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Ultimate Nourishing Rice Overnight Spa Mask

Dry SkinOvernight Mask

Ultimate Nourishing Rice Overnight Spa Mask — Reddit Reviews

by COSRX

90nextscore34 verdicts

Updated October 14, 2026

Rice extract and niacinamide seal in overnight moisture; morning brightness is real, temporary.

What the community says

Backed by 57 studies

This is really a rich leave-on moisturizer, not a traditional mask, with rice extract, niacinamide, oils, and humectants. Redditors reach for it when dry or retinoid-treated skin needs overnight sealing; breakout-prone users report congestion and flare-ups.

From Reddit

Backed by 29 threads from r/AsianBeauty, r/koreanskincare and 2 more.

Read the threads ↓

What people love

  • Visible morning brightening, even if temporary
  • Seals in hydration without a sticky pillowcase finish
  • Fragrance-free moisturizer that doubles as a sleeping pack

Watch out for

  • Breakouts and flare-ups happen for some users
  • Can leave skin red, oily, and unabsorbed
  • Sticky finish can be a dealbreaker for some

Product details

Where to buy

What the science says

  • Acne

    Some evidence

    Niacinamide: 6 studies tested it on its own. See all 17 studies

    What the studies found
    • Most studies found niacinamide helped acne
    • It often cleared acne about as well as clindamycin when put on the skin
    • Some studies found it helped reduce red, sore spots and pimples
    • Some evidence is still uncertain because some studies found no clear difference
  • Hyperpigmentation

    Some evidence

    Niacinamide: 5 studies tested it on its own. See all 20 studies

    What the studies found
    • All 5 studies that tested it on its own found it helped fade dark spots
    • On its own, it reduced facial darkening and made skin look lighter than a placebo
    • It also improved dark spots linked with sun damage in one clinical trial
  • Anti-Aging

    Some evidence

    Niacinamide: 3 studies tested it on its own. See all 9 studies

    What the studies found
    • Another study found it helped skin hold more water and lowered water loss through the skin
  • Skin Barrier

    Not proven yet

    Few or mixed studies. This claim isn't established.

    Niacinamide: 1 study tested it on its own. See all 17 studies

    What the studies found
    • The one study that tested it on its own found it helped the skin barrier
    • It lowered water loss through the skin
    • It increased the thickness of the outer skin layer

Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.

Real Reddit threads — 42 mentions across 29 threads

COSRX Ultimate Nourishing Rice Overnight Spa Mask on Reddit, in one place — 29 threads from r/AsianBeauty, r/koreanskincare and 2 more, summarized.

“along side 2 Cosrx sleeping masks that I don’t love as much”

Mentioned

“2 Cosrx sleeping masks that I don’t love as much”

Mentioned

“Cosrx sleeping masks”

Mentioned

“Now when I need a little extra moisture I use the ultimate nourishing overnight rice mask from Cosrx.”

Positive

“focused on moisture/hydration instead until healed”

Positive

“when I need a little extra moisture”

Positive

“Cosrx ultimate nourishing rice overnight spa mask”

Positive

“plus either the Purito 5 ceramide moisturizer or Cosrx ultimate nourishing rice overnight spa mask.”

Positive

“Night time I use ...”

Positive

“moisturisers my skin love include the cosrx ultimate nourishing rice overnight spa mask and the illyoon ato cream!”

Mentioned

“same for me! It broke me out :( but I ended up using the rest as a hand cream for which it is PERFECT. for context, moisturisers my skin love include the cosrx ultimate nourishing rice overnight spa mask”

Mentioned

“Cosrx rice overnight mask i just cannot replace it. Its so good.”

Positive

“Cosrx has a moisturizer/ overnight mask with rice in it, may be a bit cheaper.”

Mentioned

“Cosrx has a moisturizer/ overnight mask with rice in it”

Mentioned

“may be a bit cheaper”

Mentioned

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