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Ultimate Nourishing Rice Overnight Spa Mask

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Ultimate Nourishing Rice Overnight Spa Mask — Reddit Reviews

by COSRX

90nextscore35 verdicts

Updated October 15, 2026

Rice-extract sleeping cream visibly brightens by morning; sticky for some.

What the community says

Backed by 53 studies

This rice-extract sleeping cream doubles as a moisturizer, layering over evening products to seal in hydration. Redditors reach for it on dry, dehydrated, retinoid-stressed skin, though oily or breakout-prone users report redness, greasiness, and flare-ups.

From Reddit

Backed by 28 threads from r/AsianBeauty, r/koreanskincare and 2 more.

Read the threads ↓

What people love

  • Visible morning brightening, even if temporary
  • Works as moisturizer, not just a mask
  • Fragrance-free, lightweight hydration

Watch out for

  • Breaks some users out or triggers flare-ups
  • Can sit greasy and cause redness instead of absorbing

Product details

What the science says

  • Acne

    Some evidence

    Niacinamide: 6 studies tested it directly. See all 17 studies

    What the studies found
    • Most studies found niacinamide helped acne
    • It often worked about as well as clindamycin when put on the skin
    • Some studies found it reduced red, sore spots and other pimples
    • Some research found the results were uncertain or showed no clear difference
  • Hyperpigmentation

    Some evidence

    Niacinamide: 4 studies tested it directly. See all 17 studies

    What the studies found
    • All 4 studies that tested it directly found it helped fade dark spots or patches
    • It reduced facial dark spots better than a moisturizer without niacinamide
    • Women with chloasma saw darker patches improve more when nicotinamide was added to salicylic acid
    • Studies also found facial skin looked lighter as dark spots faded
  • Anti-Aging

    Some evidence

    Niacinamide: 2 studies tested it directly. See all 8 studies

    What the studies found
    • Both studies that tested it directly found it helped with signs of aging
    • It improved how firm and elastic the skin looked
    • It reduced wrinkles, uneven tone, redness, and yellowing
    • 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 directly. See all 17 studies

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

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

Real Reddit threads — 42 mentions across 28 threads

COSRX Ultimate Nourishing Rice Overnight Spa Mask on Reddit, in one place — 28 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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