That frequency is specific to Laneige Water Sleeping Mask, not a default for every mask sold with a bedtime name. Leaving a facial mask on longer than directed or using it too often can cause irritation. Exfoliating masks need more restraint, particularly for very sensitive skin. Read both the frequency and wear time on the package; an overnight name is not permission to use every formula every night.1

How to use an overnight mask

  1. 1Apply face cream, then spread Laneige Water Sleeping Mask evenly across your face.
  2. 2Leave the mask on overnight, then rinse with water in the morning.
2

Can you use a sleeping mask every night?

Yes, for Laneige Water Sleeping Mask: the US brand page allows daily use. For another product, check its own directions rather than treating the word sleeping as an instruction to use it nightly. Overuse can irritate skin, especially with exfoliating masks or very sensitive skin.12

What should you be careful about?

Test a new mask on a small area of skin first. Check the ingredient list for active ingredients you already use, especially retinol or acids, since doubling up can cause dryness and irritation. Fragrance and essential oils can also irritate skin or trigger allergies. Wash the mask off immediately if you feel itching, burning or stinging, and see a board certified dermatologist if your skin feels worse after use.1

Which ingredients suit your skin?

For facial masks generally, match the ingredients to your concern rather than assuming all sleeping masks work the same way. Hyaluronic acid, ceramides and colloidal oatmeal are options for dry or sensitive skin. For oily or acne prone skin, lightweight moisturizing ingredients such as aloe or hyaluronic acid can pair with exfoliators that target clogged pores. Strong exfoliating ingredients can irritate sensitive skin, so they are a reason to use a mask less often or choose a different formula.1

What should you expect?

Facial masks can moisturize and strengthen the skin barrier, but they do not replace treatment for conditions such as eczema or acne. A mask can add moisture and a temporary glow, but remains an optional side act rather than a hostile takeover of daily care. Laneige reports an instrumental improvement in hydration and radiance after four weeks of nightly use in 31 women for its Water Sleeping Mask; that timing belongs to this product, not every sleeping mask.123

What if you use skin medication?

Some prescription and over the counter medicines can make skin more sensitive or interact with mask ingredients. Check with your dermatologist before adding a mask with active ingredients if your medication has made your skin sensitive.3

Do you use a sleeping mask instead of moisturizer?

No. Laneige directs users to apply Water Sleeping Mask after face cream, and facial masks are an extra step rather than a replacement for a regular routine. Keep your usual moisturizer, cleansing and daytime sunscreen in place. Laneige puts face cream first, which gives its mask the final word but not the whole conversation.123

Should you wash off a sleeping mask in the morning?

For Laneige Water Sleeping Mask, yes: its directions say to leave it on overnight and rinse with water in the morning. Other masks can have different wear times, so follow the label on your product.12

Where this answer comes from

  1. 1Do facial masks work, and should I add one to my skin care routine?aad.org
  2. 2Water Sleeping Mask: Overnight Hydrating Face Maskus.laneige.com
  3. 3Do Face Masks Actually Work or Are They Just a Fad?health.clevelandclinic.org