Piboo
My shelf

COSRX Ultimate Nourishing Rice Overnight Spa Mask

Ingredients and claims, checked

Product photo of COSRX Ultimate Nourishing Rice Overnight Spa Mask

Last checked September 16, 2026

Buy on Olive Young US
Mid-range for sleeping packs
Other stores (1)

We don't earn anything from these links. If that ever changes, we'll label the link.

What is it like at a glance?

What the ingredients do

Moisture seal leads, with 6 of 24 ingredients.

Moisture seal
6
Skin protection
3
Hydration
2

By skin type

  • SensitiveGood fit

Piboo’s rating from user reports.

Worth knowing

  • Has a fungal-acne trigger
  • On pore-clogging lists

Made for

What is this product?

What to expect
It's made for calmer, clearer-looking skin.
Key ingredients
Niacinamide 2%, Oryza Sativa (Rice) Extract 0.72%
When
Evening

A sleeping pack made with rice extract. It spreads easily with a bouncy feel and leaves skin dewy. It comes in a 60 ml size.

What's good, and what to watch for?

Good points

  • Contains Niacinamide 2%, Oryza Sativa (Rice) Extract 0.72%

Watch-outs

  • If you clog easily: Elaeis Guineensis (Palm) Kernel Oil, Elaeis Guineensis (Palm) Oil
  • If you get fungal acne: Helianthus Annuus (Sunflower) Seed Oil, Cetearyl Olivate

What is in it?

The full ingredient list as the brand publishes it, in the printed order. Tap a name to read about that ingredient.

This brand publishes its ingredient list in Korean only. Names below are the matching INCI names from the Korean Cosmetic Association ingredient dictionary.

Key ingredientWorth a closer look

Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.

What the claims add up to

Only partly backed:
calmer skin · clearer-looking skin
Don't count on:
better hydration · a brighter skin tone
See each claim, checked (3)

Claims, checked

  • Niacinamide 2% - Soothes and heals various skin troublesplausible, not tested
  • Enriched with more than 68.9% of Rice Extract, this mask provides intensive nourishment with deep moisture and brightening.no supporting source found
  • Rice extract - moist and gentle care for sensitized skinno supporting source found

We quote each claim exactly as the brand published it, then check it against the ingredient list and the brand's own documents.

How we check claims