Ultimate Nourishing Rice Overnight Spa Mask — Reddit Reviews
by COSRX
Updated September 16, 2026
Niacinamide-rich overnight cream brightens and hydrates dry, dull skin; greasy if overapplied.
What the community says
A niacinamide-enriched overnight cream that tackles dullness and dryness, favored for winter use and sensitive skin. Reddit users say it brightens and calms eczema flare-ups but can feel greasy if you apply too much. Studies show niacinamide supports acne treatment, aligning with some community experiences.
What this means for you
What people love
- Rich hydration that calms eczema and flare-ups rapidly
- Visible brightening effect noticeable by morning
- Niacinamide supports acne control comparable to benzoyl peroxide
Watch out for
Product details
Skin Type
Product Traits
Key Ingredients
Where to buy
What the science says vs. what Reddit says
What the science says
Niacinamide
Some evidence for acne- It often improved acne, but many studies used niacinamide together with other ingredients
- 19 studies back this, including one large review
- Some studies found it worked about as well as clindamycin or benzoyl peroxide
- A few studies found niacinamide beat a placebo or no treatment for red, sore spots and blemishes
- No major side effects were reported in the findings given
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 37 mentions across 28 threads
COSRX Ultimate Nourishing Rice Overnight Spa Mask on Reddit, in one place — 28 threads from r/AsianBeauty, r/koreanskincare and 3 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”
Mentioned
“for context, moisturisers my skin love include the cosrx ultimate nourishing rice overnight spa mask and the illyoon ato cream!”
Mentioned
“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
“Cosrx rice overnight mask i just cannot replace it. Its so good.”
Positive
