Houttuynia Cordata Extract
Heartleaf
No meaningful concern for most people; irritation is possible but rare.
Also written as: Houttuynia Cordata Leaf Extract · Heartleaf · Fish Mint · Eosinophil
What it is
Houttuynia cordata is a leafy herb used in Korean, Japanese and Chinese traditional medicine, sometimes called heartleaf or fish mint. Cosmetic extracts contain flavonoids such as quercitrin and are used for their soothing and antioxidant properties in toners, ampoules and sheet masks.
What it does well
Helps calm the look of redness in reactive skin
Laboratory work shows anti-inflammatory and antioxidant activity from its flavonoids, and it is a staple of Korean products for sensitised skin, but controlled human trials on the cosmetic extract are scarce.
Limited evidence
Worth knowing
Rare plant contact allergy
As with any botanical extract, sensitisation is possible, though reports are uncommon.
Matters most toPeople who react easily to plant-heavy formulas.
Where the EU stands
No specific restriction
No EU concentration limit or annex restriction. Listed in the EU cosmetic ingredient database as a skin-conditioning ingredient.
Masks that contain Houttuynia Cordata Extract

Abib
Gummy Sheet Mask Heartleaf Sticker
5th of 29 on the label

Anua
Heartleaf 70 Soothing Collagen Mask
29th of 35 on the label
below ≈1%

AXIS-Y
Mugwort Pore Clarifying Wash Off Pack
14th of 36 on the label

Beauty of Joseon
Apricot Blossom Peeling Gel
13th of 19 on the label
below ≈1%

Elizavecca
Centella Deep Power Ringer Mask Pack
6th of 22 on the label

MIZON
Joyful Time Essence Mask Green Tea
11th of 26 on the label
below ≈1%

Petitfee
Black Pearl & Gold Hydrogel Mask Pack
15th of 33 on the label