Piboo
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Hanyul Yuja Vitamin Sleeping Mask

Ingredients and claims, checked

Product photo of Hanyul Yuja Vitamin Sleeping Mask

Last checked September 9, 2026

Mid-range for sleeping packs

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What is it like at a glance?

What the ingredients do

Hydration leads, with 5 of 51 ingredients. It also contains Jojoba Esters.

Hydration
5
Softening
2
Tightening
2
Exfoliation
1

By skin type

  • DryGood fit
  • OilyNeutral
  • CombinationGood fit
  • SensitiveUse with care

Piboo’s rating from user reports.

Worth knowing

  • Has fragrance allergens
  • Contains essential oil
  • Contains drying alcohol
  • Has a fungal-acne trigger

Made for

What is this product?

What to expect
This sleeping pack is made for a brighter skin tone and better hydration.
Key ingredients
Citrus Junos Fruit Water 2.2%, Citrus Junos Peel Oil 0.45%, Citrus Junos Seed Oil 0.25%
When
Evening

Who is it for?

Good for

  • Dull, uneven skin tone
  • Dehydrated normal skin

Less suited to

  • People avoiding fragrance allergens
  • Skin that reacts to alcohol
  • Skin that reacts to vitamin C

What's good, and what to watch for?

Good points

  • Contains Citrus Junos Fruit Water 2.2%, Citrus Junos Peel Oil 0.45%

Watch-outs

  • Contains essential oil (Citrus Junos Peel Oil, Cymbopogon Martini Oil)
  • Has fragrance allergens (Limonene, Geraniol)
  • Contains drying alcohol (Alcohol Denat.)
  • If you get fungal acne: Helianthus Annuus (Sunflower) Seed Oil, Sorbitan Isostearate

How do you use it?

Pairs well with
  • A moisturiser or cream applied underneath, before the mask
  • A niacinamide-free routine earlier in the evening if tone is the goal
Don't combine with
A leave-on exfoliating acid in the same evening

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, except 4 with no dictionary entry, left in Korean.

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:
a brighter skin tone · better hydration · a smoother skin texture · less visible dark spots
See each claim, checked (11)

Claims, checked

  • Human application test results: [Subjects] 30 adult men and women aged 20-39 with insufficient sleep (habitually sleeping less than 6 hours), [Period] 2022.05.02 ~ 2022.06.10, [Test institution] P&K Skin Clinical Research Center Co., Ltd.backed by evidence
  • Tone·Texture·Glow! A sleep pack with 6 whole yuzus that uses the brightening effect of vitamin P from yuzu to help recover skin fatigue and leave you with the radiant morning skin that comes from a good night's sleep.partly backed
  • Sleep pack with plenty of whole yuzu* 6 pieces** / *Whole yuzu: uses yuzu peel, yuzu flesh, and yuzu seeds all as raw materials, **Based on yuzu peel oil content: yuzu peel oil 1kg = 22,500 yuzu fruitspartly backed
  • Step.01 Skin tone / Compared to before use, surface melanin decreased by 22% after 4 weeks of use / Step.02 Skin texture / Compared to before use, keratin amount decreased by 55% immediately after use / Step.03 Skin glow / Moisture immediately after use: +404% increase compared to before use immediately after use, moisture after 8 hours: +56% increase compared to before use after 8 hours of usepartly backed
  • Moisture +526%, 8-hour moisture persistence +93.2%, gloss +2.6% / when used in combination with Hanyul creampartly backed
  • Low-irritation test completed emblem, 10FREE emblem, wrinkle improvement and whitening functional emblem / Sensitive skin panel test completed emblem / Dermatology test completed emblem, allergy test completed, acne-prone skin suitability test completedpartly backed
  • The vitamin C ingredient contained in the Moonlight Yuja Sleep Pack is a stabilized vitamin derivative, so 'it is safe to use without sunscreen'.overstated
  • October ~ November, Goheung, Jeollanam-do, 100% domestically grown Goheung yuzu / 100% domestically grown, Goheung yuzu packed with 25 times more vitamin C than apples!overstated
  • Vegan-certified 10 Free with unnecessary ingredients excludedno supporting source found
  • Beauty Awards proven product power, 31 award wins* sleep pack *31 award wins: 5 in 18, 13 in 19, 6 in 20, 4 in 21, 3 in 22 | includes pre-renewal productsno supporting source found
  • Skin fatigue relief & vitality charging effect felt the next day after use │ Research agency: Icon Co., Ltd. │ Subjects: 30 Korean women aged 25-39 │ Period: 2018.05.19~05.26no 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

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