-off cream mask: the time indicated on the packaging, no more, no less.
  • Night mask: it is applied as the last step in the evening and stays in place during your sleep.
  • Collagen mask: its application time varies depending on the format, we will come back to it just after.

Why keeping it longer does nothing

This is the most widespread misconception: the longer the mask stays, the more it works. In reality, a sheet mask gives its best as long as it is soaked. Once it starts to dry, it no longer provides hydration and can even leave a feeling of tightness.

“Keeping your mask longer does not make it more effective, consistency is what matters.” Cédric, co-founder.

The signs that it is time to remove your mask

  • The fabric peels off or shrinks at the edges.
  • It becomes firmer to the touch.
  • Your skin starts to feel tight under the mask.
  • The time indicated on the pouch has passed, even if the fabric is still damp.

 

Collagen mask: how long to keep it?

 

The collagen mask is a special case. Some are applied like a sheet mask, others are kept for several hours or all night. The only good answer is that of your mask's packaging. If you are hesitating between several references, our guide on the best collagen face mask helps you compare.

Biodance Bio-Collagen Real Deep Mask: the boost before an event

In our online sales over the last 12 months, the Bio-Collagen Real Deep Mask by Biodance ranks first in the entire mask collection. It is suitable for dehydrated, dull, or tired skin that wants a boost of firmness, radiance, and bounce. Follow the application time indicated on its packaging, without exceeding it.

What our customers say about it:

  • “This mask is incredible and my skin was completely smooth after” (Aelia, customer review left on our site)
  • “Little mask that firms the skin and gives a gliding effect, ideal for a night out or an event.” (Anonymous, customer review left on our site)

Medicube Collagen Night Wrapping Mask: the mask you keep on all night

The Collagen Night Wrapping Mask by Medicube is a night mask. You apply it as the last step of your evening routine, sleep with it, then remove it upon waking. It is aimed at skin lacking tone, dehydrated skin, and mature skin looking for radiance without weighing down their routine.

“An incredible mask! Pleasant and refreshing upon application, satisfaction at the time of removal and the result? very soft skin” (Korélia, customer review left on our site)

Want to see the other references? They are grouped in our Korean collagen mask collection.

 

How many face masks per week depending on your skin

 

The frequency depends less on the mask than on what your skin needs. Here are some simple guidelines:

  • Dry or dehydrated skin: 2 to 3 moisturizing masks per week. If your skin tolerates them well and still feels tight, you can add more.
  • Normal skin: 1 to 2 masks per week are enough to maintain comfort and radiance.
  • Combination to oily skin: 1 purifying mask per week, and a light moisturizing mask as a complement if your cheeks feel tight.
  • Sensitive skin: start with one mask per week, always soothing, then increase if everything goes well.

A customer with combination skin, oilier on the nose, forehead, and chin, recently asked us if they should add an exfoliant and a mask to their routine, and at what frequency. Our customer service advised her to integrate them once a week: it is a good complement for the oilier areas, without overloading the skin.

You don't really know which category to put yourself in? Take our free skin diagnosis, it guides you to the right care in a few questions.

 

Which Korean sheet mask to choose: the comparison

 

At our place, the top trio of the collection over the last 12 months of online sales consists of the Biodance mask, then the Airy Fit Sheet Mask Aloe Vera and Cucumber by Missha. To help you choose according to your skin, here is the comparison.

Mask Type For whom When to use
Biodance Bio-Collagen Real Deep Mask Collagen mask Dehydrated, dull, or tired skin Before a night out or an event
Medicube Collagen Night Wrapping Mask Night mask Skin lacking tone, dehydrated, or mature Last step of the evening
Missha Airy Fit Sheet Mask Aloe Vera Sheet mask Skin that needs soothing and hydration When it is hot
Missha Airy Fit Sheet Mask Cucumber Sheet mask Skin prone to redness looking for freshness After a busy day
Missha Airy Fit Sheet Mask Tea Tree Sheet mask Combination to oily skin, acne-prone When the skin is shiny
Missha Airy Fit Sheet Mask Rice Sheet mask Dull complexion lacking radiance When the complexion looks tired
Missha Airy Fit Sheet Mask Green Tea Sheet mask Skin that wants light and soothing hydration In a regular routine
Beauty of Joseon Red Bean Refreshing Pore Mask Purifying mask Combination and oily skin, visible pores Once a week

On the Aloe Vera, a customer summarizes its use well: “Super when it is hot, refreshes well, the mask is very damp” (AGNES, customer review left on our site).

 

Where to place the mask in your routine

 

Six-step numbered diagram for using a sheet mask: cleanse, apply toner, place the mask, remove it before it dries, pat the remaining serum, then finish with cream.

A mask placed at the wrong time loses part of its interest. Here is the order to follow for a sheet mask:

  1. Cleanse your skin to remove makeup, sunscreen, and sebum.
  2. Apply your toner: a slightly damp skin welcomes the mask better.
  3. Place the mask starting from the forehead, then smooth it downwards to push out air bubbles.
  4. Remove it at the end of the indicated time, before it dries.
  5. Pat the remaining serum with the fingertips until it penetrates.
  6. Finish with your cream to keep the hydration provided by the mask.

The excess serum can be surprising. A customer says it frankly: “Great result, cocooning moment. A little too much product that ends up running down the neck (I remove the excess myself)” (Sandra, customer review left on our site). Her tip is simple: remove the excess with your hands and spread it on the neck or the back of your hands.

To properly chain toner, serum, mask, and cream, our article on skin layering details the order of each care.

 

Expiration date of a sheet face mask: how to read it

 

Before opening

A sheet mask comes in an individual pouch. Look for the date printed on the pouch or on its box. In the European Union, a cosmetic that lasts less than 30 months must bear a minimum durability date. Store your pouches away from heat and light, for example in a drawer rather than on the edge of a window.

After opening

An open pouch is used immediately. Do not keep a mask for the next day and never reuse it: the fabric and the serum are not made to be stored once exposed to the air. If there is serum left at the bottom of the pouch, apply it immediately to the neck or décolleté.

The case of jar masks

For a night mask in a jar, look for the little open jar pictogram on the packaging: it indicates how many months the product lasts after opening. Close the lid tightly and take the product with clean and dry fingers.

In all cases, if the smell, the appearance of the serum or that of the fabric has changed, do not use it.

 

The mistakes that ruin the effect of a mask

 

  • Leaving it dry on the face: you lose the hydration and your skin can feel tight.
  • Placing it on poorly cleansed skin: the serum settles on the makeup instead of your skin.
  • Rinsing right after: for a sheet mask, the remaining serum is part of the care.
  • Forgetting the cream afterwards: without it, the hydration evaporates faster.
  • Multiplying purifying masks: once a week is enough, beyond that you risk drying out your skin.
  • Choosing a mask at random: a purifying mask on dry skin, or a rich mask on oily skin, will not bring what you are looking for.

The right reflex: a mask adapted to your skin, the right application time, and consistency. You now have everything in hand to choose from our Korean face masks.

 
Cédric Meyer

About the author

Co-founder of Holy Skin

Passionate about K-Beauty since 2020, I test the Korean products we sell and simplify skincare for those who don't want to read INCI lists.

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FAQ: How long should you leave a Korean sheet mask on your face?

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How long should a sheet mask be left on the face?

A purely hydrating sheet mask can be used often if your skin tolerates it well, especially when it feels tight. Purifying masks, on the other hand, should be limited to once a week so as not to dry out your skin. For a balanced routine, two to three hydrating masks a week are enough. Not sure about your skin type? Take our free skin quiz.

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Can you use a face mask every day?

A purely hydrating sheet mask can be used often if your skin tolerates it well, especially when it feels tight. Purifying masks, on the other hand, should be limited to once a week so as not to dry out your skin. For a balanced routine, two to three hydrating masks a week are enough. Not sure about your skin type? Take our free skin quiz.

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Should you rinse your face after using a sheet mask?

No, generally you don't rinse it off. The serum that remains on the skin is part of the treatment: pat it in with your fingertips until absorbed. If there is too much left, remove the excess with your hands and apply it to your neck. Finish with your moisturizer. Only masks labeled as rinse-off on their packaging should be rinsed with water.

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Can you use an expired face mask?

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Can you sleep with a fabric mask on your face?

No, you don't leave a sheet mask on overnight: it eventually dries out and stops doing anything for you. If you want a treatment that works while you sleep, choose a night mask designed for that, like the Medicube Collagen Night Wrapping Mask, which is applied as the last step in your evening routine and removed upon waking.