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KOREAN PHARMACY

Isntree Chestnut BHA 0.9% Clear Toner 200ml

Chestnut shell extract sits fifth and Betaine Salicylate sixth, the BHA the name declares at 0.9 percent, with willow bark and Panthenol behind them. A 200 ml toner on a short list. Korean-market formula.

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$34.00
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Suited to
Congested skinUneven textureDehydrated skinSensitive skin
Helps with
Shoppers looking for Castanea Crenata (Chestnut) Shell Extract in a tonerRoutines that want Castanea Crenata (Chestnut) Shell Extract and Salix Alba (Willow) Bark Extract in one stepFilling the toner step with a Korean-market formulaAnyone who wants the Castanea Crenata (Chestnut) Shell Extract toner sold on Korean shelves

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How it works

The Chestnut BHA 0.9% Clear Toner is a 200ml toner, used straight after cleansing, morning and evening, while the face is still damp. The plant extract it is built around is Castanea Crenata (Chestnut) Shell Extract, named fifth on its own ingredient list. The same list carries Salix Alba (Willow) Bark Extract, Hyacinthus Orientalis Extract and Salvia Sclarea (Clary) Extract, so the plant extract is not the only thing on it worth naming. How much of the Castanea Crenata (Chestnut) Shell Extract stays on the skin, and for how long, is decided by the toner format rather than by the list alone. This is the Original Korean Formula, the toner Isntree sells in Korea, Castanea Crenata (Chestnut) Shell Extract and all.

Key benefits

  • Castanea Crenata (Chestnut) Shell Extract, the plant extract this toner is built around
  • Salix Alba (Willow) Bark Extract, Hyacinthus Orientalis Extract, Salvia Sclarea (Clary) Extract and Centaurea Cyanus Flower Extract on the same list, plant extracts
  • Borago Officinalis Extract and Chamomilla Recutita (Matricaria) Flower Extract further down the same list
  • Lavandula Angustifolia (Lavender) Flower Extract and Portulaca Oleracea Extract further down the same list
  • Castanea Crenata (Chestnut) Shell Extract named fifth on the manufacturer list printed on this page
  • Original Korean Formula, the toner sold on Korean shelves

Key actives

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. On this toner's own ingredient list it is named fifth.

Salix Alba (Willow) Bark Extractplant extract

Willow Bark Extract carries salicin, the plant compound salicylic acid is related to. The two are not interchangeable: willow bark is a mild clarifying extract, not a BHA exfoliant at the levels used in cosmetics. It is named ninth on this toner's list, alongside Castanea Crenata (Chestnut) Shell Extract.

Hyacinthus Orientalis Extractplant extract

Hyacinth extract, used as a floral herbal extract. It is one of the less common botanicals to meet on a Korean label. The panel names it eleventh on this toner's list, beside Castanea Crenata (Chestnut) Shell Extract.

Salvia Sclarea (Clary) Extractplant extract

Clary sage extract, carrying flavonoids and tannins. It is the water-based extract and a different ingredient from clary sage essential oil. The panel names it twelfth on this toner's list, beside Castanea Crenata (Chestnut) Shell Extract.

Centaurea Cyanus Flower Extractplant extract

Cornflower extract, a traditional eye-area ingredient in European pharmacy. It carries flavonoids and anthocyanins and is used in gentle formulas. The panel names it thirteenth on this toner's list, beside Castanea Crenata (Chestnut) Shell Extract.

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Isntree Chestnut BHA 0.9% Clear Toner 200ml

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How to use

  1. Apply at night after cleansing, before any serum or moisturiser goes on.
  2. Soak a cotton pad and sweep it over the nose, chin and any congested areas.
  3. Follow with a moisturiser once it has dried, because a clarifying step alone leaves the surface bare.
  4. Do not use it on the same night as another exfoliant, since stacking acids is what turns a routine sore.

Worth knowing

  • Patch test this toner on a small area and wait a day before using it more widely, especially with Castanea Crenata (Chestnut) Shell Extract on the list.
  • Introduce this toner on its own for the first week, so anything your skin does is traceable to the Castanea Crenata (Chestnut) Shell Extract rather than to three changes at once.

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Korean-market original

The Original Korean Formula toner from Isntree, 200ml formulated with Castanea Crenata (Chestnut) Shell Extract and Salix Alba (Willow) Bark 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 skin care, quoted from the medical sources linked beside each.

  • Your skin barrier is basically your outer layer of the skin.

    Melissa Piliang, MDDermatologist, Cleveland Clinic
  • Pretty much every step of a Korean skin care routine is going to have some component of hydration.

    Alok Vij, MDDermatologist, Cleveland Clinic

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