Piboo
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ISOI 아크니 닥터 1st 스피디 마스크

Ingredients and claims, checked

Last checked September 14, 2026

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What is it like at a glance?

What the ingredients do

Hydration leads, with 6 of 28 ingredients.

Hydration
6
Tightening
2
Moisture seal
1
Skin protection
1

By skin type

  • DryNot a fit
  • OilyGood fit
  • CombinationUse with care
  • SensitiveUse with care

Piboo’s rating from user reports.

Worth knowing

  • Pregnancy: check first
  • Has fragrance allergens
  • Contains essential oil
  • Contains drying alcohol
  • Has a fungal-acne trigger

Made for

What is this product?

What to expect
It's made for calmer skin.
Key ingredients
Houttuynia Cordata Extract, Leptospermum Petersonii Oil, Centella Asiatica Extract
When
Morning and evening

A sheet mask that you leave on your face. It comes in a 20 ml size.

Who is it for?

Good for

  • Oily, breakout-prone skin

Less suited to

  • Sensitive skin
  • People avoiding fragrance

What's good, and what to watch for?

Good points

  • Houttuynia cordata extract and Centella asiatica extract calm the skin
  • Panthenol adds moisture
  • Salix Alba (Willow) Bark Extract smooths away dead skin

Watch-outs

  • Pregnancy: check first (Salix Alba (Willow) Bark Extract)
  • Contains essential oil (Leptospermum Petersonii Oil, Rosa Damascena Flower Oil)
  • Has fragrance allergens (Citral, Citronellol)
  • Contains drying alcohol

How do you use it?

Where in your routine
Targeted sheet mask for a flare, used occasionally rather than daily
Pairs well with
A bland humectant moisturiser after removal
Don't combine with
  • Leave-on exfoliating acids used the same night
  • Prescription topical retinoids used the same night

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
Tests passed:
dermatologist check · skin irritation
See each claim, checked (8)

Claims, checked

  • Tea tree oil, Houttuynia cordata extract, Sea buckthorn fruit extract, Sophora root extractbacked by evidence
  • ※ Ingredients originally contained in plant-derived essential oils themselves.backed by evidence
  • *The ethanol used by Isoi is a plant fermentation ingredient.plausible, not tested
  • Plant-derived ingredients from both East and West, such as tea tree and heartleaf, help soothe sensitive skin quickly and comfortably and help strengthen the skin's basic resilience.partly backed
  • Sensitive skin irritation test / Korea Dermatology Research Institute / 2021.7.2~7.5 / 31 peoplepartly backed
  • When you want to calm skin concern areas before an important day, when you want to settle sudden skin concerns at an early stage, when you want to gently soothe sensitized skin.no supporting source found
  • We have excluded ingredients that may cause skin irritation and included only plant-derived ingredients that are gentle on the skin.contradicted by sources
  • My skin emergency situationnothing specific to check

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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