
Ultimate Nourishing Rice Overnight Spa Mask — Reddit Reviews
by COSRX
Updated October 14, 2026
Rice extract and niacinamide seal in overnight moisture; morning brightness is real, temporary.
What the community says
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.
What this means for you
What people love
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
Skin Type
Product Traits
Key Ingredients
What the science says
Acne
Some evidence
Niacinamide: 6 studies tested it on its own. See all 17 studies
Hyperpigmentation
Some evidence
Niacinamide: 5 studies tested it on its own. See all 20 studies
Anti-Aging
Some evidence
Niacinamide: 3 studies tested it on its own. See all 9 studies
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
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





