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KOREAN PHARMACY

isoi Acni Dr. 1st Speedy Mask 20ml x 10ea

isoi Acni Dr. 1st Speedy Mask is a sheet mask whose ingredient list carries Houttuynia Cordata Extract alongside Centella Asiatica Extract and Sophora Flavescens Root Extract.

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$77.50
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Suited to
Oily skinCombination skinBlemish-prone skin
Helps with
Skin that looks congested or blemish-proneFitting a Korean-market step into an existing routineShoppers who want the same formula sold on shelves in Korea

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  • Free US shipping on orders of $100 or more
  • Dispatched within 2 business days

Key benefits

  • Houttuynia Cordata Extract, the plant extract this sheet mask is built around
  • Centella Asiatica Extract, Sophora Flavescens Root Extract, Hippophae Rhamnoides Fruit Extract and Castanea Crenata (Chestnut) Shell Extract on the same list, plant extracts
  • Salix Alba (Willow) Bark Extract and Cinnamomum Cassia Bark Extract further down the same list
  • Origanum Vulgare Leaf Extract and Chamaecyparis Obtusa Leaf Extract further down the same list
  • Houttuynia Cordata Extract named sixth on the manufacturer list printed on this page
  • Sourced for the Korean market, not a US-shelf reformulation of this sheet mask

Key actives

Houttuynia Cordata Extractplant extract

Houttuynia Cordata is heartleaf, and it is one of the two or three anchor plants of Korean calming skincare. Its extract carries quercitrin and other flavonoids and is used for the look of redness and blemish-prone skin. On this sheet mask's own ingredient list it is named sixth.

Centella Asiatica Extractplant extract

Centella Asiatica is the plant behind the whole cica category, sold as gotu kola or Madagascar centella. Its extract is the anchor of Korean formulas built for easily reddened skin, and its work is done by four triterpenes: asiaticoside, madecassoside, asiatic acid and madecassic acid. It is named eighth on this sheet mask's list, alongside Houttuynia Cordata Extract.

Sophora Flavescens Root Extractplant extract

Kushen root extract, a bitter traditional herbal ingredient carrying alkaloids and flavonoids. Korean formulas use it in scalp and blemish-focused products. The panel names it tenth on this sheet mask's list, beside Houttuynia Cordata Extract.

Hippophae Rhamnoides Fruit Extractplant extract

Sea Buckthorn Fruit Extract is high in vitamin C and carotenoids, which give it a strong orange colour. It is used as an antioxidant extract. It is named eleventh on this sheet mask's list, alongside Houttuynia Cordata Extract.

Castanea Crenata (Chestnut) Shell Extractplant extract

Chestnut Shell Extract carries tannins and is used as an antioxidant plant extract, most often in formulas aimed at visible pores. It is named twelfth on this sheet mask's list, alongside Houttuynia Cordata Extract.

How to use

  1. After cleansing and toning, unfold the sheet over dry skin, leave on for 15 to 20 minutes, then remove and pat in any remaining essence rather than rinsing.

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isoi Acni Dr. 1st Speedy Mask 20ml x 10ea

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How it works

The Acni Dr. 1st Speedy Mask is a sheet mask, used after toner, in place of your serum step, in the evening. The plant extract it is built around is Houttuynia Cordata Extract, named sixth on its own ingredient list. The same list carries Centella Asiatica Extract, Sophora Flavescens Root Extract and Hippophae Rhamnoides Fruit Extract, so the plant extract is not the only thing on it worth naming. How much of the Houttuynia Cordata Extract stays on the skin, and for how long, is decided by the sheet mask format rather than by the list alone. This is the Original Korean Formula, the sheet mask isoi sells in Korea, Houttuynia Cordata Extract and all.

Worth knowing

  • Introduce any new product gradually rather than adding several new steps to a routine at once, so a reaction is easy to trace back to the right cause.
  • Patch test on a small area first and wait a day before applying it to the full face, especially the first time you use it.

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Korean-market original

The Original Korean Formula sheet mask from isoi, formulated with Houttuynia Cordata Extract and Centella Asiatica Extract, held in the United States and shipped domestically.

Verify your unit when it arrives

Verify your unit when it arrives

Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.

Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.

On the unit itself

  • The Korean-market barcode, unaltered from the retail package.
  • The manufacturer’s batch code, exactly as the maker printed it.

정품Genuine article, Korean-market stock

What professionals say

What professionals say

What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.

  • Centella can make your skin appear more hydrated, plumper and healthier.

    Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic
  • Its potential for skincare is promoted because of its anti-inflammatory (think blemishes, rashes, eczema) and hydrating properties.

    Michele Koo, MDPlastic surgeon, PureWow
1 more professional perspective
  • These mechanisms not only reinforce barrier function but also mitigate inflammation and accelerate healing.

    Yang TangAssistant Professor, Beijing University of Chinese Medicine, Frontiers in Pharmacology

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